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Functions
int	GK_set_interpmode (int)
	Set interpolation mode.

void	GK_set_tension (float)
	Set value for tension when interpmode is KF_SPLINE.

void	GK_showtension_start (void)

void	GK_showtension_stop (void)
	Show tension stop ?

void	GK_update_tension (void)
	Update tension.

void	GK_update_frames (void)
	Recalculate path using the current number of frames requested.

void	GK_set_numsteps (int)
	Set the number of frames to be interpolated from keyframes.

void	GK_clear_keys (void)
	Deletes all keyframes, resets field masks.

void	GK_print_keys (const char *)
	Print keyframe info.

int	GK_move_key (float, float, float)
	Move keyframe.

int	GK_delete_key (float, float, int)

int	GK_add_key (float, unsigned long, int, float)
	Add keyframe.

void	GK_do_framestep (int, int)
	Moves the animation to frame number "step".

void	GK_show_path (int)
	Draw the current path.

void	GK_show_vect (int)
	Show vector sets.

void	GK_show_site (int)
	Show point sets.

void	GK_show_vol (int)
	Show volumes.

void	GK_show_list (int)
	Show list.

int	GP_site_exists (int)
	Check if point set exists.

int	GP_new_site (void)
	Create new point set.

int	GP_num_sites (void)
	Get number of loaded point sets.

int *	GP_get_site_list (int *)
	Get list of point sets.

int	GP_delete_site (int)
	Delete registered point set.

int	GP_load_site (int, const char *)
	Load point set from file.

int	GP_get_sitename (int, char **)
	Get point set filename.

int	GP_get_style (int, int , int , float , int )
	Get point set style.

int	GP_set_style (int, int, int, float, int)
	Set point style.

int	GP_set_style_thematic (int, int, const char , const char , const char , const char , struct Colors *)
	Set point set style for thematic mapping.

int	GP_unset_style_thematic (int)
	Make style for thematic mapping inactive.

int	GP_attmode_color (int, const char *)

int	GP_attmode_none (int)

int	GP_set_zmode (int, int)
	Set z mode for point set.

int	GP_get_zmode (int, int *)
	Get z-mode.

void	GP_set_trans (int, float, float, float)
	Set transformation params.

void	GP_get_trans (int, float , float , float *)
	Get transformation params.

int	GP_select_surf (int, int)
	Select surface for given point set.

int	GP_unselect_surf (int, int)
	Unselect surface.

int	GP_surf_is_selected (int, int)
	Check if surface is selected.

void	GP_draw_site (int)
	Draw point set.

void	GP_alldraw_site (void)
	Draw all available point sets.

int	GP_Set_ClientData (int, void *)
	Set client data.

void *	GP_Get_ClientData (int)
	Get client data.

int	GP_str_to_marker (const char *)
	Determine point marker symbol for string.

void	void_func (void)

void	GS_libinit (void)
	Initialize OGSF library.

int	GS_get_longdim (float *)
	Get largest dimension.

int	GS_get_region (float , float , float , float )
	Get 2D region extent.

void	GS_set_att_defaults (float , float )
	Set default attributes for map objects.

int	GS_surf_exists (int)

int	GS_new_surface (void)
	Add new surface.

int	GS_new_light (void)
	Add new model light.

void	GS_set_light_reset (int)

int	GS_get_light_reset (void)

void	GS_setlight_position (int, float, float, float, int)
	Set light position.

void	GS_setlight_color (int, float, float, float)
	Set light color.

void	GS_setlight_ambient (int, float, float, float)
	Set light ambient.

void	GS_lights_off (void)
	Switch off all lights.

void	GS_lights_on (void)
	Switch on all lights.

void	GS_switchlight (int, int)
	Switch on/off light.

int	GS_transp_is_set (void)
	Check if transparency is set.

void	GS_get_modelposition1 (float *)

void	GS_get_modelposition (float , float )
	Retrieves coordinates for lighting model position, at center of view.

void	GS_draw_X (int, float *)
	Draw place marker.

void	GS_set_Narrow (int , int, float )
	Set decoration, north arrow ??

void	GS_draw_line_onsurf (int, float, float, float, float)
	Draw line on surface.

int	GS_draw_nline_onsurf (int, float, float, float, float, float *, int)
	Draw multiline on surface.

void	GS_draw_flowline_at_xy (int, float, float)
	Draw flow-line on surace.

void	GS_draw_lighting_model1 (void)
	Draw lighting model.

void	GS_draw_lighting_model (void)
	Draw lighting model.

int	GS_update_curmask (int)
	Update current mask.

int	GS_is_masked (int, float *)
	Check if point is masked ?

void	GS_unset_SDsurf (void)
	Unset Scaled Difference surface.

int	GS_set_SDsurf (int)
	Set surface as Scaled Difference surface.

int	GS_set_SDscale (float)
	Set ?

int	GS_get_SDsurf (int *)
	Get ?

int	GS_get_SDscale (float *)
	Get ?

int	GS_update_normals (int)
	Update normals.

int	GS_get_att (int, int, int , float , char *)
	Get attributes.

int	GS_get_cat_at_xy (int, int, char *, float, float)
	Get surface category on given position.

int	GS_get_norm_at_xy (int, float, float, float *)
	Get surface normal at x,y (real coordinates)

int	GS_get_val_at_xy (int, int, char *, float, float)
	Get RGB color at given point.

int	GS_unset_att (int, int)
	Unset attribute.

int	GS_set_att_const (int, int, float)
	Set attribute constant.

int	GS_set_maskmode (int, int)
	Set mask mode.

int	GS_get_maskmode (int, int *)
	Get mask mode.

int	GS_Set_ClientData (int, void *)
	Set client data.

void *	GS_Get_ClientData (int)
	Get client data.

int	GS_num_surfs (void)
	Get number of surfaces.

int *	GS_get_surf_list (int *)
	Get surface list.

int	GS_delete_surface (int)
	Delete surface.

int	GS_load_att_map (int, const char *, int)
	Load raster map as attribute.

void	GS_draw_surf (int)
	Draw surface.

void	GS_draw_wire (int)
	Draw surface wire.

void	GS_alldraw_wire (void)
	Draw all wires.

void	GS_alldraw_surf (void)
	Draw all surfaces.

void	GS_set_exag (int, float)
	Set Z exag for surface.

void	GS_set_global_exag (float)
	Set global z-exag value.

float	GS_global_exag (void)
	Get global z-exag value.

void	GS_set_wire_color (int, int)
	Set wire color.

int	GS_get_wire_color (int, int *)
	Get wire color.

int	GS_setall_drawmode (int)
	Set all draw-modes.

int	GS_set_drawmode (int, int)
	Set draw mode.

int	GS_get_drawmode (int, int *)
	Get draw mode.

void	GS_set_nozero (int, int, int)
	Set no-zero ?

int	GS_get_nozero (int, int, int *)
	Get no-zero ?

int	GS_setall_drawres (int, int, int, int)
	Set all draw resolutions.

int	GS_set_drawres (int, int, int, int, int)
	Set draw resolution for surface.

void	GS_get_drawres (int, int , int , int , int )
	Get draw resolution of surface.

void	GS_get_dims (int, int , int )
	Get dimension of surface.

int	GS_get_exag_guess (int, float *)
	Get exag-value guess.

void	GS_get_zrange_nz (float , float )
	Get Z extents for all loaded surfaces.

void	GS_set_trans (int, float, float, float)
	Set translation (surface position)

void	GS_get_trans (int, float , float , float *)
	Get translation values (surface position)

unsigned int	GS_default_draw_color (void)
	Get default draw color.

unsigned int	GS_background_color (void)
	Get background color.

void	GS_set_draw (int)
	Sets which buffer to draw to.

void	GS_ready_draw (void)

void	GS_done_draw (void)
	Draw done, swap buffers.

void	GS_set_focus (float *)
	Set focus.

int	GS_get_focus (float *)
	Get focus.

void	GS_set_focus_center_map (int)
	Set focus to map center.

void	GS_moveto (float *)
	Move viewpoint.

void	GS_moveto_real (float *)
	Move position to (real)

void	GS_set_focus_real (float *)
	Set real focus.

void	GS_get_to_real (float *)
	Get 'to' real coordinates.

int	GS_get_zextents (int, float , float , float *)
	Get z-extent for a single surface.

int	GS_get_zrange (float , float , int)
	Get z-extent for all loaded surfaces.

void	GS_get_from (float *)
	Get viewpoint 'from' position.

void	GS_get_from_real (float *)
	Get viewpoint 'from' real coordinates.

void	GS_get_to (float *)
	Get 'to' model coordinates.

void	GS_get_viewdir (float *)
	Get viewdir.

void	GS_set_viewdir (float *)
	Set viewdir.

void	GS_set_fov (int)
	Set field of view.

void	GS_set_rotation (double, double, double, double)
	Set rotation params.

void	GS_get_rotation_matrix (double *)
	Get rotation matrix.

void	GS_set_rotation_matrix (double *)
	Set rotation matrix.

void	GS_init_rotation (void)
	Reset scene rotation.

void	GS_unset_rotation (void)
	Stop scene rotation.

int	GS_get_fov (void)
	Get field of view.

int	GS_get_twist (void)
	Get twist value.

void	GS_set_twist (int)
	Set viewpoint twist value.

void	GS_set_nofocus (void)
	Unset focus.

void	GS_set_infocus (void)
	Set focus.

void	GS_set_viewport (int, int, int, int)
	Set viewport.

int	GS_look_here (int, int)
	Send screen coords sx and sy, lib traces through surfaces; sets new center to point of nearest intersection.

int	GS_get_selected_point_on_surface (int, int, int , float , float , float )
	Get selected point of surface.

void	GS_set_cplane_rot (int, float, float, float)
	Set cplace rotation.

void	GS_set_cplane_trans (int, float, float, float)
	Set cplace trans.

void	GS_draw_cplane (int)
	Draw cplace.

int	GS_draw_cplane_fence (int, int, int)
	Draw cplace fence ?

void	GS_alldraw_cplane_fences (void)
	Draw all cplace fences ?

void	GS_set_cplane (int)
	Set cplace.

void	GS_unset_cplane (int)
	Unset clip place (turn off)

void	GS_get_scale (float , float , float *, int)
	Get axis scale.

void	GS_set_fencecolor (int)
	Set fence color.

int	GS_get_fencecolor (void)
	Get fence color.

int	GS_get_distance_alongsurf (int, float, float, float, float, float *, int)
	Measure distance "as the ball rolls" between two points on surface.

int	GS_save_3dview (const char *, int)
	Save 3d view.

int	GS_load_3dview (const char *, int)
	Load 3d view.

void	GS_init_view (void)
	Init viewpoint.

void	GS_clear (int)
	Clear view.

double	GS_get_aspect (void)
	Get aspect value.

int	GS_has_transparency (void)
	Check for transparency.

void	GS_zoom_setup (int , int , int , int , int , int )
	Get zoom setup.

int	GS_write_zoom (const char *, unsigned int, unsigned int)
	Write zoom to file.

void	GS_draw_all_list (void)
	Draw all glLists.

void	GS_delete_list (GLuint)
	Delete pre-defined list.

int	GS_draw_legend (const char , GLuint, int, int , float , int )
	Draw legend.

void	GS_draw_fringe (int, unsigned long, float, int *)
	Draw fringe around data (surface) at selected corners.

void	GS_getlight_position (int, float , float , float , int )
	Get light position.

void	GS_getlight_color (int, float , float , float *)
	Get light color.

void	GS_getlight_ambient (int, float , float , float *)
	Get light ambient.

int	GS_check_cancel (void)
	Check for cancel.

void	GS_set_cancel (int)
	Set cancel.

void	GS_set_cxl_func (void(*)(void))
	Set cxl function.

double	GS_geodistance (double , double , const char *)
	Calculate distance between 2 coordinates.

float	GS_distance (float , float )
	Calculate distance.

float	GS_P2distance (float , float )
	Calculate distance in plane.

void	GS_v3eq (float , float )
	Copy vector values.

void	GS_v3add (float , float )
	Sum vectors.

void	GS_v3sub (float , float )
	Subtract vectors.

void	GS_v3mult (float *, float)
	Multiple vectors.

int	GS_v3norm (float *)
	Change v1 so that it is a unit vector (3D)

int	GS_v2norm (float *)
	Change v1 so that it is a unit vector (2D)

int	GS_dv3norm (double *)
	Changes v1 so that it is a unit vector.

int	GS_v3normalize (float , float )
	Change v2 so that v1v2 is a unit vector.

int	GS_v3dir (float , float , float *)
	Get a normalized direction from v1 to v2, store in v3.

void	GS_v2dir (float , float , float *)
	Get a normalized direction from v1 to v2, store in v3 (2D)

void	GS_v3cross (float , float , float *)
	Get the cross product v3 = v1 cross v2.

void	GS_v3mag (float , float )
	Magnitude of vector.

int	GS_coordpair_repeats (float , float , int)
	ADD.

int	GV_vect_exists (int)
	Check if vector set exists.

int	GV_new_vector (void)
	Register new vector set.

int	GV_num_vects (void)
	Get number of available vector sets.

int *	GV_get_vect_list (int *)
	Get list of vector sets.

int	GV_delete_vector (int)
	Delete vector set from list.

int	GV_load_vector (int, const char *)
	Load vector set.

int	GV_get_vectname (int, char **)
	Get vector map name.

int	GV_set_style (int, int, int, int, int)
	Set vector style.

int	GV_get_style (int, int , int , int , int )
	Get vector style.

int	GV_set_style_thematic (int, int, const char , const char , struct Colors *)
	Set vector set style for thematic mapping.

int	GV_unset_style_thematic (int)
	Make style for thematic mapping inactive.

void	GV_set_trans (int, float, float, float)
	Set trans ?

int	GV_get_trans (int, float , float , float *)
	Get trans ?

int	GV_select_surf (int, int)
	Select surface identified by hs to have vector identified by hv draped over it.

int	GV_unselect_surf (int, int)
	Unselect surface.

int	GV_surf_is_selected (int, int)
	Check if surface is selected.

void	GV_draw_vect (int)
	Draw vector set.

void	GV_alldraw_vect (void)
	Draw all loaded vector sets.

void	GV_alldraw_fastvect (void)
	Draw all loaded vector sets (fast mode)

void	GV_draw_fastvect (int)
	Draw vector set (fast mode)

int	GV_Set_ClientData (int, void *)
	Set client data.

void *	GV_Get_ClientData (int)
	Get client data.

void	GVL_libinit (void)
	Library initialization for volumes.

void	GVL_init_region (void)
	Initialize 3D region.

int	GVL_get_region (float , float , float , float , float , float )
	Get region extent settings.

void *	GVL_get_window (void)
	Get window.

int	GVL_vol_exists (int)
	Check if volume set exists.

int	GVL_new_vol (void)
	Create new volume set.

int	GVL_num_vols (void)
	Get number of loaded volume sets.

int *	GVL_get_vol_list (int *)
	Get list of loaded volume sets.

int	GVL_delete_vol (int)
	Delete volume set from list.

int	GVL_load_vol (int, const char *)
	Load 3d raster map to volume set.

int	GVL_get_volname (int, char *)
	Get volume set name.

void	GVL_set_trans (int, float, float, float)
	Set trans ?

int	GVL_get_trans (int, float , float , float *)
	Get trans ?

void	GVL_set_draw_wire (int, int)
	Set drawing wire box.

void	GVL_draw_vol (int)
	Draw volume set.

void	GVL_draw_wire (int)
	Draw volume in wire mode.

void	GVL_alldraw_vol (void)
	Draw all volume sets.

void	GVL_alldraw_wire (void)
	Draw all volume sets in wire mode.

int	GVL_Set_ClientData (int, void *)
	Set client data for volume set.

void *	GVL_Get_ClientData (int)
	Get client data.

void	GVL_get_dims (int, int , int , int *)
	Get volume dimensions.

void	GVL_set_focus_center_map (int)
	Set focus on map center.

int	GVL_isosurf_move_up (int, int)
	Move up isosurface in list.

int	GVL_isosurf_move_down (int, int)
	Move down isosurface in list.

void	GVL_isosurf_get_drawres (int, int , int , int *)
	Get draw resolution for isosurface.

int	GVL_isosurf_set_drawres (int, int, int, int)
	Set isosurface draw resolution.

int	GVL_isosurf_get_drawmode (int, int *)
	Get isosurface draw mode.

int	GVL_isosurf_set_drawmode (int, int)
	Set isosurface draw mode.

int	GVL_isosurf_add (int)
	Add isosurface.

int	GVL_isosurf_del (int, int)
	Delete isosurface.

int	GVL_isosurf_get_att (int, int, int, int , float , char *)
	Get isosurface attributes.

int	GVL_isosurf_unset_att (int, int, int)
	Unset isosurface attributes.

int	GVL_isosurf_set_att_const (int, int, int, float)
	Set constant isosurface attribute.

int	GVL_isosurf_set_att_map (int, int, int, const char *)
	Set isosurface map attribute.

int	GVL_isosurf_get_flags (int, int, int *)
	Get isosurface flags.

int	GVL_isosurf_set_flags (int, int, int)
	Set isosurface flags.

int	GVL_isosurf_num_isosurfs (int)
	Get number of available isosurfaces.

int	GVL_isosurf_set_maskmode (int, int, int)
	Set mask attribute mode.

int	GVL_isosurf_get_maskmode (int, int, int *)
	Get isosurface mask mode.

int	GVL_slice_move_up (int, int)
	Move up slice.

int	GVL_slice_move_down (int, int)
	Move down slice.

void	GVL_slice_get_drawres (int, int , int , int *)
	Get draw resolution of slice.

int	GVL_slice_get_transp (int, int, int *)
	Get slice trans ?

int	GVL_slice_set_transp (int, int, int)
	Set slice trans ?

int	GVL_slice_set_drawres (int, int, int, int)
	Set slice draw resolution.

int	GVL_slice_get_drawmode (int, int *)
	Get slice draw mode.

int	GVL_slice_set_drawmode (int, int)
	Set slice draw mode.

int	GVL_slice_add (int)
	Add slice.

int	GVL_slice_del (int, int)
	Delete slice.

int	GVL_slice_num_slices (int)
	Get number or slices.

int	GVL_slice_get_pos (int, int, float , float , float , float , float , float , int *)
	Get slice position.

int	GVL_slice_set_pos (int, int, float, float, float, float, float, float, int)
	Get slice position.

int	Gp_set_color (const char , geopoint )

geopoint *	Gp_load_sites (const char , int , int *)
	Load to points to memory.

int	Gp_load_sites_thematic (geosite , struct Colors )
	Load styles for geopoints based on thematic mapping.

double	Gs_distance (double , double )
	Calculates distance in METERS between two points in current projection (2D)

int	Gs_loadmap_as_float (struct Cell_head , const char , float , struct BM , int *)
	Load raster map as floating point map.

int	Gs_loadmap_as_int (struct Cell_head , const char , int , struct BM , int *)
	Load raster map as integer map.

int	Gs_numtype (const char , int )
	Get map data type.

int	Gs_loadmap_as_short (struct Cell_head , const char , short , struct BM , int *)
	Load raster map as integer map.

int	Gs_loadmap_as_char (struct Cell_head , const char , unsigned char , struct BM , int *)
	Load raster map as integer map.

int	Gs_loadmap_as_bitmap (struct Cell_head , const char , struct BM *)
	Load raster map as integer map.

int	Gs_build_256lookup (const char , int )
	Build color table (256)

void	Gs_pack_colors (const char , int , int, int)
	Pack color table.

void	Gs_pack_colors_float (const char , float , int *, int, int)
	Pack color table (floating-point map)

int	Gs_get_cat_label (const char , int, int, char )
	Get categories/labels.

int	Gs_save_3dview (const char , geoview , geodisplay , struct Cell_head , geosurf *)
	Save 3dview.

int	Gs_load_3dview (const char , geoview , geodisplay , struct Cell_head , const geosurf *)
	Load 3dview.

int	Gs_update_attrange (geosurf *, int)
	Update no_zero ranges for attribute (actually no_null now)

geoline *	Gv_load_vect (const char , int )
	Load vector map to memory.

int	Gv_load_vect_thematic (geovect , struct Colors )
	Load styles for geolines based on thematic mapping.

void	sub_Vectmem (int)
	Tracking memory.

Keylist *	gk_copy_key (Keylist *)
	Copy keyframes.

unsigned long	gk_get_mask_sofar (float, Keylist *)
	Get mask value.

int	gk_viable_keys_for_mask (unsigned long, Keylist , Keylist *)
	ADD.

void	gk_follow_frames (Viewnode , int, Keylist , int, int, int, unsigned long)
	Checks key masks.

void	gk_free_key (Keylist *)
	Free keyframe list.

Viewnode *	gk_make_framesfromkeys (Keylist *, int, int, int, float)
	Generate viewnode from keyframes.

double	get_key_neighbors (int, double, double, int, Keylist , Keylist , Keylist , Keylist , Keylist *, double , double *)

double	lin_interp (float, float, float)
	Linear interpolation.

double	get_2key_neighbors (int, float, float, int, Keylist , Keylist , Keylist **)

Viewnode *	gk_make_linear_framesfromkeys (Keylist *, int, int, int)
	Generate viewnode from keyframe list (linear interpolation)

void	correct_twist (Keylist *)
	Correct twist value.

int	gk_draw_path (Viewnode , int, Keylist )
	Draw path.

geosite *	gp_get_site (int)
	Get geosite struct.

geosite *	gp_get_prev_site (int)
	Get previous geosite struct from list.

int	gp_num_sites (void)
	Get number of loaded point sets.

geosite *	gp_get_last_site (void)
	Get last point set.

geosite *	gp_get_new_site (void)
	Create new geosite instance and add it to list.

void	gp_update_drapesurfs (void)
	Update drape surfaces.

int	gp_set_defaults (geosite *)
	Set default value for geosite struct.

void	print_site_fields (geosite *)

int	gp_init_site (geosite *)
	Initialize geosite struct.

void	gp_delete_site (int)
	Delete point set and remove from list.

int	gp_free_site (geosite *)
	Free allocated geosite struct.

void	gp_free_sitemem (geosite *)
	Free geosite (lower level)

void	gp_set_drapesurfs (geosite , int , int)

int	gs_point_in_region (geosurf , float , float *)
	Check if point is in region.

void	gpd_obj (geosurf , gvstyle , Point3)
	Draw point representing object.

int	gpd_2dsite (geosite , geosurf , int)
	Draw 2D point set.

int	gpd_3dsite (geosite *, float, float, int)
	Draw 3D point set.

void	gs_err (const char *)

void	gs_init (void)
	Initialize library.

geosurf *	gs_get_surf (int)
	Get geosurf struct.

geosurf *	gs_get_prev_surface (int)
	Get previous geosurf struct.

int	gs_getall_surfaces (geosurf **)
	Get array of geosurf structs.

int	gs_num_surfaces (void)
	Get number of surfaces.

int	gs_att_is_set (geosurf *, IFLAG)

geosurf *	gs_get_last_surface (void)
	Get last allocated geosurf struct from list.

geosurf *	gs_get_new_surface (void)
	Allocate new geosurf struct.

int	gs_init_surf (geosurf *, double, double, int, int, double, double)
	Initialize allocated geosurf struct.

int	gs_init_normbuff (geosurf *)
	Init geosurf normbuff.

void	print_frto (float(*)[4])
	Debugging, print 'from/to' model coordinates to stderr.

void	print_realto (float *)
	Debugging, print 'to' real coordinates to stderr.

void	print_256lookup (int *)
	Debugging, 256 integer values from buffer.

void	print_surf_fields (geosurf *)
	Debugging, print geosurf fields to stderr.

void	print_view_fields (geoview *)
	Debugging, print geoview fields to stderr.

void	gs_set_defaults (geosurf , float , float *)
	Set default attribute values.

void	gs_delete_surf (int)
	Remove geosurf struct from list.

int	gs_free_surf (geosurf *)
	Free geosurf struct.

void	gs_free_unshared_buffs (geosurf *)
	Free unshared buffers of geosurf struct.

int	gs_num_datah_reused (int)
	Get number of reused values.

int	gs_get_att_type (geosurf *, int)
	Get attribute type.

int	gs_get_att_src (geosurf *, int)
	Get attribute source.

typbuff *	gs_get_att_typbuff (geosurf *, int, int)
	Get attribute data buffer.

size_t	gs_malloc_att_buff (geosurf *, int, int)
	Allocate attribute buffer.

int	gs_malloc_lookup (geosurf *, int)
	Allocate attribute lookup.

int	gs_set_att_type (geosurf *, int, int)
	Set attribute type.

int	gs_set_att_src (geosurf *, int, int)
	Set attribute source.

int	gs_set_att_const (geosurf *, int, float)
	Set attribute constant value.

void	gs_set_maskmode (int)
	Set geosurf mask mode.

int	gs_mask_defined (geosurf *)
	Check if mask is defined.

int	gs_masked (typbuff *, int, int, int)
	Should only be called when setting up the current mask (gs_bm.c)

int	gs_mapcolor (typbuff , gsurf_att , int)
	Call this one when you already know att_src is MAP_ATT.

int	gs_get_zextents (geosurf , float , float , float )
	Get z-extent values.

int	gs_get_xextents (geosurf , float , float *)
	Get x-extent values.

int	gs_get_yextents (geosurf , float , float *)
	Get y-extent values.

int	gs_get_zrange0 (float , float )
	Get z-range.

int	gs_get_zrange (float , float )
	Get z-range.

int	gs_get_xrange (float , float )
	Get x-range.

int	gs_get_yrange (float , float )
	Get y-range.

int	gs_get_data_avg_zmax (float *)
	Get average z-max value.

int	gs_get_datacenter (float *)
	Get data center point.

int	gs_setall_norm_needupdate (void)
	Set for geosurf need-to-update mark.

int	gs_point_is_masked (geosurf , float )
	Check if point is masked.

int	gs_distance_onsurf (geosurf , float , float , float , int)
	Calculate distance on surface.

struct BM *	gsbm_make_mask (typbuff *, float, int, int)
	Do combining of bitmaps, make bitmaps from other data w/maskval.

void	gsbm_zero_mask (struct BM *)
	Zero mask.

int	gsbm_or_masks (struct BM , struct BM )
	Mask bitmap (mask type OR)

int	gsbm_ornot_masks (struct BM , struct BM )
	Mask bitmap (mask type ORNOT)

int	gsbm_and_masks (struct BM , struct BM )
	Mask bitmap (mask type ADD)

int	gsbm_xor_masks (struct BM , struct BM )
	Mask bitmap (mask type XOR)

int	gs_update_curmask (geosurf *)
	Update current maps.

void	print_bm (struct BM *)
	Print bitmap to stderr.

void	init_vars (geosurf *)
	Init variables.

int	gs_calc_normals (geosurf *)
	Calculate normals.

int	calc_norm (geosurf *, int, int, unsigned int)
	Calculate normals.

int	gs_los_intersect1 (int, float()[3], float )
	Crude method of intersecting line of sight with closest part of surface.

int	gs_los_intersect (int, float *, float )
	Crude method of intersecting line of sight with closest part of surface.

int	RayCvxPolyhedronInt (Point3, Point3, double, Point4 , int, double , int *)
	Ray-Convex Polyhedron Intersection Test.

void	gs_get_databounds_planes (Point4 *)
	Get data bounds for plane.

int	gs_setlos_enterdata (Point3 *)

void	gsd_def_cplane (int, float , float )
	Define cplace.

void	gsd_update_cplanes (void)
	Update cplaces.

void	gsd_cplane_on (int)
	ADD.

void	gsd_cplane_off (int)
	Turn off clip plane.

void	gsd_get_cplanes_state (int *)
	Get cplane state.

int	gsd_get_cplanes (Point4 *)
	Get cplaces.

void	gsd_update_cpnorm (int)
	ADD.

void	gsd_cplane_setrot (int, float, float, float)
	ADD.

void	gsd_cplane_settrans (int, float, float, float)
	ADD.

void	gsd_draw_cplane_fence (geosurf , geosurf , int)
	ADD.

void	gsd_draw_cplane (int)
	Draw cplane.

GLuint	gsd_set_font (const char *)

int	gsd_get_txtwidth (const char *, int)
	Get text width.

int	gsd_get_txtheight (int size)
	Get text height.

void	do_label_display (GLuint, float , const char )
	Display label.

int	get_txtdescender (void)
	Get text descender.

int	get_txtxoffset (void)
	Get text offset.

int	GS_write_ppm (const char *)
	Save current GL screen to ppm file.

int	GS_write_tif (const char *)
	Write data to tif file.

void	gs_put_label (const char , GLuint, int, unsigned long, int )
	Put label.

void	gsd_remove_curr (void)
	Remove current label.

void	gsd_remove_all (void)
	Remove all labels from display list.

void	gsd_call_label (void)
	Call display list and draw defined labels – called from gsd_prim (gsd_call_lists)

void	gsd_box (float , int, float )
	Draws a box at the specified center location.

void	gsd_plus (float *, int, float)
	Draws a plus sign symbol at the specified center location.

void	gsd_line_onsurf (geosurf , float , float *)
	Line on surface, fix z-values.

int	gsd_nline_onsurf (geosurf , float , float , float , int)
	Multiline on surface, fix z-values.

void	gsd_x (geosurf , float , int, float)
	Draws a X symbol at the specified center location.

void	gsd_diamond (float *, unsigned long, float)
	Draws a diamond symbol at the specified center location.

void	gsd_diamond_lines (void)
	Draw diamond lines.

void	gsd_cube (float *, unsigned long, float)
	Draws a cube symbol at the specified center location.

void	gsd_draw_box (float *, unsigned long, float)
	Draws a box symbol at the specified center location.

void	gsd_drawsphere (float *, unsigned long, float)
	Draws a sphere at the specified center location.

void	gsd_draw_asterisk (float *, unsigned long, float)
	Draws an asterisk symbol at the specified center location.

void	gsd_draw_gyro (float *, unsigned long, float)
	Draws a gyro symbol at the specified center location.

void	gsd_3dcursor (float *)
	Draw 3d cursor.

void	dir_to_slope_aspect (float , float , float *, int)
	Converts a direction vector to slope and aspect angles.

int	gsd_north_arrow (float *, float, GLuint, unsigned long, unsigned long)
	Draw North Arrow.

int	gsd_arrow (float , unsigned long, float, float , float, geosurf *)
	Draws an arrow.

int	gsd_arrow_onsurf (float , float , unsigned long, int, geosurf *)
	Draw north arrow on surface.

void	gsd_3darrow (float , unsigned long, float, float, float , float)
	Draw 3d north arrow.

int	gsd_scalebar (float *, float, GLuint, unsigned long, unsigned long)
	Draw Scalebar takes OpenGL coords and size.

int	gsd_scalebar_v2 (float *, float, GLuint, unsigned long, unsigned long)
	Draw Scalebar (as lines)

void	primitive_cone (unsigned long)
	Primitives only called after transforms.

void	primitive_cylinder (unsigned long, int)
	Primitives only called after transforms.

void	gsd_flush (void)
	Mostly for flushing drawing commands across a network.

void	gsd_colormode (int)
	Set color mode.

void	show_colormode (void)
	Print color mode to stderr.

void	gsd_circ (float, float, float)
	ADD.

void	gsd_disc (float, float, float, float)
	ADD.

void	gsd_sphere (float *, float)
	ADD.

void	gsd_zwritemask (unsigned long)
	Write out z-mask.

void	gsd_backface (int)
	ADD.

void	gsd_linewidth (short)
	Set width of rasterized lines.

void	gsd_bgnqstrip (void)
	ADD.

void	gsd_endqstrip (void)
	ADD.

void	gsd_bgntmesh (void)
	ADD.

void	gsd_endtmesh (void)
	ADD.

void	gsd_bgntstrip (void)
	ADD.

void	gsd_endtstrip (void)
	ADD.

void	gsd_bgntfan (void)
	ADD.

void	gsd_endtfan (void)
	ADD.

void	gsd_swaptmesh (void)
	ADD.

void	gsd_bgnpolygon (void)
	Delimit the vertices of a primitive or a group of like primitives.

void	gsd_endpolygon (void)
	Delimit the vertices of a primitive or a group of like primitives.

void	gsd_bgnline (void)
	Begin line.

void	gsd_endline (void)
	End line.

void	gsd_shademodel (int)
	Set shaded model.

int	gsd_getshademodel (void)
	Get shaded model.

void	gsd_bothbuffers (void)
	Draw to the front and back buffers.

void	gsd_frontbuffer (void)
	Draw to the front buffer.

void	gsd_backbuffer (void)
	Draw to the back buffer.

void	gsd_swapbuffers (void)
	Swap buffers.

void	gsd_popmatrix (void)
	Pop the current matrix stack.

void	gsd_pushmatrix (void)
	Push the current matrix stack.

void	gsd_scale (float, float, float)
	Multiply the current matrix by a general scaling matrix.

void	gsd_translate (float, float, float)
	Multiply the current matrix by a translation matrix.

void	gsd_rot (float, char)
	ADD.

void	gsd_checkwindow (int , int , double , double )

int	gsd_checkpoint (float[4], int[4], int[4], double[16], double[16])
	ADD.

void	gsd_litvert_func (float , unsigned long, float )
	Set the current normal vector & specify vertex.

void	gsd_litvert_func2 (float , unsigned long, float )
	ADD.

void	gsd_vert_func (float *)
	ADD.

void	gsd_color_func (unsigned int)
	Set current color.

void	gsd_init_lightmodel (void)
	Initialize model light.

void	gsd_set_material (int, int, float, float, int)
	Set material.

void	gsd_deflight (int, struct lightdefs *)
	Define light.

void	gsd_switchlight (int, int)
	Switch light on/off.

int	gsd_getimage (unsigned char *, unsigned int , unsigned int *)
	Get image of current GL screen.

void	gsd_blend (int)
	Specify pixel arithmetic.

void	gsd_def_clipplane (int, double *)
	Define clip plane.

void	gsd_set_clipplane (int, int)
	Set clip plane.

void	gsd_finish (void)
	Finish.

void	gsd_viewport (int, int, int, int)
	Set the viewport.

int	gsd_makelist (void)
	ADD.

void	gsd_bgnlist (int, int)
	ADD.

void	gsd_endlist (void)
	End list.

void	gsd_calllist (int)
	ADD.

void	gsd_deletelist (GLuint, int)
	Delete list.

void	gsd_calllists (int)
	ADD.

void	gsd_getwindow (int , int , double , double )
	Get viewport.

int	gsd_writeView (unsigned char **, unsigned int, unsigned int)
	Write view.

int	gsd_surf (geosurf *)
	ADD.

int	gsd_surf_map (geosurf *)
	Draw surface using triangle fan instead of strip.

int	gsd_surf_const (geosurf *, float)
	Using tmesh - not confident with qstrips portability.

int	gsd_surf_func (geosurf , int()(void))
	Define user function.

int	gsd_triangulated_wall (int, int, geosurf , geosurf , Point3 , Point3 , float *)
	ADD.

void	gsd_setfc (int)
	ADD.

int	gsd_getfc (void)
	ADD.

int	gsd_ortho_wall (int, int, geosurf , Point3 , float *)
	ADD.

int	gsd_wall (float , float , float *)
	ADD.

int	gsd_norm_arrows (geosurf *)
	ADD.

int	gsd_get_los (float(*)[3], short, short)
	ADD.

void	gsd_set_view (geoview , geodisplay )
	Set view.

void	gsd_check_focus (geoview *)
	Check focus.

void	gsd_get_zup (geoview , double )
	Get z-up vector (z-direction)

int	gsd_zup_twist (geoview *)
	ADD.

void	gsd_do_scale (int)
	Set current scale.

void	gsd_real2model (Point3)
	Convert real to model coordinates.

void	gsd_model2real (Point3)
	Convert model to real coordinates.

void	gsd_model2surf (geosurf *, Point3)
	Convert model to surface coordinates.

void	gsd_surf2model (Point3)
	Convert surface to model coordinates.

void	gsd_surf2real (geosurf *, Point3)
	Convert surface to real coordinates.

void	gsd_real2surf (geosurf *, Point3)
	Convert real to surface coordinates.

int	gsd_wire_surf (geosurf *)
	Draw surface wire.

int	gsd_wire_surf_map (geosurf *)
	ADD.

int	gsd_coarse_surf_map (geosurf *)
	Draw coarse surface.

int	gsd_wire_surf_const (geosurf *, float)
	ADD.

int	gsd_wire_surf_func (geosurf , int()(void))
	ADD.

int	gsd_wire_arrows (geosurf *)
	ADD.

void	gsdiff_set_SDscale (float)
	Set scale.

float	gsdiff_get_SDscale (void)
	Get scale.

void	gsdiff_set_SDref (geosurf *)
	ADD.

geosurf *	gsdiff_get_SDref (void)
	ADD.

float	gsdiff_do_SD (float, int)
	ADD.

int	gsdrape_set_surface (geosurf *)
	ADD.

int	seg_intersect_vregion (geosurf , float , float *)
	Check if segment intersect vector region.

Point3 *	gsdrape_get_segments (geosurf , float , float , int )
	ADD.

Point3 *	gsdrape_get_allsegments (geosurf , float , float , int )
	Get all segments.

void	interp_first_last (geosurf , float , float *, Point3, Point3)
	ADD.

int	_viewcell_tri_interp (geosurf *, Point3)
	ADD.

int	viewcell_tri_interp (geosurf , typbuff , Point3, int)
	ADD.

int	in_vregion (geosurf , float )
	ADD.

int	order_intersects (geosurf *, Point3, Point3, int, int, int)
	ADD.

int	get_vert_intersects (geosurf , float , float , float )
	ADD.

int	get_horz_intersects (geosurf , float , float , float )
	Get horizontal intersects.

int	get_diag_intersects (geosurf , float , float , float )
	Get diagonal intersects.

int	segs_intersect (float, float, float, float, float, float, float, float, float , float )
	Line intersect.

int	Point_on_plane (Point3, Point3, Point3, Point3)
	Check if point is on plane.

int	XY_intersect_plane (float , float )
	Check for intersection (point and plane)

int	P3toPlane (Point3, Point3, Point3, float *)
	Define plane.

int	V3Cross (Point3, Point3, Point3)
	Get cross product.

int	gsds_findh (const char , IFLAG , IFLAG *, int)

int	gsds_newh (const char *)
	Get handle to gsds.

typbuff *	gsds_get_typbuff (int, IFLAG)

char *	gsds_get_name (int)
	Get name.

int	gsds_free_datah (int)
	Free allocated dataset.

int	gsds_free_data_buff (int, int)
	Free allocated buffer.

size_t	free_data_buffs (dataset *, int)
	Free data buffer.

size_t	gsds_alloc_typbuff (int, int *, int, int)
	Allocates correct buffer according to type, keeps track of total mem.

int	gsds_get_changed (int)
	ADD.

int	gsds_set_changed (int, IFLAG)

int	gsds_get_type (int)
	ADD.

int	get_mapatt (typbuff , int, float )
	Get map attributes.

geovect *	gv_get_vect (int)
	Get vector set.

geovect *	gv_get_prev_vect (int)
	Get previous vector set.

int	gv_num_vects (void)
	Get number of loaded vector sets.

geovect *	gv_get_last_vect (void)
	Get last loaded vector set.

geovect *	gv_get_new_vect (void)
	Allocate memory for new vector set.

void	gv_update_drapesurfs (void)
	Update drape surfaces.

int	gv_set_defaults (geovect *)
	Set attributes of vector set to default values.

int	gv_init_vect (geovect *)
	Initialize geovect struct.

void	gv_delete_vect (int)
	Delete vector set (unload)

int	gv_free_vect (geovect *)
	Free allocated memory for geovect struct.

void	gv_free_vectmem (geovect *)
	Free allocated memory.

void	gv_set_drapesurfs (geovect , int , int)
	Set drape surfaces for vector set.

float	gv_line_length (geoline *)
	Get line width.

int	gln_num_points (geoline *)
	Get number of line vertices.

int	gv_num_points (geovect *)
	Get number of points in vector.

int	gv_decimate_lines (geovect *)
	Decimate line.

int	gs_clip_segment (geosurf , float , float , float )
	Clip segment.

int	gvd_vect (geovect , geosurf , int)
	Draw vector set.

void	gvd_draw_lineonsurf (geosurf , float , float *, int)
	Draw line on surface.

geovol *	gvl_get_vol (int)
	Get volume set structure.

geovol *	gvl_get_prev_vol (int)
	Get previous volume.

int	gvl_getall_vols (geovol **)
	Get all volumes.

int	gvl_num_vols (void)
	Get number of loaded volume sets.

geovol *	gvl_get_last_vol (void)
	Get last volume set from the list.

geovol *	gvl_get_new_vol (void)
	Allocate new volume set and add it to the list.

int	gvl_init_vol (geovol *, double, double, double, int, int, int, double, double, double)
	Initialize geovol structure.

void	gvl_delete_vol (int)
	Remove volume set from list.

int	gvl_free_vol (geovol *)
	Free geovol struct.

void	gvl_free_volmem (geovol *)
	Free geovol struct memory.

void	print_vol_fields (geovol *)
	Debug volume fields.

int	gvl_get_xextents (geovol , float , float *)
	Get volume x-extent value.

int	gvl_get_yextents (geovol , float , float *)
	Get volume y-extent value.

int	gvl_get_zextents (geovol , float , float *)
	Get volume z-extent value.

int	gvl_get_xrange (float , float )
	Get volume x-range value.

int	gvl_get_yrange (float , float )
	Get volume y-range value.

int	gvl_get_zrange (float , float )
	Get volume z-range value.

int	gvl_isosurf_init (geovol_isosurf *)
	Initialize geovol_isosurf struct.

int	gvl_isosurf_freemem (geovol_isosurf *)
	Free geovol_isosurf struct.

geovol_isosurf *	gvl_isosurf_get_isosurf (int, int)
	Get isosurface of given volume set.

int	gvl_isosurf_get_att_src (geovol_isosurf *, int)
	Get attribute source.

int	gvl_isosurf_set_att_src (geovol_isosurf *, int, int)
	Set attribute source.

int	gvl_isosurf_set_att_const (geovol_isosurf *, int, float)
	Set isosurface attribute constant.

int	gvl_isosurf_set_att_map (geovol_isosurf , int, const char )
	Set attribute map.

int	gvl_isosurf_set_att_changed (geovol_isosurf *, int)
	Set attribute changed.

int	gvl_slice_init (geovol_slice *)
	Initialize geovol_slice struct.

geovol_slice *	gvl_slice_get_slice (int, int)
	Get geovol_slice struct.

int	gvl_slice_freemem (geovol_slice *)
	Free geovol_slice struct.

void	P_scale (float, float, float)
	ADD.

void	P_transform (int, float()[4], float()[4])
	Transform array of vectors using current T matrix.

int	P_pushmatrix (void)
	Push current transformation matrix onto matrix stack.

int	P_popmatrix (void)
	Pop top of matrix stack, placing it into the current transformation matrix.

void	P_rot (float, char)
	Rotate matrix.

geovol_file *	gvl_file_get_volfile (int)
	Get geovol_file structure for given handle.

char *	gvl_file_get_name (int)
	Get file name for given handle.

int	gvl_file_get_file_type (geovol_file *)
	Get file type for given handle.

int	gvl_file_get_data_type (geovol_file *)
	Get data type for given handle.

int	gvl_file_newh (const char *, IFLAG)

int	gvl_file_free_datah (int)
	Free geovol_file structure for given handle.

int	gvl_file_start_read (geovol_file *)
	Start read - allocate memory buffer a read first data into buffer.

int	gvl_file_end_read (geovol_file *)
	End read - free buffer memory.

int	gvl_file_get_value (geovol_file , int, int, int, void )
	Get value for volume file at x, y, z.

int	gvl_file_is_null_value (geovol_file , void )
	Check for null value.

int	gvl_file_set_mode (geovol_file *, IFLAG)

int	gvl_file_set_slices_param (geovol_file *, int, int)
	Set parameters for slice reading.

void	gvl_file_get_min_max (geovol_file , double , double *)
	Get minimum and maximum value in volume file.

int	Gvl_load_colors_data (void *, const char )
	Load color table.

int	Gvl_unload_colors_data (void *)
	Unload color table.

int	Gvl_get_color_for_value (void , float )
	Get color for value.

int	gvl_isosurf_calc (geovol *)
	Fill data structure with computed isosurfaces polygons.

int	gvl_slices_calc (geovol *)
	Calculate slices for given volume set.

void	gvl_write_char (int, unsigned char **, unsigned char)
	ADD.

unsigned char	gvl_read_char (int, const unsigned char *)
	Read char.

void	gvl_align_data (int, unsigned char **)
	Append data to buffer.

int	gvld_vol (geovol *)
	Draw volume set (slices and isosurfaces)

int	gvld_wire_vol (geovol *)
	Draw volume in wire mode (bounding box)

int	gvld_isosurf (geovol *)
	Draw volume isosurfaces.

int	gvld_wire_isosurf (geovol *)
	Draw volume isosurface in draw mode.

int	gvld_slices (geovol *)
	Draw slices.

int	gvld_slice (geovol *, int)
	Draw slice.

int	gvld_wire_slices (geovol *)
	Draw wire slices.

int	gvld_wind3_box (geovol *)
	Draw volume bounding box.

void	gsd_display_fringe (geosurf *, unsigned long, float, int[4])
	Display fridge.

void	gsd_fringe_horiz_poly (float, geosurf *, int, int)
	Draw fringe polygon in x direction.

void	gsd_fringe_horiz_line (float, geosurf *, int, int)
	Draw fringe outline in x direction.

void	gsd_fringe_vert_poly (float, geosurf *, int, int)
	Draw fringe outline in y direction.

void	gsd_fringe_vert_line (float, geosurf *, int, int)
	Draw fringe outline in y direction.

GLuint	gsd_put_legend (const char , GLuint, int, int , float , int )
	Put legend.

void	gsd_bgn_legend_viewport (GLint, GLint, GLint, GLint)
	ADD.

void	gsd_end_legend_viewport (void)
	ADD.

int	gsd_make_nice_number (float *)
	ADD.

Function Documentation

◆ _viewcell_tri_interp()

int _viewcell_tri_interp	(	geosurf *	gs,
		Point3	pt
	)

ADD.

Parameters

	gs	surface (geosurf)
[in,out]	pt

Definition at line 464 of file gsdrape.c.

References ATT_TOPO, gs_get_att_typbuff(), and viewcell_tri_interp().

Referenced by GS_draw_X().

◆ calc_norm()

int calc_norm	(	geosurf *	gs,
		int	drow,
		int	dcol,
		unsigned int	neighbors
	)

Calculate normals.

Need either four neighbors or two non-linear neighbors passed initial state of neighbors known from array position and data row & col

Parameters

gs	surface (geosurf)
drow	data row
dcol	data col
neighbors	neighbors id

Returns: 0 no normals; 1 on success

Definition at line 206 of file gs_norms.c.

References BM_get(), DRC2OFF, GET_MAPATT, NBOT, NLFT, NRGT, NTOP, and SET_NORM.

Referenced by gs_calc_normals().

◆ correct_twist()

void correct_twist ( Keylist * k )

Correct twist value.

Parameters

k	keyframe list

Definition at line 711 of file gk.c.

References key_node::fields, KF_TWIST, key_node::next, NULL, and t.

Referenced by gk_make_framesfromkeys(), and gk_make_linear_framesfromkeys().

◆ dir_to_slope_aspect()

void dir_to_slope_aspect	(	float *	dir,
		float *	slope,
		float *	aspect,
		int	degrees
	)

Converts a direction vector to slope and aspect angles.

Given a 3D direction vector, this function computes the slope and aspect angles corresponding to the vector. The aspect is the compass direction (azimuth) of the projection of the vector onto the XY plane, and the slope is the angle between the vector and the vertical axis (Z).

Parameters

[in]	dir	Pointer to an array of 3 floats representing the direction vector [dx, dy, dz].
[out]	slope	Pointer to a float where the computed slope angle will be stored (in radians or degrees).
[out]	aspect	Pointer to a float where the computed aspect angle will be stored (in radians or degrees).
[in]	degrees	If non-zero, the output angles are converted to degrees; otherwise, they are in radians.

The function handles edge cases where the direction vector is vertical or horizontal. Aspect is set to 0 if the vector has no horizontal component. Slope is negative for upward-pointing vectors, positive for downward.

Definition at line 776 of file gsd_objs.c.

References Pi, X, Y, and Z.

Referenced by gsd_3darrow(), and gsd_arrow().

◆ do_label_display()

void do_label_display	(	GLuint	fontbase,
		float *	lab_pos,
		const char *	txt
	)

Display label.

Parameters

fontbase	font-base
lab_pos	label position
txt	text string

Definition at line 97 of file gsd_fonts.c.

References X, and Y.

Referenced by gs_put_label(), and gsd_put_legend().

◆ free_data_buffs()

size_t free_data_buffs	(	dataset *	ds,
		int	typ
	)

Free data buffer.

Parameters

ds	pointer to dataset struct
typ	data type

Returns: freed size

Definition at line 393 of file gsds.c.

References ATTY_CHAR, ATTY_FLOAT, ATTY_INT, ATTY_MASK, ATTY_NULL, ATTY_SHORT, typbuff::bm, BM_destroy(), BM_get_map_size(), typbuff::cb, dataset::data_id, dataset::databuff, dataset::dims, typbuff::fb, free(), G_debug(), typbuff::ib, dataset::ndims, typbuff::nm, NULL, dataset::numbytes, and typbuff::sb.

Referenced by gsds_free_data_buff(), and gsds_free_datah().

◆ get_2key_neighbors()

double get_2key_neighbors	(	int	,
		float	,
		float	,
		int	,
		Keylist **	,
		Keylist **	,
		Keylist **
	)

◆ get_diag_intersects()

int get_diag_intersects	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		float *	dir
	)

Get diagonal intersects.

Colinear already eliminated

Parameters

	gs	surface (geosurf)
[in]	bgn	begin point
[in]	end	end point
	dir	? (unused)

Returns: number of intersects

Definition at line 1073 of file gsdrape.c.

References ATT_TOPO, DCOL2X, DRC2OFF, DROW2Y, EPSILON, GET_MAPATT, ISNODE, LERP, segs_intersect(), VCOL2X, VCOLS, VROW2Y, VROWS, VXRES, VYRES, X, X2VCOL, Y, Y2VROW, and Z.

◆ get_horz_intersects()

int get_horz_intersects	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		float *	dir
	)

Get horizontal intersects.

Parameters

	gs	surface (geosurf)
[in]	bgn	begin point
[in]	end	end point
[in]	dir

Returns: number of intersects

Definition at line 978 of file gsdrape.c.

References ATT_TOPO, DRC2OFF, EPSILON, GET_MAPATT, LERP, segs_intersect(), VCOLS, VROW2Y, VROWS, VXRES, X, X2VCOL, Y, Y2VROW, and Z.

◆ get_key_neighbors()

double get_key_neighbors	(	int	,
		double	,
		double	,
		int	,
		Keylist **	,
		Keylist **	,
		Keylist **	,
		Keylist **	,
		Keylist **	,
		double *	,
		double *
	)

◆ get_mapatt()

int get_mapatt	(	typbuff *	buff,
		int	offset,
		float *	att
	)

Get map attributes.

Parameters

	buff
[in]	offset
[out]	att

Returns: 0 on failure; 1 on success

Definition at line 31 of file gsget.c.

References BM_get(), typbuff::cb, typbuff::fb, typbuff::ib, typbuff::k, typbuff::nm, typbuff::sb, and typbuff::tfunc.

◆ get_txtdescender()

int get_txtdescender ( void )

Get text descender.

yorig ??

Is this defined somewhere ?

Returns: 2

Definition at line 71 of file gsd_fonts.c.

◆ get_txtxoffset()

int get_txtxoffset ( void )

Get text offset.

xorig ??

Is this defined somewhere ?

Returns: 0

Definition at line 85 of file gsd_fonts.c.

Referenced by gsd_put_legend().

◆ get_vert_intersects()

int get_vert_intersects	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		float *	dir
	)

ADD.

Todo:: For consistency, need to decide how last row & last column are displayed - would it look funny to always draw last row/col with finer resolution if necessary, or would it be better to only show full rows/cols?

Colinear already eliminated

Parameters

	gs	surface (geosurf)
[in]	bgn	begin point
[in]	end	end point
[in]	dir	direction

Returns

Definition at line 884 of file gsdrape.c.

References ATT_TOPO, DRC2OFF, EPSILON, GET_MAPATT, LERP, segs_intersect(), VCOL2X, VCOLS, VROWS, VYRES, X, X2VCOL, Y, Y2VROW, and Z.

◆ GK_add_key()

int GK_add_key	(	float	pos,
		unsigned long	fmask,
		int	force_replace,
		float	precis
	)

Add keyframe.

The pos value is the relative position in the animation for this particular keyframe - used to compare relative distance to neighboring keyframes, it can be any floating point value.

The fmask value can be any of the following or'd together:

KF_FROMX_MASK
KF_FROMY_MASK
KF_FROMZ_MASK
KF_FROM_MASK (KF_FROMX_MASK | KF_FROMY_MASK | KF_FROMZ_MASK)
KF_DIRX_MASK
KF_DIRY_MASK
KF_DIRZ_MASK
KF_DIR_MASK (KF_DIRX_MASK | KF_DIRY_MASK | KF_DIRZ_MASK)
KF_FOV_MASK
KF_TWIST_MASK
KF_ALL_MASK (KF_FROM_MASK | KF_DIR_MASK | KF_FOV_MASK | KF_TWIST_MASK)

Other fields will be added later.

The value precis and the boolean force_replace are used to determine if a keyframe should be considered to be at the same position as a pre-existing keyframe. e.g., if anykey.pos - newkey.pos <= precis, GK_add_key() will fail unless force_replace is TRUE.

Parameters

pos	position
fmask
force_replace
precis	precision value

Returns: 1 if key is added; -1 key not added

Definition at line 431 of file gk2.c.

References G_debug(), GK_update_frames(), GS_get_fov(), GS_get_from(), GS_get_twist(), GS_get_viewdir(), KF_DIRX, KF_DIRY, KF_DIRZ, KF_FOV, KF_FROMX, KF_FROMY, KF_FROMZ, KF_TWIST, malloc(), NULL, X, Y, and Z.

◆ GK_clear_keys()

void GK_clear_keys ( void )

Deletes all keyframes, resets field masks.

Doesn't change number of frames requested.

Definition at line 312 of file gk2.c.

References free(), gk_free_key(), and NULL.

◆ gk_copy_key()

Keylist * gk_copy_key ( Keylist * k )

Copy keyframes.

Parameters

k	source keyframes

Returns: pointer to Keylist struct (target)

Definition at line 45 of file gk.c.

References key_node::fieldmask, key_node::fields, G_malloc, KF_NUMFIELDS, key_node::look_ahead, NULL, and key_node::pos.

◆ GK_delete_key()

int GK_delete_key	(	float	pos,
		float	precis,
		int	justone
	)

Delete keyframe

The values pos and precis are used to determine which keyframes to delete. Any keyframes with their position within precis of pos will be deleted if justone is zero. If justone is non-zero, only the first (lowest pos) keyframe in the range will be deleted.

Parameters

pos	position
precis	precision
justone	delete only one keyframe

Returns: number of keys deleted.

Definition at line 369 of file gk2.c.

References free(), GK_update_frames(), key_node::next, and key_node::pos.

◆ GK_do_framestep()

void GK_do_framestep	(	int	step,
		int	render
	)

Moves the animation to frame number "step".

Step should be a value between 1 and the number of frames. If render is non-zero, calls draw_all.

Parameters

step	step value
render

Definition at line 487 of file gk2.c.

References gk_follow_frames().

◆ gk_draw_path()

int gk_draw_path	(	Viewnode *	views,
		int	steps,
		Keylist *	keys
	)

Draw path.

Parameters

views	Viewnode struct
steps	step value
keys	keyframe list

Returns: 0 on failure; 1 on success

Definition at line 749 of file gk.c.

References CM_COLOR, view_node::fields, key_node::fields, GS_background_color(), GS_default_draw_color(), GS_get_from(), GS_get_longdim(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_endline(), gsd_linewidth(), gsd_vert_func(), gsd_x(), gsd_zwritemask(), KF_FROMX, key_node::next, and NULL.

Referenced by gk_follow_frames(), GK_set_tension(), and GK_show_path().

◆ gk_follow_frames()

void gk_follow_frames	(	Viewnode *	view,
		int	numsteps,
		Keylist *	keys,
		int	step,
		int	onestep,
		int	render,
		unsigned long	mode
	)

Checks key masks.

Because if they're masked up until the current position, pre-existing (or current) field should be used.

Parameters

view	pointer to Viewmode struct
numsteps	number of steps
keys	list of keyframes
step	step value
onestep
render
mode

Definition at line 141 of file gk.c.

References view_node::fields, FM_LABEL, FM_PATH, FM_SITE, FM_VECT, FM_VOL, G_debug(), gk_draw_path(), gk_get_mask_sofar(), GP_alldraw_site(), GS_alldraw_cplane_fences(), GS_alldraw_surf(), GS_alldraw_wire(), GS_background_color(), GS_clear(), GS_done_draw(), GS_draw_all_list(), GS_get_from(), GS_get_viewdir(), GS_getlight_position(), GS_moveto(), GS_ready_draw(), GS_set_draw(), GS_set_fov(), GS_set_twist(), GS_set_viewdir(), GS_setlight_position(), GSD_BACK, GSD_FRONT, GV_alldraw_vect(), GVL_alldraw_vol(), KF_DIRX, KF_DIRX_MASK, KF_DIRY, KF_DIRY_MASK, KF_DIRZ, KF_DIRZ_MASK, KF_FOV, KF_FOV_MASK, KF_FROMX, KF_FROMX_MASK, KF_FROMY, KF_FROMY_MASK, KF_FROMZ, KF_FROMZ_MASK, KF_TWIST, KF_TWIST_MASK, X, x, Y, and Z.

Referenced by GK_do_framestep().

◆ gk_free_key()

void gk_free_key ( Keylist * ok )

Free keyframe list.

Parameters

ok	pointer to Keylist struct

Definition at line 271 of file gk.c.

References G_free(), and key_node::next.

Referenced by GK_clear_keys().

◆ gk_get_mask_sofar()

unsigned long gk_get_mask_sofar	(	float	time,
		Keylist *	keys
	)

Get mask value.

Get begin & end pos, AND all masks in keys <= pos

Time must be between 0.0 & 1.0

Parameters

time	timestamp
keys	list of keyframes

Returns: mask value

Definition at line 79 of file gk.c.

References key_node::fieldmask, key_node::next, and key_node::pos.

Referenced by gk_follow_frames().

◆ gk_make_framesfromkeys()

Viewnode * gk_make_framesfromkeys	(	Keylist *	keys,
		int	keysteps,
		int	newsteps,
		int	loop,
		float	t
	)

Generate viewnode from keyframes.

Here we use a cardinal cubic spline

Parameters

keys	list of keyframes
keysteps	keyframe step
newsteps	new step value
loop	loop indicator
t

Returns: pointer to Viewnode; NULL on failure

Definition at line 301 of file gk.c.

References _, correct_twist(), view_node::fields, key_node::fields, G_free(), G_malloc, G_warning(), get_key_neighbors(), gk_viable_keys_for_mask(), KF_NUMFIELDS, lin_interp(), key_node::next, NULL, key_node::pos, t, and x.

Referenced by GK_update_frames().

◆ gk_make_linear_framesfromkeys()

Viewnode * gk_make_linear_framesfromkeys	(	Keylist *	keys,
		int	keysteps,
		int	newsteps,
		int	loop
	)

Generate viewnode from keyframe list (linear interpolation)

Here we use linear interpolation. Loop variable isn't used, but left in for use in possible "linear interp with smoothing" version.

Parameters

keys	keyframe list
keysteps	step value
newsteps	new step value
loop	loop indicator

Returns: pointer to viewnode struct; NULL on failure

Definition at line 611 of file gk.c.

References _, correct_twist(), view_node::fields, G_free(), G_malloc, G_warning(), get_2key_neighbors(), gk_viable_keys_for_mask(), KF_NUMFIELDS, lin_interp(), key_node::next, NULL, and key_node::pos.

Referenced by GK_update_frames().

◆ GK_move_key()

int GK_move_key	(	float	oldpos,
		float	precis,
		float	newpos
	)

Move keyframe.

Precis works as in other functions - to identify keyframe to move. Only the first keyframe in the precis range will be moved.

Parameters

oldpos	old position
precis	precision value
newpos	new position

Returns: number of keys moved (1 or 0)

Definition at line 338 of file gk2.c.

References GK_update_frames(), key_node::next, and key_node::pos.

◆ GK_print_keys()

void GK_print_keys ( const char * name )

Print keyframe info.

Parameters

name filename

Definition at line 209 of file gk2.c.

References _, key_node::fields, G_fatal_error(), KF_DIRX, KF_DIRY, KF_DIRZ, KF_FOV, KF_FROMX, KF_FROMY, KF_FROMZ, KF_TWIST, name, key_node::next, NULL, and key_node::pos.

◆ GK_set_interpmode()

int GK_set_interpmode ( int mode )

Set interpolation mode.

Parameters

mode	interpolation mode (KF_LINEAR or KF_SPLINE)

Returns: 1 on success; -1 on error (invalid interpolation mode)

Definition at line 140 of file gk2.c.

References KF_LEGAL_MODE.

◆ GK_set_numsteps()

void GK_set_numsteps ( int newsteps )

Set the number of frames to be interpolated from keyframes.

Parameters

newsteps number of frames

Definition at line 299 of file gk2.c.

References GK_update_frames().

◆ GK_set_tension()

void GK_set_tension ( float tens )

Set value for tension when interpmode is KF_SPLINE.

Parameters

tens	value tens should be between 0.0; 1.0.

Definition at line 155 of file gk2.c.

References gk_draw_path(), GK_update_frames(), GS_alldraw_wire(), GS_background_color(), GS_clear(), GS_done_draw(), GS_ready_draw(), GS_set_draw(), and GSD_BACK.

◆ GK_show_list()

void GK_show_list ( int flag )

Show list.

Parameters

flag

Definition at line 609 of file gk2.c.

References FM_LABEL, and GS_draw_all_list().

◆ GK_show_path()

void GK_show_path ( int flag )

Draw the current path.

Parameters

flag

Definition at line 503 of file gk2.c.

References FM_PATH, gk_draw_path(), GS_done_draw(), GS_ready_draw(), GS_set_draw(), and GSD_FRONT.

◆ GK_show_site()

void GK_show_site ( int flag )

Show point sets.

Parameters

flag

Definition at line 555 of file gk2.c.

References FM_SITE, GP_alldraw_site(), GS_done_draw(), GS_ready_draw(), GS_set_draw(), and GSD_FRONT.

◆ GK_show_vect()

void GK_show_vect ( int flag )

Show vector sets.

Parameters

flag

Definition at line 529 of file gk2.c.

References FM_VECT, GS_done_draw(), GS_ready_draw(), GS_set_draw(), GSD_FRONT, and GV_alldraw_vect().

◆ GK_show_vol()

void GK_show_vol ( int flag )

Show volumes.

Parameters

flag

Definition at line 582 of file gk2.c.

References FM_VOL, GS_done_draw(), GS_ready_draw(), GS_set_draw(), GSD_FRONT, and GVL_alldraw_vol().

◆ GK_showtension_start()

void GK_showtension_start ( void )

Definition at line 175 of file gk2.c.

◆ GK_showtension_stop()

void GK_showtension_stop ( void )

Show tension stop ?

Use GK_showtension_start/GK_update_tension/GK_showtension_stop to initialize and stop multi-view display of path when changing tension.

Definition at line 187 of file gk2.c.

◆ GK_update_frames()

void GK_update_frames ( void )

Recalculate path using the current number of frames requested.

Call after changing number of frames or when Keyframes change.

Definition at line 245 of file gk2.c.

References _, key_node::fields, free(), G_warning(), gk_make_framesfromkeys(), gk_make_linear_framesfromkeys(), KF_FROMX, KF_FROMY, KF_FROMZ, KF_LINEAR, NULL, and key_node::pos.

Referenced by GK_add_key(), GK_delete_key(), GK_move_key(), GK_set_numsteps(), GK_set_tension(), and GK_update_tension().

◆ GK_update_tension()

void GK_update_tension ( void )

Update tension.

Definition at line 195 of file gk2.c.

References GK_update_frames().

◆ gk_viable_keys_for_mask()

int gk_viable_keys_for_mask	(	unsigned long	mask,
		Keylist *	keys,
		Keylist **	keyret
	)

ADD.

Parameters

	mask	mask value
	keys	list of keyframes
[out]	keyret	output list of keyframes

Returns: number of output keyframes

Definition at line 113 of file gk.c.

References key_node::fieldmask, and key_node::next.

Referenced by gk_make_framesfromkeys(), and gk_make_linear_framesfromkeys().

◆ gln_num_points()

int gln_num_points ( geoline * gln )

Get number of line vertices.

Parameters

gln	line (geoline)

Returns: number of vertices

Definition at line 197 of file gv_quick.c.

Referenced by gv_decimate_lines(), and gv_num_points().

◆ GP_alldraw_site()

void GP_alldraw_site ( void )

Draw all available point sets.

Definition at line 615 of file gp2.c.

References GP_draw_site().

Referenced by gk_follow_frames(), GK_show_site(), and Nviz_draw_quick().

◆ GP_attmode_color()

int GP_attmode_color	(	int	,
		const char *
	)

◆ GP_attmode_none()

int GP_attmode_none ( int )

◆ GP_delete_site()

int GP_delete_site ( int id )

Delete registered point set.

Parameters

id	point set id

Returns: 1 on success; -1 on error (point sets not available)

Definition at line 132 of file gp2.c.

References G_debug(), gp_delete_site(), and GP_site_exists().

Referenced by Nviz_new_map_obj().

◆ gp_delete_site()

void gp_delete_site ( int id )

Delete point set and remove from list.

Parameters

id	point set id

Definition at line 238 of file gp.c.

References G_debug(), gp_free_site(), and gp_get_site().

Referenced by GP_delete_site().

◆ GP_draw_site()

void GP_draw_site ( int id )

Draw point set.

Parameters

id	point set id

Definition at line 581 of file gp2.c.

References G_debug(), gp_get_site(), gpd_2dsite(), gpd_3dsite(), GS_get_region(), and gs_get_surf().

Referenced by GP_alldraw_site(), and Nviz_draw_all_site().

◆ gp_free_site()

int gp_free_site ( geosite * fp )

Free allocated geosite struct.

Parameters

fp	pointer to geosite struct

Returns: 1 on success; -1 on failure

Definition at line 261 of file gp.c.

References G_debug(), G_free(), gp_free_sitemem(), g_site::gsite_id, g_site::next, and NULL.

Referenced by gp_delete_site().

◆ gp_free_sitemem()

void gp_free_sitemem ( geosite * fp )

Free geosite (lower level)

Parameters

fp	pointer to geosite struct

Definition at line 310 of file gp.c.

References g_vect_style_thematic::color_column, g_site::filename, G_free(), g_site::hstyle, g_site::n_sites, NULL, g_site::points, g_vect_style_thematic::size_column, g_site::style, g_vect_style_thematic::symbol_column, g_site::tstyle, and g_vect_style_thematic::width_column.

Referenced by gp_free_site(), and GP_load_site().

◆ GP_Get_ClientData()

void * GP_Get_ClientData ( int id )

Get client data.

Parameters

id	point set id

Returns: pointer to client data; NULL on error

Definition at line 657 of file gp2.c.

References gp_get_site(), and NULL.

◆ gp_get_last_site()

geosite * gp_get_last_site ( void )

Get last point set.

Returns: pointer to geosite struct; NULL if no point set is available

Definition at line 95 of file gp.c.

References G_debug(), and NULL.

Referenced by gp_get_new_site().

◆ gp_get_new_site()

geosite * gp_get_new_site ( void )

Create new geosite instance and add it to list.

Returns: pointer to geosite struct; NULL on error

Definition at line 119 of file gp.c.

References FIRST_SITE_ID, G_debug(), G_malloc, G_zero(), gp_get_last_site(), g_site::gsite_id, g_site::hstyle, NULL, and g_site::style.

Referenced by GP_new_site().

◆ gp_get_prev_site()

geosite * gp_get_prev_site ( int id )

Get previous geosite struct from list.

Parameters

id	point set id

Returns: pointer to geosite struct; NULL on failure

Definition at line 56 of file gp.c.

References G_debug(), and NULL.

◆ gp_get_site()

geosite * gp_get_site ( int id )

Get geosite struct.

Parameters

id	point set id

Returns: pointer to geosite struct; NULL on failure

Definition at line 33 of file gp.c.

References G_debug(), and NULL.

Referenced by gp_delete_site(), GP_draw_site(), GP_Get_ClientData(), GP_get_sitename(), GP_get_style(), GP_get_trans(), GP_get_zmode(), GP_load_site(), GP_select_surf(), GP_Set_ClientData(), GP_set_style(), GP_set_style_thematic(), GP_set_trans(), GP_set_zmode(), GP_site_exists(), GP_surf_is_selected(), GP_unselect_surf(), GP_unset_style_thematic(), and Nviz_set_vpoint_attr_default().

◆ GP_get_site_list()

int * GP_get_site_list ( int * numsites )

Get list of point sets.

Must freed when no longer needed!

Parameters

numsites number of point sets

Returns: pointer to list of points sets; NULL on error

Definition at line 102 of file gp2.c.

References G_malloc, and NULL.

Referenced by Nviz_draw_all_site().

◆ GP_get_sitename()

int GP_get_sitename	(	int	id,
		char **	filename
	)

Get point set filename.

Note: char array is allocated by G_store()

Parameters

	id	point set id
[out]	filename	point set filename

Returns: -1 on error (point set not found); 1 on success

Definition at line 209 of file gp2.c.

References G_debug(), G_store(), gp_get_site(), and NULL.

◆ GP_get_style()

int GP_get_style	(	int	id,
		int *	color,
		int *	width,
		float *	size,
		int *	symbol
	)

Get point set style.

Parameters

id	point set id
color
width
size
symbol

Returns: 1 on success; -1 on error (point set not found)

Definition at line 236 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

◆ GP_get_trans()

void GP_get_trans	(	int	id,
		float *	xtrans,
		float *	ytrans,
		float *	ztrans
	)

Get transformation params.

Parameters

	id	point set id
[out]	xtrans,ytrans,ztrans	x/y/z values

Definition at line 461 of file gp2.c.

References G_debug(), and gp_get_site().

◆ GP_get_zmode()

int GP_get_zmode	(	int	id,
		int *	use_z
	)

Get z-mode.

Todo:: Who's using this?

Parameters

	id	point set id
[out]	use_z	non-zero code to use z

Returns: -1 on error (invalid point set id); 1 on success

Definition at line 418 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

◆ gp_init_site()

int gp_init_site ( geosite * gp )

Initialize geosite struct.

Todo:: Currently does nothing

Parameters

gp	pointer to geosite struct

Returns: -1 on failure; 0 on success

Definition at line 222 of file gp.c.

References G_debug().

◆ GP_load_site()

int GP_load_site	(	int	id,
		const char *	filename
	)

Load point set from file.

Check to see if handle already loaded, if so - free before loading new for now, always load to memory.

Todo:: load file handle & ready for reading instead of using memory

Parameters

id	point set id
filename	point set filename

Returns: -1 on error; 1 on success

Definition at line 173 of file gp2.c.

References G_debug(), G_store(), gp_free_sitemem(), gp_get_site(), Gp_load_sites(), and NULL.

Referenced by Nviz_new_map_obj().

◆ Gp_load_sites()

geopoint * Gp_load_sites	(	const char *	name,
		int *	nsites,
		int *	has_z
	)

Load to points to memory.

The other alternative may be to load to a tmp file.

Parameters

	name	name of vector map to be loaded
[out]	nsites	number of loaded points
[out]	has_z	2D or 3D points data loaded?

Returns: pointer to geopoint struct (array); NULL on failure

Definition at line 45 of file gp3.c.

References _, Cell_head::east, G_debug(), G_fatal_error(), G_find_vector2(), G_free(), G_fully_qualified_name(), G_get_set_window(), G_malloc, G_message(), G_warning(), G_zero(), GV_POINTS, name, g_point::next, Cell_head::north, NULL, PORT_DOUBLE_MAX, Cell_head::south, Cell_head::top, Vect_close(), Vect_is_3d(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_open_old(), Vect_read_next_line(), Vect_reset_cats(), Vect_set_constraint_region(), Vect_set_open_level(), Cell_head::west, X, line_pnts::x, Y, line_pnts::y, Z, and line_pnts::z.

Referenced by GP_load_site().

◆ Gp_load_sites_thematic()

int Gp_load_sites_thematic	(	geosite *	gp,
		struct Colors *	colors
	)

Load styles for geopoints based on thematic mapping.

Parameters

gp	pointer to geosite structure
colors	pointer to Colors structure or NULL

Returns: number of points defined by thematic mapping; -1 on error

Definition at line 181 of file gp3.c.

References _, BLU_MASK, db_close_database_shutdown_driver(), db_get_value_int(), db_get_value_string(), db_select_value(), db_start_driver_open_database(), G_fatal_error(), G_find_vector2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_str_to_color(), G_warning(), G_zero(), GP_str_to_marker(), GRN_MASK, NULL, Rast_get_c_color(), RED_MASK, Vect_cat_get(), Vect_destroy_field_info(), Vect_get_field(), Vect_open_old(), and Vect_set_open_level().

Referenced by GP_set_style_thematic().

◆ GP_new_site()

int GP_new_site ( void )

Create new point set.

Returns: point set id; -1 on error (number of point sets exceeded)

Definition at line 64 of file gp2.c.

References G_debug(), gp_get_new_site(), gp_set_defaults(), g_site::gsite_id, and MAX_SITES.

Referenced by Nviz_new_map_obj().

◆ GP_num_sites()

int GP_num_sites ( void )

Get number of loaded point sets.

Returns: number of point sets

Definition at line 87 of file gp2.c.

References gp_num_sites().

Referenced by Nviz_new_map_obj().

◆ gp_num_sites()

int gp_num_sites ( void )

Get number of loaded point sets.

Returns: number of point sets

Definition at line 76 of file gp.c.

References G_debug().

Referenced by GP_num_sites().

◆ GP_select_surf()

int GP_select_surf	(	int	hp,
		int	hs
	)

Select surface for given point set.

Parameters

hp	point set id
hs	surface id

Returns: 1 surface selected; -1 on error

Definition at line 488 of file gp2.c.

References G_debug(), gp_get_site(), GP_surf_is_selected(), and GS_surf_exists().

Referenced by Nviz_new_map_obj().

◆ GP_Set_ClientData()

int GP_Set_ClientData	(	int	id,
		void *	clientd
	)

Set client data.

Parameters

id	point set id
clientd	client data

Returns: 1 on success; -1 on error (invalid point set id)

Definition at line 635 of file gp2.c.

References gp_get_site().

◆ Gp_set_color()

int Gp_set_color	(	const char *	,
		geopoint *
	)

◆ gp_set_defaults()

int gp_set_defaults ( geosite * gp )

Set default value for geosite struct.

Parameters

gp	pointer to geosite struct

Returns: 1 on success; -1 on failure

Definition at line 189 of file gp.c.

References G_debug(), GS_get_longdim(), NULL, and ST_X.

Referenced by GP_new_site().

◆ gp_set_drapesurfs()

void gp_set_drapesurfs	(	geosite *	,
		int *	,
		int
	)

◆ GP_set_style()

int GP_set_style	(	int	id,
		int	color,
		int	width,
		float	size,
		int	symbol
	)

Set point style.

Supported icon symbols (markers):

ST_X
ST_BOX
ST_SPHERE
ST_CUBE
ST_DIAMOND
ST_DEC_TREE
ST_CON_TREE
ST_ASTER
ST_GYRO
ST_HISTOGRAM

Parameters

id	point set id
color	icon color
width	icon line width
size	icon size
symbol	icon symbol

Returns: 1 on success; -1 on error (point set not found)

Definition at line 278 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

Referenced by Nviz_new_map_obj().

◆ GP_set_style_thematic()

int GP_set_style_thematic	(	int	id,
		int	layer,
		const char *	color,
		const char *	width,
		const char *	size,
		const char *	symbol,
		struct Colors *	color_rules
	)

Set point set style for thematic mapping.

Updates also style for each geopoint.

Parameters

id	point set id
layer	layer number for thematic mapping (-1 for undefined)
color	icon color column name
width	icon line width column name
size	icon size column name
symbol	icon symbol column name
color_rules	pointer to Colors structure or NULL

Returns: 1 on success; -1 on error (point set not found)

Definition at line 313 of file gp2.c.

References G_debug(), G_malloc, G_store(), G_zero(), gp_get_site(), Gp_load_sites_thematic(), and NULL.

◆ GP_set_trans()

void GP_set_trans	(	int	id,
		float	xtrans,
		float	ytrans,
		float	ztrans
	)

Set transformation params.

Parameters

id	point set id
xtrans,ytrans,ztrans	x/y/z values

Definition at line 438 of file gp2.c.

References G_debug(), and gp_get_site().

◆ GP_set_zmode()

int GP_set_zmode	(	int	id,
		int	use_z
	)

Set z mode for point set.

Parameters

id	point set id
use_z	TRUE to use z-coordinaces when vector map is 3D

Returns: 1 on success; 0 vector map is not 3D; -1 on error (invalid point set id)

Definition at line 384 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

◆ GP_site_exists()

int GP_site_exists ( int id )

Check if point set exists.

Parameters

id	point set id

Returns: 1 found; 0 not found

Definition at line 37 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

Referenced by GP_delete_site().

◆ GP_str_to_marker()

int GP_str_to_marker ( const char * str )

Determine point marker symbol for string.

Supported markers:

ST_X
ST_BOX
ST_SPHERE
ST_CUBE
ST_DIAMOND
ST_DEC_TREE
ST_CON_TREE
ST_ASTER
ST_GYRO
ST_HISTOGRAM

Parameters

str	string buffer

Returns: marker code (default: ST_SPHERE)

Definition at line 688 of file gp2.c.

References _, G_warning(), ST_ASTER, ST_BOX, ST_CON_TREE, ST_CUBE, ST_DEC_TREE, ST_DIAMOND, ST_GYRO, ST_HISTOGRAM, ST_SPHERE, and ST_X.

Referenced by Gp_load_sites_thematic().

◆ GP_surf_is_selected()

int GP_surf_is_selected	(	int	hp,
		int	hs
	)

Check if surface is selected.

Parameters

hp	point set id
hs	surface id

Returns: 1 selected; 0 not selected

Definition at line 556 of file gp2.c.

References G_debug(), and gp_get_site().

Referenced by GP_select_surf(), and GP_unselect_surf().

◆ GP_unselect_surf()

int GP_unselect_surf	(	int	hp,
		int	hs
	)

Unselect surface.

Parameters

hp	point set id
hs	surface id

Returns: 1 surface unselected; -1 on error

Definition at line 518 of file gp2.c.

References G_debug(), gp_get_site(), and GP_surf_is_selected().

◆ GP_unset_style_thematic()

int GP_unset_style_thematic ( int id )

Make style for thematic mapping inactive.

Parameters

id	point set id

Returns: 1 on success; -1 on error (point set not found)

Definition at line 356 of file gp2.c.

References G_debug(), gp_get_site(), and NULL.

◆ gp_update_drapesurfs()

void gp_update_drapesurfs ( void )

Update drape surfaces.

Call after surface is deleted

Definition at line 157 of file gp.c.

References gs_get_surf(), and NULL.

◆ gpd_2dsite()

int gpd_2dsite	(	geosite *	gp,
		geosurf *	gs,
		int	do_fast
	)

Draw 2D point set.

Need to think about translations - If user translates surface, sites should automatically go with it, but translating sites should translate it relative to surface on which it's displayed

Handling mask checking here

Todo:: prevent scaling by 0

Parameters

gp	site (geosite)
gs	surface (geosurf)
do_fast	(unused)

Returns: 0 on failure; 1 on success

Definition at line 215 of file gpd.c.

References ATT_TOPO, CHK_FREQ, CONST_ATT, gpd_obj(), GS_check_cancel(), gs_get_att_src(), gs_get_att_typbuff(), gs_point_in_region(), gs_point_is_masked(), gs_update_curmask(), gsd_checkpoint(), gsd_do_scale(), gsd_getwindow(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), MAP_ATT, NULL, viewcell_tri_interp(), X, Y, and Z.

Referenced by GP_draw_site().

◆ gpd_3dsite()

int gpd_3dsite	(	geosite *	gp,
		float	xo,
		float	yo,
		int	do_fast
	)

Draw 3D point set.

Parameters

gp	site (geosite)
xo,yo
do_fast	(unused)

Returns: 0 on success; 1 on failure

Definition at line 312 of file gpd.c.

References CHK_FREQ, gpd_obj(), GS_check_cancel(), GS_global_exag(), gsd_checkpoint(), gsd_do_scale(), gsd_getwindow(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), NULL, X, Y, and Z.

Referenced by GP_draw_site().

◆ gpd_obj()

void gpd_obj	(	geosurf *	gs,
		gvstyle *	style,
		Point3	pt
	)

Draw point representing object.

Do normal transforms before calling

Note gs: NULL if 3d obj or const elev surface

Parameters

gs	surface (geosurf)
style	object displaying style (highlighted or not)
pt	3d point (Point3)

Definition at line 70 of file gpd.c.

References CM_COLOR, CM_DIFFUSE, g_vect_style::color, GS_global_exag(), GS_v3eq(), gsd_box(), gsd_color_func(), gsd_colormode(), gsd_cube(), gsd_diamond(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_gyro(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_sphere(), gsd_x(), g_vect_style::size, ST_ASTER, ST_BOX, ST_CUBE, ST_DIAMOND, ST_GYRO, ST_HISTOGRAM, ST_SPHERE, ST_X, g_vect_style::symbol, and Z.

Referenced by gpd_2dsite(), gpd_3dsite(), and GS_draw_X().

◆ GS_alldraw_cplane_fences()

void GS_alldraw_cplane_fences ( void )

Draw all cplace fences ?

Definition at line 3194 of file gs2.c.

References GS_draw_cplane_fence(), gsd_get_cplanes_state(), and MAX_CPLANES.

Referenced by gk_follow_frames().

◆ GS_alldraw_surf()

void GS_alldraw_surf ( void )

Draw all surfaces.

Definition at line 1937 of file gs2.c.

References GS_draw_surf().

Referenced by gk_follow_frames().

◆ GS_alldraw_wire()

void GS_alldraw_wire ( void )

Draw all wires.

Overrides draw_mode for fast display

Definition at line 1920 of file gs2.c.

References gs_get_surf(), and gsd_wire_surf().

Referenced by gk_follow_frames(), GK_set_tension(), Gs_load_3dview(), Nviz_draw_quick(), and Nviz_resize_window().

◆ gs_att_is_set()

int gs_att_is_set	(	geosurf *	,
		IFLAG
	)

Referenced by GS_transp_is_set().

◆ GS_background_color()

unsigned int GS_background_color ( void )

Get background color.

Returns: color value

Definition at line 2452 of file gs2.c.

Referenced by gk_draw_path(), gk_follow_frames(), and GK_set_tension().

◆ Gs_build_256lookup()

int Gs_build_256lookup	(	const char *	filename,
		int *	buff
	)

Build color table (256)

Calling function must have already allocated space in buff for range of data (256 for now) - simply calls get_color for each cat in color range

Parameters

	filename	raster map name
[out]	buff	data buffer

Returns: 1 on success; 0 on failure

Definition at line 576 of file gs3.c.

References _, b, g, G_debug(), G_find_raster2(), G_warning(), G_zero(), max, min, NO_DATA_COL, r, Rast_get_c_color_range(), Rast_lookup_c_colors(), and Rast_read_colors().

Referenced by GS_load_att_map().

◆ gs_calc_normals()

int gs_calc_normals ( geosurf * gs )

Calculate normals.

OPTIMIZED for constant dy & dx

The norm array is always the same size, but diff resolutions force resampled data points to have their normals recalculated, then only those norms are passed to n3f during drawing. Norms are converted to a packed unsigned int for storage, must be converted back at time of use.

Todo:: fix to correctly calculate norms when mapped to sphere!

Uses the previous and next cells (when available) for normal calculations to produce smoother normals

Parameters

gs	surface (geosurf)

Returns: 1 on success; 0 on failure

Definition at line 124 of file gs_norms.c.

References calc_norm(), G_debug(), gs_update_curmask(), init_vars(), NALL, NBL, NBOT, NBR, NLFT, NRGT, NTL, NTOP, NTR, VCOLS, and VROWS.

Referenced by GS_get_norm_at_xy(), GS_update_normals(), gsd_coarse_surf_map(), and gsd_surf().

◆ GS_check_cancel()

int GS_check_cancel ( void )

Check for cancel.

Returns: code

Definition at line 30 of file gsx.c.

References Cxl_func.

Referenced by gpd_2dsite(), gpd_3dsite(), gsd_norm_arrows(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvd_vect(), and gvld_isosurf().

◆ GS_clear()

void GS_clear ( int col )

Clear view.

Parameters

col	color value

Definition at line 3417 of file gs2.c.

References G_debug(), and gsd_flush().

Referenced by gk_follow_frames(), GK_set_tension(), Nviz_draw_all(), and Nviz_draw_quick().

◆ gs_clip_segment()

int gs_clip_segment	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		float *	region
	)

Clip segment.

Todo:: to use fast clipping and move to gs.c

Parameters

gs	surface
bgn	begin point
end	end point
region	region settings

Returns: 1 segment inside region; 0 segment outside region

Definition at line 40 of file gvd.c.

References VCOL2X, VCOLS, VROW2Y, VROWS, X, and Y.

Referenced by gvd_vect().

◆ GS_coordpair_repeats()

int GS_coordpair_repeats	(	float *	p1,
		float *	p2,
		int	nhist
	)

ADD.

Initialize by calling with a number nhist to represent number of previous entries to check, then call with zero as nhist

Parameters

[in]	p1	first point
[in]	p2	second point
[in]	nhist	?

Returns: -1 on error; -2; 1; 9

Definition at line 440 of file gs_util.c.

References G_free(), G_malloc, and NULL.

Referenced by GS_draw_flowline_at_xy().

◆ GS_default_draw_color()

unsigned int GS_default_draw_color ( void )

Get default draw color.

Returns: color value

Definition at line 2439 of file gs2.c.

References G_debug().

Referenced by gk_draw_path(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), and gsd_draw_cplane().

◆ GS_delete_list()

void GS_delete_list ( GLuint list_id )

Delete pre-defined list.

Parameters

list_id list id

Definition at line 886 of file gs2.c.

References gsd_deletelist().

◆ gs_delete_surf()

void gs_delete_surf ( int id )

Remove geosurf struct from list.

Parameters

id	surface id

Definition at line 463 of file gs.c.

References G_debug(), gs_free_surf(), and gs_get_surf().

Referenced by GS_delete_surface().

◆ GS_delete_surface()

int GS_delete_surface ( int id )

Delete surface.

Parameters

id	surface id

Returns: 1 on success; -1 on error

Definition at line 1559 of file gs2.c.

References FALSE, G_debug(), gs_delete_surf(), GS_surf_exists(), gv_update_drapesurfs(), and TRUE.

◆ Gs_distance()

double Gs_distance	(	double *	from,
		double *	to
	)

Calculates distance in METERS between two points in current projection (2D)

Uses G_distance().

Parameters

[in]	from	'from' point (X, Y)
[in]	to	'to' point (X, Y)

Returns: distance

Definition at line 79 of file gs3.c.

References G_begin_distance_calculations(), and G_distance().

Referenced by GS_geodistance().

◆ GS_distance()

float GS_distance	(	float *	from,
		float *	to
	)

Calculate distance.

Parameters

[in]	from	'from' point (X,Y,Z)
[in]	to	'to' point (X,Y,Z)

Returns: distance

Definition at line 141 of file gs_util.c.

References X, x, Y, and Z.

Referenced by gs_distance_onsurf(), GS_get_selected_point_on_surface(), GS_look_here(), gs_los_intersect1(), gs_setlos_enterdata(), gsd_zup_twist(), gv_line_length(), and Nviz_set_cplane_here().

◆ gs_distance_onsurf()

int gs_distance_onsurf	(	geosurf *	gs,
		float *	p1,
		float *	p2,
		float *	dist,
		int	use_exag
	)

Calculate distance on surface.

Parameters

	gs	pointer to geosurf struct
	p1	from point
	p2	to point
[out]	dist	distance
	use_exag	use exag for calculation

Returns: 0 on error (points not in region); 1 on success

Definition at line 1414 of file gs.c.

References GS_distance(), GS_global_exag(), gsdrape_get_segments(), in_vregion(), NULL, and Z.

Referenced by GS_get_distance_alongsurf().

◆ GS_done_draw()

void GS_done_draw ( void )

Draw done, swap buffers.

Definition at line 2501 of file gs2.c.

References G_debug(), GSD_BACK, gsd_flush(), and gsd_swapbuffers().

Referenced by gk_follow_frames(), GK_set_tension(), GK_show_path(), GK_show_site(), GK_show_vect(), GK_show_vol(), gsd_end_legend_viewport(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_north_arrow(), gsd_scalebar(), gsd_scalebar_v2(), Nviz_draw_all(), Nviz_draw_all_site(), Nviz_draw_all_vect(), Nviz_draw_all_vol(), Nviz_draw_image(), Nviz_draw_model(), Nviz_draw_quick(), and Nviz_resize_window().

◆ GS_draw_all_list()

void GS_draw_all_list ( void )

Draw all glLists.

Uses glFlush() to ensure all drawing is complete before returning

Definition at line 874 of file gs2.c.

References gsd_calllists().

Referenced by gk_follow_frames(), and GK_show_list().

◆ GS_draw_cplane()

void GS_draw_cplane ( int num )

Draw cplace.

Parameters

num cplace id

Definition at line 3147 of file gs2.c.

References gs_getall_surfaces(), gs_num_surfaces(), gsd_draw_cplane(), gsd_draw_cplane_fence(), and MAX_SURFS.

◆ GS_draw_cplane_fence()

int GS_draw_cplane_fence	(	int	hs1,
		int	hs2,
		int	num
	)

Draw cplace fence ?

Parameters

hs1,hs2
num	cplane id

Returns: 0 on error; 1 on success

Definition at line 3174 of file gs2.c.

References gs_get_surf(), gsd_draw_cplane_fence(), and NULL.

Referenced by GS_alldraw_cplane_fences(), and Nviz_draw_all_surf().

◆ GS_draw_flowline_at_xy()

void GS_draw_flowline_at_xy	(	int	id,
		float	x,
		float	y
	)

Draw flow-line on surace.

This is slow - should be moved to gs_ but GS_ good for testing and useful for app programmer

Parameters

id	surface id
x,y	coordinates of flow-line

Definition at line 753 of file gs2.c.

References G_debug(), GS_coordpair_repeats(), GS_draw_nline_onsurf(), GS_get_norm_at_xy(), gs_get_surf(), GS_v2norm(), VXRES, VYRES, X, x, Y, and Z.

◆ GS_draw_fringe()

void GS_draw_fringe	(	int	id,
		unsigned long	clr,
		float	elev,
		int *	where
	)

Draw fringe around data (surface) at selected corners.

Parameters

id	surface id
clr	color
elev	elevation value
where	nw/ne/sw/se edges - 0 (turn off) 1 (turn on)

Definition at line 820 of file gs2.c.

References G_debug(), gs_get_surf(), and gsd_display_fringe().

Referenced by Nviz_draw_all(), and Nviz_draw_fringe().

◆ GS_draw_legend()

int GS_draw_legend	(	const char *	name,
		GLuint	fontbase,
		int	size,
		int *	flags,
		float *	range,
		int *	pt
	)

Draw legend.

Todo:: add legend from list option make font loading more flexible

Parameters

name	legend name
fontbase	font-base
size	?
flags	legend flags
range	values range
pt	?

Definition at line 843 of file gs2.c.

References gsd_put_legend(), and name.

◆ GS_draw_lighting_model()

void GS_draw_lighting_model ( void )

Draw lighting model.

Just turn off any cutting planes and draw it just outside near clipping plane, since lighting is infinite now

Definition at line 936 of file gs2.c.

References CM_DIFFUSE, DM_GOURAUD, GS_get_modelposition(), GS_v3eq(), gsd_backface(), gsd_colormode(), gsd_cplane_off(), gsd_cplane_on(), gsd_drawsphere(), gsd_flush(), gsd_get_cplanes_state(), gsd_popmatrix(), gsd_pushmatrix(), gsd_shademodel(), gsd_zwritemask(), and MAX_CPLANES.

Referenced by Nviz_draw_model().

◆ GS_draw_lighting_model1()

void GS_draw_lighting_model1 ( void )

Draw lighting model.

Definition at line 896 of file gs2.c.

References CM_AD, DM_GOURAUD, GS_get_modelposition1(), GS_v3eq(), gsd_backface(), gsd_colormode(), gsd_do_scale(), gsd_drawsphere(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_shademodel(), gsd_zwritemask(), and Z.

◆ GS_draw_line_onsurf()

void GS_draw_line_onsurf	(	int	id,
		float	x1,
		float	y1,
		float	x2,
		float	y2
	)

Draw line on surface.

Parameters

id	surface id
x1,y1,x2,y2	line nodes

Definition at line 675 of file gs2.c.

References GS_default_draw_color(), gs_get_surf(), gsd_color_func(), gsd_do_scale(), gsd_flush(), gsd_line_onsurf(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), X, and Y.

◆ GS_draw_nline_onsurf()

int GS_draw_nline_onsurf	(	int	id,
		float	x1,
		float	y1,
		float	x2,
		float	y2,
		float *	lasp,
		int	n
	)

Draw multiline on surface.

Like above but limits points in line to n or points found in segment, whichever is smaller.

Parameters

id	surface id
x1,y1,x2,y2	line nodes
lasp
n

Returns: number of points used

Definition at line 715 of file gs2.c.

References GS_default_draw_color(), gs_get_surf(), gsd_color_func(), gsd_do_scale(), gsd_flush(), gsd_linewidth(), gsd_nline_onsurf(), gsd_popmatrix(), gsd_pushmatrix(), gsd_surf2real(), gsd_translate(), X, and Y.

Referenced by GS_draw_flowline_at_xy().

◆ GS_draw_surf()

void GS_draw_surf ( int id )

Draw surface.

Parameters

id	surface id

Definition at line 1865 of file gs2.c.

References DM_GOURAUD, DM_POLY, DM_WIRE, DM_WIRE_POLY, G_debug(), gs_get_surf(), gsd_shademodel(), gsd_surf(), and gsd_wire_surf().

Referenced by GS_alldraw_surf(), and Nviz_draw_all_surf().

◆ GS_draw_wire()

void GS_draw_wire ( int id )

Draw surface wire.

Overrides draw_mode for fast display

Parameters

id	surface id

Definition at line 1900 of file gs2.c.

References G_debug(), gs_get_surf(), and gsd_wire_surf().

◆ GS_draw_X()

void GS_draw_X	(	int	id,
		float *	pt
	)

Draw place marker.

Used to display query point for raster queries.

Parameters

id	surface id
pt	point, X, Y value in true world coordinates

Definition at line 634 of file gs2.c.

References _viewcell_tri_interp(), ATT_TOPO, g_vect_style::color, CONST_ATT, gpd_obj(), gs_get_att_src(), GS_get_longdim(), gs_get_surf(), gsd_do_scale(), gsd_flush(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), NULL, g_vect_style::size, ST_GYRO, g_vect_style::symbol, X, Y, and Z.

◆ GS_dv3norm()

int GS_dv3norm ( double * dv1 )

Changes v1 so that it is a unit vector.

Parameters

[in,out] dv1 3D vector (X,Y,Z)

Returns: 0 if magnitude of dv1 is zero; 1 if magnitude of dv1 > 0

Definition at line 295 of file gs_util.c.

References X, Y, and Z.

Referenced by gsd_def_cplane().

◆ gs_err()

void gs_err ( const char * msg )

Definition at line 35 of file gs.c.

References G_warning().

◆ gs_free_surf()

int gs_free_surf ( geosurf * fs )

Free geosurf struct.

Parameters

fs	pointer to geosurf struct

Returns: 1 found; 0 not found; -1 on error

Definition at line 487 of file gs.c.

References G_debug(), G_free(), gs_free_unshared_buffs(), and NULL.

Referenced by gs_delete_surf().

◆ gs_free_unshared_buffs()

void gs_free_unshared_buffs ( geosurf * fs )

Free unshared buffers of geosurf struct.

fs has already been taken out of the list

This function is fairly revealing about how shared datasets work

Parameters

fs	pointer to geosurf struct

Definition at line 557 of file gs.c.

References G_debug(), gsds_free_datah(), and MAX_ATTS.

Referenced by gs_free_surf().

◆ GS_geodistance()

double GS_geodistance	(	double *	from,
		double *	to,
		const char *	units
	)

Calculate distance between 2 coordinates.

Units is one of:

"meters",
"miles",
"kilometers",
"feet",
"yards",
"nmiles" (nautical miles),
"rods",
"inches",
"centimeters",
"millimeters",
"micron",
"nanometers",
"cubits",
"hands",
"furlongs",
"chains"

Default is meters.

Parameters

[in]	from	starting point (X,Y)
[in]	to	ending point (X,Y)
[in]	units	map units

Returns: distance between two geographic coordinates in current projection

Definition at line 55 of file gs_util.c.

References Gs_distance().

◆ GS_get_aspect()

double GS_get_aspect ( void )

Get aspect value.

Returns: aspect value

Definition at line 3450 of file gs2.c.

References Cell_head::bottom, G_debug(), and Cell_head::top.

Referenced by GS_init_view(), and gsd_set_view().

◆ GS_get_att()

int GS_get_att	(	int	id,
		int	att,
		int *	set,
		float *	constant,
		char *	mapname
	)

Get attributes.

Parameters

	id	surface id
	att
[out]	set
[out]	constant
[out]	mapname

Returns: 1 on success; -1 on error (invalid surface id)

Definition at line 1134 of file gs2.c.

References CONST_ATT, gs_get_att_src(), gs_get_surf(), gsds_get_name(), MAP_ATT, and strcpy.

◆ gs_get_att_src()

int gs_get_att_src	(	geosurf *	gs,
		int	desc
	)

Get attribute source.

Parameters

gs	pointer to geosurf struct
desc	attribute id (descriptor)

Returns: -1 on error; attribute source id

Definition at line 656 of file gs.c.

References G_debug(), and LEGAL_ATT.

Referenced by gpd_2dsite(), GS_draw_X(), GS_get_att(), GS_get_cat_at_xy(), GS_get_exag_guess(), GS_get_val_at_xy(), gs_set_att_src(), Gs_update_attrange(), gsd_surf(), gsd_wire_surf(), gsdrape_get_allsegments(), gsdrape_get_segments(), gvd_vect(), and viewcell_tri_interp().

◆ gs_get_att_typbuff()

typbuff * gs_get_att_typbuff	(	geosurf *	gs,
		int	desc,
		int	to_write
	)

Get attribute data buffer.

Parameters

gs	pointer to geosurf struct
desc	attribute id (descriptor)
to_write	non-zero value for 'write'

Returns: NULL on error; pointer to typbuff

Definition at line 681 of file gs.c.

References ATT_TOPO, G_debug(), gsdiff_do_SD(), gsdiff_get_SDref(), gsds_get_typbuff(), and NULL.

Referenced by _viewcell_tri_interp(), gpd_2dsite(), GS_get_cat_at_xy(), GS_get_val_at_xy(), GS_load_att_map(), gs_los_intersect(), gs_los_intersect1(), gs_update_curmask(), gsd_coarse_surf_map(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_norm_arrows(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsdiff_set_SDref(), gsdrape_set_surface(), and init_vars().

◆ gs_get_att_type()

int gs_get_att_type	(	geosurf *	gs,
		int	desc
	)

Get attribute type.

Parameters

gs	pointer to geosurf struct
desc	attribute id

Returns: -1 on error; attribute type

Definition at line 630 of file gs.c.

References G_debug(), LEGAL_ATT, and NOTSET_ATT.

◆ GS_get_cat_at_xy()

int GS_get_cat_at_xy	(	int	id,
		int	att,
		char *	catstr,
		float	x,
		float	y
	)

Get surface category on given position.

Prints "no data" or a description (i.e., "coniferous forest") to catstr. Usually call after GS_get_selected_point_on_surface(). Define att as MAP_ATT

Todo:: Allocate catstr using G_store()

Parameters

id	surface id
att	attribute id (MAP_ATT)
catstr	cat string (must be allocated, dim?)
x,y	real coordinates

Returns: -1 if no category info or point outside of window; 1 on success

Definition at line 1177 of file gs2.c.

References _, DRC2OFF, GET_MAPATT, gs_get_att_src(), gs_get_att_typbuff(), Gs_get_cat_label(), gs_get_surf(), gs_point_is_masked(), gsd_real2surf(), gsds_get_name(), in_vregion(), MAP_ATT, NULL, VCOL2DCOL, VROW2DROW, X, x, X2VCOL, Y, and Y2VROW.

◆ Gs_get_cat_label()

int Gs_get_cat_label	(	const char *	filename,
		int	drow,
		int	dcol,
		char *	catstr
	)

Get categories/labels.

Formats label as in d.what.rast -> (catval) catlabel

Parameters

filename	raster map name
drow
dcol
catstr	category string

Returns: 1 on success; 0 on failure

Definition at line 776 of file gs3.c.

References _, CELL_TYPE, G_find_raster2(), G_free(), G_warning(), NULL, Rast_allocate_c_buf(), Rast_allocate_d_buf(), Rast_close(), Rast_free_cats(), Rast_get_c_cat(), Rast_get_c_row(), Rast_get_d_cat(), Rast_get_d_row(), Rast_get_map_type(), Rast_is_c_null_value, Rast_is_d_null_value, Rast_open_old(), Rast_read_cats(), and strcpy.

Referenced by GS_get_cat_at_xy().

◆ GS_Get_ClientData()

void * GS_Get_ClientData ( int id )

Get client data.

Parameters

id	surface id

Returns: pointer to client data; NULL on error

Definition at line 1500 of file gs2.c.

References gs_get_surf(), and NULL.

◆ gs_get_data_avg_zmax()

int gs_get_data_avg_zmax ( float * azmax )

Get average z-max value.

Useful for setting position of cplane, lighting ball, etc.

Parameters

[out] azmax average z-max value

Returns: -1 on error; 1 on success

Definition at line 1201 of file gs.c.

Referenced by GS_get_modelposition1().

◆ gs_get_databounds_planes()

void gs_get_databounds_planes ( Point4 * planes )

Get data bounds for plane.

Parameters

[out] planes

Definition at line 469 of file gs_query.c.

References b, DOT3, gs_get_xrange(), gs_get_yrange(), GS_get_zrange(), t, W, X, Y, and Z.

Referenced by gs_setlos_enterdata().

◆ gs_get_datacenter()

int gs_get_datacenter ( float * cen )

Get data center point.

Parameters

[out] cen center (array X,Y,Z)

Returns: -1 on error; 1 on success

Definition at line 1230 of file gs.c.

References X, Y, and Z.

Referenced by GS_get_modelposition1(), and gsd_set_view().

◆ GS_get_dims()

void GS_get_dims	(	int	id,
		int *	rows,
		int *	cols
	)

Get dimension of surface.

Parameters

	id	surface id
[out]	rows,cols	number of rows/cols

Definition at line 2280 of file gs2.c.

References Cell_head::cols, gs_get_surf(), and Cell_head::rows.

Referenced by Nviz_set_attr().

◆ GS_get_distance_alongsurf()

int GS_get_distance_alongsurf	(	int	hs,
		float	x1,
		float	y1,
		float	x2,
		float	y2,
		float *	dist,
		int	use_exag
	)

Measure distance "as the ball rolls" between two points on surface.

Parameters

	hs	surface id
	x1,y1,x2,y2	two points on surface
[out]	dist	measured distance
	use_exag	use exag. surface

Returns: 0 on error or if one or more points is not in region; distance following terrain

Definition at line 3284 of file gs2.c.

References G_debug(), gs_distance_onsurf(), gs_get_surf(), gsd_real2surf(), NULL, X, and Y.

◆ GS_get_drawmode()

int GS_get_drawmode	(	int	id,
		int *	mode
	)

Get draw mode.

Parameters

	id	surface id
[out]	mode	mode id

Returns: 1 on success; -1 on error (invalid surface id)

Definition at line 2110 of file gs2.c.

References gs_get_surf().

◆ GS_get_drawres()

void GS_get_drawres	(	int	id,
		int *	xres,
		int *	yres,
		int *	xwire,
		int *	ywire
	)

Get draw resolution of surface.

Parameters

	id	surface id
[out]	xres,yres	x/y resolution value
[out]	xwire,ywire	x/y wire value

Definition at line 2256 of file gs2.c.

References G_debug(), and gs_get_surf().

◆ GS_get_exag_guess()

int GS_get_exag_guess	(	int	id,
		float *	exag
	)

Get exag-value guess.

Use no_zero range because if zero IS data, then range won't be that much off (it's just a GUESS, after all), but if zero is NO data, could drastically affect guess

Parameters

	id	surface id
[out]	exag	exag value

Returns: 1 on success; -1 on error

Definition at line 2307 of file gs2.c.

References ATT_TOPO, CONST_ATT, G_debug(), gs_get_att_src(), and gs_get_surf().

Referenced by Nviz_get_exag(), and Nviz_get_exag_height().

◆ GS_get_fencecolor()

int GS_get_fencecolor ( void )

Get fence color.

Returns: color value

Definition at line 3267 of file gs2.c.

References gsd_getfc().

◆ GS_get_focus()

int GS_get_focus ( float * realto )

Get focus.

OK to call with NULL argument if just want to check state

Parameters

realto real coordinates to

Returns: ?

Definition at line 2562 of file gs2.c.

References G_debug(), and GS_v3eq().

Referenced by GS_get_to_real(), Nviz_get_focus(), and Nviz_has_focus().

◆ GS_get_fov()

int GS_get_fov ( void )

Get field of view.

Returns: field of view, in 10ths of degrees

Definition at line 2853 of file gs2.c.

Referenced by GK_add_key().

◆ GS_get_from()

void GS_get_from ( float * fr )

Get viewpoint 'from' position.

Parameters

[out] fr from model coordinates

Definition at line 2724 of file gs2.c.

References FROM, G_debug(), and GS_v3eq().

Referenced by GK_add_key(), gk_draw_path(), gk_follow_frames(), Nviz_flythrough(), Nviz_get_viewpoint_position(), and Nviz_set_viewpoint_position().

◆ GS_get_from_real()

void GS_get_from_real ( float * fr )

Get viewpoint 'from' real coordinates.

Parameters

[out] fr 'from' real coordinates

Definition at line 2738 of file gs2.c.

References FROM, GS_v3eq(), and gsd_model2real().

Referenced by Nviz_get_viewpoint_height(), and Nviz_set_viewpoint_height().

◆ gs_get_last_surface()

geosurf * gs_get_last_surface ( void )

Get last allocated geosurf struct from list.

Returns: pointer to geosurf struct

Definition at line 173 of file gs.c.

References G_debug(), and NULL.

Referenced by gs_get_new_surface().

◆ GS_get_light_reset()

int GS_get_light_reset ( void )

Definition at line 257 of file gs2.c.

Referenced by GS_new_light().

◆ GS_get_longdim()

int GS_get_longdim ( float * dim )

Get largest dimension.

Parameters

[out] dim dimension

Returns: 1

Definition at line 140 of file gs2.c.

References G_debug().

Referenced by gk_draw_path(), gp_set_defaults(), GS_draw_X(), gsd_draw_cplane(), Nviz_get_exag_height(), Nviz_get_longdim(), and Nviz_update_ranges().

◆ GS_get_maskmode()

int GS_get_maskmode	(	int	id,
		int *	mode
	)

Get mask mode.

Parameters

	id	surface id
[out]	mode	id

Returns: 1 on success; -1 on error (invalid surface id)

Definition at line 1454 of file gs2.c.

References ATT_MASK, and gs_get_surf().

◆ GS_get_modelposition()

void GS_get_modelposition	(	float *	size,
		float *	pos
	)

Retrieves coordinates for lighting model position, at center of view.

Position at nearclip * 2: tried nearclip + siz, but since need to know position to calculate size, have two dependent variables (nearclip * 2) from eye.

Parameters

[out]	size	size
[out]	pos	coordinates (X, Y, Z)

Definition at line 528 of file gs2.c.

References FROM, GS_v3dir(), TO, X, Y, and Z.

Referenced by GS_draw_lighting_model().

◆ GS_get_modelposition1()

void GS_get_modelposition1 ( float * )

◆ gs_get_new_surface()

geosurf * gs_get_new_surface ( void )

Allocate new geosurf struct.

Returns: pointer to geosurf struct

Definition at line 194 of file gs.c.

References FIRST_SURF_ID, G_debug(), G_malloc, gs_get_last_surface(), g_surf::gsurf_id, g_surf::next, and NULL.

Referenced by GS_new_surface().

◆ GS_get_norm_at_xy()

int GS_get_norm_at_xy	(	int	id,
		float	x,
		float	y,
		float *	nv
	)

Get surface normal at x,y (real coordinates)

Usually call after GS_get_selected_point_on_surface()

Parameters

	id	surface id
	x,y	real coordinates
[out]	nv	surface normal

Returns: -1 if point outside of window or masked; 1 on success

Definition at line 1239 of file gs2.c.

References DRC2OFF, FNORM, gs_calc_normals(), gs_get_surf(), gs_point_is_masked(), gsd_real2surf(), in_vregion(), NULL, VCOL2DCOL, VROW2DROW, X, x, X2VCOL, Y, and Y2VROW.

Referenced by GS_draw_flowline_at_xy().

◆ GS_get_nozero()

int GS_get_nozero	(	int	id,
		int	att,
		int *	mode
	)

Get no-zero ?

Parameters

	id	surface id
	att	attribute id
[out]	mode	mode id

Returns: -1 on error (invalid surface id); 1 on success

Definition at line 2165 of file gs2.c.

References ATT_COLOR, ATT_TOPO, G_debug(), and gs_get_surf().

◆ gs_get_prev_surface()

geosurf * gs_get_prev_surface ( int id )

Get previous geosurf struct.

Parameters

id	current surface id

Returns: pointer to geosurf struct; NULL if not found

Definition at line 87 of file gs.c.

References G_debug(), NULL, and ps.

Referenced by gs_init_surf().

◆ GS_get_region()

int GS_get_region	(	float *	n,
		float *	s,
		float *	w,
		float *	e
	)

Get 2D region extent.

Parameters

[out] n,s,w,e extent values

Returns: 1

Definition at line 156 of file gs2.c.

Referenced by GP_draw_site(), gsd_model2real(), gsd_real2model(), and Nviz_set_cplane_here().

◆ GS_get_rotation_matrix()

void GS_get_rotation_matrix ( double * matrix )

Get rotation matrix.

Definition at line 2927 of file gs2.c.

◆ GS_get_scale()

void GS_get_scale	(	float *	sx,
		float *	sy,
		float *	sz,
		int	doexag
	)

Get axis scale.

Parameters

sx,sy,sz	x/y/z scale values
doexag	use vertical exaggeration

Definition at line 3239 of file gs2.c.

Referenced by gsd_coarse_surf_map(), gsd_def_cplane(), gsd_do_scale(), gsd_model2real(), gsd_model2surf(), gsd_norm_arrows(), gsd_real2model(), gsd_surf2model(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_wire_arrows(), gvd_vect(), gvld_isosurf(), gvld_slices(), and init_vars().

◆ GS_get_SDscale()

int GS_get_SDscale ( float * scale )

Get ?

Parameters

[out] scale value

Returns: 1

Definition at line 1099 of file gs2.c.

References gsdiff_get_SDscale().

◆ GS_get_SDsurf()

int GS_get_SDsurf ( int * id )

Get ?

Parameters

[out] id ?

Returns: 1 on success; 0 on error

Definition at line 1079 of file gs2.c.

References gsdiff_get_SDref().

◆ GS_get_selected_point_on_surface()

int GS_get_selected_point_on_surface	(	int	sx,
		int	sy,
		int *	id,
		float *	x,
		float *	y,
		float *	z
	)

Get selected point of surface.

Given screen coordinates sx and sy, find closest intersection of view ray with surfaces and return coordinates of intersection in x, y, z, and identifier of surface in id.

Parameters

	sx,sy	screen coordinates
[out]	id	surface id
[out]	x,y,z	point on surface (model coordinates?)

Returns: 0 if no intersections found; number of intersections

Definition at line 3054 of file gs2.c.

References FROM, G_debug(), GS_distance(), gs_get_surf(), gs_los_intersect(), gs_los_intersect1(), gs_point_is_masked(), gs_setlos_enterdata(), GS_v3eq(), gsd_get_los(), gsd_surf2real(), MAX_SURFS, X, x, Y, and Z.

Referenced by GS_look_here(), GS_set_Narrow(), and Nviz_set_cplane_here().

◆ gs_get_surf()

geosurf * gs_get_surf ( int id )

Get geosurf struct.

Parameters

id	surface id

Returns: pointer to geosurf struct; NULL if not found

Definition at line 63 of file gs.c.

References G_debug(), and NULL.

Referenced by GP_draw_site(), gp_update_drapesurfs(), GS_alldraw_wire(), gs_delete_surf(), GS_draw_cplane_fence(), GS_draw_flowline_at_xy(), GS_draw_fringe(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_surf(), GS_draw_wire(), GS_draw_X(), GS_get_att(), GS_get_cat_at_xy(), GS_Get_ClientData(), GS_get_dims(), GS_get_distance_alongsurf(), GS_get_drawmode(), GS_get_drawres(), GS_get_exag_guess(), GS_get_maskmode(), GS_get_norm_at_xy(), GS_get_nozero(), GS_get_selected_point_on_surface(), GS_get_trans(), GS_get_val_at_xy(), GS_get_wire_color(), GS_get_zextents(), GS_get_zrange_nz(), GS_is_masked(), GS_load_3dview(), GS_load_att_map(), GS_look_here(), gs_los_intersect(), gs_los_intersect1(), GS_save_3dview(), GS_set_att_const(), GS_Set_ClientData(), GS_set_drawmode(), GS_set_drawres(), GS_set_exag(), GS_set_focus_center_map(), GS_set_maskmode(), GS_set_Narrow(), GS_set_nozero(), GS_set_SDsurf(), GS_set_trans(), GS_set_wire_color(), GS_surf_exists(), GS_unset_att(), GS_update_curmask(), GS_update_normals(), GV_draw_fastvect(), GV_draw_vect(), gv_update_drapesurfs(), and Nviz_set_cplane_here().

◆ GS_get_surf_list()

int * GS_get_surf_list ( int * numsurfs )

Get surface list.

Must be freed when not needed!

Parameters

[out] numsurfs number of available surfaces

Returns: pointer to surface array; NULL on error

Definition at line 1532 of file gs2.c.

References G_malloc, and NULL.

Referenced by Nviz_draw_all_surf(), Nviz_get_exag(), Nviz_get_exag_height(), Nviz_new_fringe(), Nviz_new_map_obj(), Nviz_set_arrow(), Nviz_set_focus_map(), Nviz_set_fringe(), and Nviz_set_scalebar().

◆ GS_get_to()

void GS_get_to ( float * to )

Get 'to' model coordinates.

Todo:: need set_to? - just use viewdir?

Parameters

[out] to 'to' model coordinates

Definition at line 2793 of file gs2.c.

References G_debug(), GS_v3eq(), and TO.

◆ GS_get_to_real()

void GS_get_to_real ( float * to )

Get 'to' real coordinates.

Parameters

[out] to 'to' real coordinates

Definition at line 2751 of file gs2.c.

References G_get_set_window(), GS_get_focus(), X, Y, and Z.

◆ GS_get_trans()

void GS_get_trans	(	int	id,
		float *	xtrans,
		float *	ytrans,
		float *	ztrans
	)

Get translation values (surface position)

Parameters

	id	surface id
[out]	xtrans,ytrans,ztrans	trans values

Definition at line 2416 of file gs2.c.

References G_debug(), and gs_get_surf().

◆ GS_get_twist()

int GS_get_twist ( void )

Get twist value.

10ths of degrees off twelve o'clock

Definition at line 2863 of file gs2.c.

Referenced by GK_add_key().

◆ GS_get_val_at_xy()

int GS_get_val_at_xy	(	int	id,
		int	att,
		char *	valstr,
		float	x,
		float	y
	)

Get RGB color at given point.

Colors are translated to rgb and returned as Rxxx Gxxx Bxxx Usually call after GS_get_selected_point_on_surface().

Prints NULL or the value (i.e., "921.5") to valstr

Parameters

	id	surface id
	att	attribute id
[out]	valstr	value string (allocated, dim?)
	x,y	real coordinates

Returns: -1 if point outside of window or masked; 1 on success

Definition at line 1303 of file gs2.c.

References ATT_COLOR, b, CONST_ATT, DRC2OFF, g, GET_MAPATT, gs_get_att_src(), gs_get_att_typbuff(), gs_get_surf(), gs_mapcolor(), gs_point_is_masked(), gsd_real2surf(), in_vregion(), INT_TO_BLU, INT_TO_GRN, INT_TO_RED, MAP_ATT, NULL, r, VCOL2DCOL, VROW2DROW, X, x, X2VCOL, Y, and Y2VROW.

◆ GS_get_viewdir()

void GS_get_viewdir ( float * dir )

Get viewdir.

Parameters

[out] dir viewdir value

Definition at line 2807 of file gs2.c.

References FROM, GS_v3dir(), and TO.

Referenced by GK_add_key(), gk_follow_frames(), and Nviz_flythrough().

◆ GS_get_wire_color()

int GS_get_wire_color	(	int	id,
		int *	colr
	)

Get wire color.

Parameters

	id	surface id
[out]	colr	color value

Returns: 1 on success; -1 on error

Definition at line 2039 of file gs2.c.

References gs_get_surf().

◆ gs_get_xextents()

int gs_get_xextents	(	geosurf *	gs,
		float *	min,
		float *	max
	)

Get x-extent values.

Parameters

	gs	pointer to geosurf struct
[out]	min	x-min value
[out]	max	x-max value

Returns: 1

Definition at line 1015 of file gs.c.

References max, and min.

Referenced by gs_get_xrange().

◆ gs_get_xrange()

int gs_get_xrange	(	float *	min,
		float *	max
	)

Get x-range.

Parameters

[out]	min	x-min value
[out]	max	x-max value

Returns: -1 on error (no surface); 1 on success

Definition at line 1124 of file gs.c.

References gs_get_xextents(), max, and min.

Referenced by gs_get_databounds_planes().

◆ gs_get_yextents()

int gs_get_yextents	(	geosurf *	gs,
		float *	min,
		float *	max
	)

Get y-extent values.

Parameters

	gs	pointer to geosurf struct
[out]	min	y-min value
[out]	max	y-max value

Returns: 1

Definition at line 1032 of file gs.c.

References max, and min.

Referenced by gs_get_yrange().

◆ gs_get_yrange()

int gs_get_yrange	(	float *	min,
		float *	max
	)

Get y-range.

Parameters

[out]	min	y-min value
[out]	max	y-max value

Returns: -1 on error (no surface); 1 on success

Definition at line 1162 of file gs.c.

References gs_get_yextents(), max, and min.

Referenced by gs_get_databounds_planes().

◆ gs_get_zextents()

int gs_get_zextents	(	geosurf *	gs,
		float *	min,
		float *	max,
		float *	mid
	)

Get z-extent values.

Todo:: pass flag to use zminmasked instead of zmin

Parameters

	gs	pointer to geosurf struct
[out]	min	z-min value
[out]	max	z-max value
[out]	mid	z-middle value

Returns: 1

Definition at line 997 of file gs.c.

References max, and min.

Referenced by GS_get_zextents(), and gs_get_zrange().

◆ GS_get_zextents()

int GS_get_zextents	(	int	id,
		float *	min,
		float *	max,
		float *	mid
	)

Get z-extent for a single surface.

Parameters

	id	surface id
[out]	min	min z-value
[out]	max	max z-value
[out]	mid	middle z-value

Returns: -1 on error (invalid surface id); ?

Definition at line 2665 of file gs2.c.

References G_debug(), gs_get_surf(), gs_get_zextents(), max, min, and NULL.

◆ gs_get_zrange()

int gs_get_zrange	(	float *	min,
		float *	max
	)

Get z-range.

Parameters

[out]	min	z-min value
[out]	max	z-max value

Returns: -1 on error (no surface); 1 on success

Definition at line 1086 of file gs.c.

References gs_get_zextents(), max, and min.

Referenced by GS_get_zrange(), and gvd_vect().

◆ GS_get_zrange()

int GS_get_zrange	(	float *	min,
		float *	max,
		int	doexag
	)

Get z-extent for all loaded surfaces.

Parameters

[out]	min	min z-value
[out]	max	max z-value
	doexag	use z-exaggeration

Returns: 1 on success; -1 on error

Definition at line 2688 of file gs2.c.

References G_debug(), gs_get_zrange(), gvl_get_zrange(), max, and min.

Referenced by gs_get_databounds_planes(), Gs_save_3dview(), gsd_check_focus(), gsd_def_cplane(), gsd_do_scale(), gsd_model2real(), gsd_model2surf(), gsd_real2model(), and gsd_surf2model().

◆ gs_get_zrange0()

int gs_get_zrange0	(	float *	min,
		float *	max
	)

Get z-range.

Todo:: pass flag to use zminmasked instead of zmin could also have this return a weighted average for vertical "centroid"

Parameters

[out]	min	z-min value
[out]	max	z-max value

Returns: -1 on error (no surface); 1 on success

Definition at line 1052 of file gs.c.

References max, and min.

◆ GS_get_zrange_nz()

void GS_get_zrange_nz	(	float *	min,
		float *	max
	)

Get Z extents for all loaded surfaces.

Treating zeros as "no data"

Parameters

[out]	min	min value
[out]	max	max value

Definition at line 2358 of file gs2.c.

References G_debug(), gs_get_surf(), max, and min.

Referenced by Nviz_get_exag_height(), Nviz_get_zrange(), and Nviz_update_ranges().

◆ gs_getall_surfaces()

int gs_getall_surfaces ( geosurf ** gsurfs )

Get array of geosurf structs.

Parameters

gsurfs pointer to array

Returns: number of geosurfs

Definition at line 109 of file gs.c.

References G_debug().

Referenced by GS_draw_cplane(), and gsd_wall().

◆ GS_getlight_ambient()

void GS_getlight_ambient	(	int	num,
		float *	red,
		float *	green,
		float *	blue
	)

Get light ambient.

Parameters

	num	light id (starts at 1)
[out]	red,green,blue	color values

Definition at line 422 of file gs2.c.

◆ GS_getlight_color()

void GS_getlight_color	(	int	num,
		float *	red,
		float *	green,
		float *	blue
	)

Get light color.

Parameters

	num	light id (starts at 1)
[out]	red,green,blue	color values

Definition at line 378 of file gs2.c.

◆ GS_getlight_position()

void GS_getlight_position	(	int	num,
		float *	xpos,
		float *	ypos,
		float *	zpos,
		int *	local
	)

Get light position.

Parameters

	num	light id (starts at 1)
[out]	xpos,ypos,zpos	coordinates
[out]	local	?

Definition at line 334 of file gs2.c.

References W, X, Y, and Z.

Referenced by gk_follow_frames().

◆ GS_global_exag()

float GS_global_exag ( void )

Get global z-exag value.

Returns: value

Definition at line 2000 of file gs2.c.

References G_debug().

Referenced by gpd_3dsite(), gpd_obj(), gs_distance_onsurf(), gsd_coarse_surf_map(), gsd_draw_cplane(), gsd_norm_arrows(), gsd_surf_map(), gsd_surf_map_old(), gsd_wire_arrows(), init_vars(), Nviz_change_exag(), and Nviz_update_ranges().

◆ GS_has_transparency()

int GS_has_transparency ( void )

Check for transparency.

Disabled.

Returns: 1

Definition at line 3478 of file gs2.c.

◆ gs_init()

void gs_init ( void )

Initialize library.

Still need to take care of library initialization, probably want to define a Surf_top of constant value (i.e., 0)

Definition at line 48 of file gs.c.

References NULL.

Referenced by GS_libinit().

◆ gs_init_normbuff()

int gs_init_normbuff ( geosurf * gs )

Init geosurf normbuff.

Parameters

gs	pointer to geosurf struct

Returns: 0 on error; 1 on success

Definition at line 308 of file gs.c.

References G_free(), and G_malloc.

Referenced by GS_load_att_map().

◆ GS_init_rotation()

void GS_init_rotation ( void )

Reset scene rotation.

Definition at line 2907 of file gs2.c.

Referenced by GS_init_view(), and Nviz_init_rotation().

◆ gs_init_surf()

int gs_init_surf	(	geosurf *	gs,
		double	ox,
		double	oy,
		int	rows,
		int	cols,
		double	xres,
		double	yres
	)

Initialize allocated geosurf struct.

Todo:: Now xmin & ox are the same, right? - get rid of ox, oy in geosurf struct?

Parameters

gs	pointer to geosurf struct
ox,oy	x/y origin coordinates
rows	number of rows
cols	number of cols
xres,yres	x/y resolution value

Returns: -1 on error; 0 on success

Definition at line 234 of file gs.c.

References ATTY_INT, DM_GOURAUD, FIRST_SURF_ID, G_debug(), gs_get_prev_surface(), MAX_ATTS, NOTSET_ATT, NULL, and ps.

Referenced by GS_new_surface().

◆ GS_init_view()

void GS_init_view ( void )

Init viewpoint.

Todo:: allow setting center?

Definition at line 3346 of file gs2.c.

References FROM, G_debug(), GS_get_aspect(), GS_init_rotation(), GS_set_focus(), GS_UNIT_SIZE, GS_v3eq(), GS_v3normalize(), TO, W, X, Y, and Z.

Referenced by Nviz_init_view().

◆ GS_is_masked()

int GS_is_masked	(	int	id,
		float *	pt
	)

Check if point is masked ?

Parameters

id	surface id
pt	point

Returns: 1 masked; 0 not masked; -1 on error, invalid surface id

Definition at line 1009 of file gs2.c.

References gs_get_surf(), gs_point_is_masked(), X, and Y.

◆ GS_libinit()

void GS_libinit ( void )

Initialize OGSF library.

Get region settings - wind

Set Region (NSWE array) and compute scale

Definition at line 98 of file gs2.c.

References Cxl_func, G_debug(), G_get_set_window(), gs_init(), GS_UNIT_SIZE, and void_func().

◆ GS_lights_off()

void GS_lights_off ( void )

Switch off all lights.

Definition at line 439 of file gs2.c.

References gsd_switchlight().

◆ GS_lights_on()

void GS_lights_on ( void )

Switch on all lights.

Definition at line 453 of file gs2.c.

References gsd_switchlight().

◆ Gs_load_3dview()

int Gs_load_3dview	(	const char *	vname,
		geoview *	gv,
		geodisplay *	gd,
		struct Cell_head *	w,
		const geosurf *	defsurf
	)

Load 3dview.

Parameters

vname	view name
gv	pointer to geoview struct
gd	pointer to geodisplay struct (unused)
w	current window
defsurf	default geosurf struct

Returns: 1

Definition at line 951 of file gs3.c.

References _, G_3dview::ambient, G_3dview::colorgrid, G_3dview::display_type, DM_COL_WIRE, DM_GOURAUD, DM_POLY, DM_WIRE, DM_WIRE_POLY, Cell_head::ew_res, G_3dview::exag, G_3dview::fov, FROM, G_3dview::from_to, G_find_file2(), G_get_3dview(), G_warning(), GS_alldraw_wire(), GS_moveto_real(), GS_set_focus(), GS_set_fov(), GS_set_global_exag(), GS_set_twist(), GS_setall_drawmode(), GS_setall_drawres(), G_3dview::lightcol, G_3dview::lightpos, G_3dview::lightson, G_3dview::mesh_freq, Cell_head::ns_res, NULL, G_3dview::pgm_id, G_3dview::poly_freq, G_3dview::shading, G_3dview::shine, Cell_head::south, TO, G_3dview::twist, G_3dview::vwin, Cell_head::west, X, Y, and Z.

Referenced by GS_load_3dview().

◆ GS_load_3dview()

int GS_load_3dview	(	const char *	vname,
		int	surfid
	)

Load 3d view.

Parameters

vname	view file name
surfid	surface id

Returns: ?

Definition at line 3328 of file gs2.c.

References gs_get_surf(), and Gs_load_3dview().

◆ GS_load_att_map()

int GS_load_att_map	(	int	id,
		const char *	filename,
		int	att
	)

Load raster map as attribute.

Parameters

id	surface id
filename	filename
att	attribute descriptor

Returns: -1 on error (invalid surface id); ?

Definition at line 1600 of file gs2.c.

References _, ATT_COLOR, ATT_MASK, ATT_TOPO, ATTY_CHAR, ATTY_FLOAT, ATTY_INT, ATTY_MASK, ATTY_NULL, ATTY_SHORT, CF_COLOR_PACKED, free(), G_debug(), G_fatal_error(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_warning(), Gs_build_256lookup(), gs_get_att_typbuff(), gs_get_surf(), gs_init_normbuff(), Gs_loadmap_as_bitmap(), Gs_loadmap_as_char(), Gs_loadmap_as_float(), Gs_loadmap_as_int(), Gs_loadmap_as_short(), gs_malloc_att_buff(), gs_malloc_lookup(), Gs_numtype(), Gs_pack_colors(), Gs_pack_colors_float(), gs_set_att_src(), gs_set_att_type(), Gs_update_attrange(), gs_update_curmask(), gsds_findh(), gsds_free_data_buff(), gsds_newh(), gsds_set_changed(), MAP_ATT, NULL, and Rast_get_cellhd().

Referenced by Nviz_set_attr().

◆ Gs_loadmap_as_bitmap()

int Gs_loadmap_as_bitmap	(	struct Cell_head *	wind,
		const char *	map_name,
		struct BM *	buff
	)

Load raster map as integer map.

Calling function must have already allocated space in buff for struct BM of wind->rows & wind->cols.

This routine simply loads the map into the bitmap by repetitve calls to get_map_row. Any value other than 0 in the map will set the bitmap. (may want to change later to allow specific value to set)

Changed to use null.

Parameters

	wind	current window
	map_name	raster map name
[out]	buff	data buffer

Returns: 1 on success; -1 on failure

Definition at line 516 of file gs3.c.

References _, BM_set(), Cell_head::cols, G_debug(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_warning(), Rast_close(), Rast_get_c_row(), Rast_is_c_null_value, Rast_open_old(), and Cell_head::rows.

Referenced by GS_load_att_map().

◆ Gs_loadmap_as_char()

int Gs_loadmap_as_char	(	struct Cell_head *	wind,
		const char *	map_name,
		unsigned char *	buff,
		struct BM *	nullmap,
		int *	has_null
	)

Load raster map as integer map.

Calling function must have already allocated space in buff for wind->rows * wind->cols unsigned chars.

This routine simply loads the map into a 2d array by repetitve calls to get_map_row.

Since signs of chars can be tricky, we only load positive chars between 0-255.

Todo:: fn body Gs_loadmap_as_float()

Parameters

	wind	current window
	map_name	raster map name
[out]	buff	data buffer
[out]	nullmap	null map buffer
[out]	has_null	indicates if raster map contains null-data

Returns: 1 on success; -1 on failure; -2 if read ok, but 1 or more values were too large (small) to fit into an unsigned char. (in which case the max (min) char is used)

Definition at line 415 of file gs3.c.

References _, BM_set(), Cell_head::cols, G_debug(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_percent(), G_warning(), Rast_close(), Rast_get_c_row(), Rast_is_c_null_value, Rast_open_old(), and Cell_head::rows.

Referenced by GS_load_att_map().

◆ Gs_loadmap_as_float()

int Gs_loadmap_as_float	(	struct Cell_head *	wind,
		const char *	map_name,
		float *	buff,
		struct BM *	nullmap,
		int *	has_null
	)

Load raster map as floating point map.

Calling function must have already allocated space in buff for wind->rows * wind->cols floats.

This routine simply loads the map into a 2d array by repetitve calls to get_f_raster_row.

Parameters

	wind	current window
	map_name	raster map name
[out]	buff	data buffer
[out]	nullmap	null map buffer
[out]	has_null	indicates if raster map contains null-data

Returns: 1 on success; 0 on failure

Definition at line 109 of file gs3.c.

References _, BM_set(), Cell_head::cols, G_debug(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_message(), G_percent(), G_warning(), Rast_close(), Rast_get_f_row(), Rast_is_f_null_value, Rast_open_old(), and Cell_head::rows.

Referenced by GS_load_att_map().

◆ Gs_loadmap_as_int()

int Gs_loadmap_as_int	(	struct Cell_head *	wind,
		const char *	map_name,
		int *	buff,
		struct BM *	nullmap,
		int *	has_null
	)

Load raster map as integer map.

Calling function must have already allocated space in buff for wind->rows * wind->cols floats.

This routine simply loads the map into a 2d array by repetitve calls to get_f_raster_row.

Todo:: fn body of Gs_loadmap_as_float()

Parameters

	wind	current window
	map_name	raster map name
[out]	buff	data buffer
[out]	nullmap	null map buffer
[out]	has_null	indicates if raster map contains null-data

Returns: 1 on success; 0 on failure

Definition at line 174 of file gs3.c.

References _, BM_set(), Cell_head::cols, G_debug(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_message(), G_percent(), G_warning(), Rast_close(), Rast_get_c_row(), Rast_is_f_null_value, Rast_open_old(), and Cell_head::rows.

Referenced by GS_load_att_map().

◆ Gs_loadmap_as_short()

int Gs_loadmap_as_short	(	struct Cell_head *	wind,
		const char *	map_name,
		short *	buff,
		struct BM *	nullmap,
		int *	has_null
	)

Load raster map as integer map.

Calling function must have already allocated space in buff for wind->rows * wind->cols shorts.

This routine simply loads the map into a 2d array by repetitve calls to get_map_row.

Parameters

	wind	current window
	map_name	raster map name
[out]	buff	data buffer
[out]	nullmap	null map buffer
[out]	has_null	indicates if raster map contains null-data

Returns: 1 on success; -1 on failure,; -2 if read ok, but 1 or more values were too large (small) to fit into a short (in which case the max (min) short is used)

Definition at line 309 of file gs3.c.

References _, BM_set(), Cell_head::cols, G_debug(), G_find_raster2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_percent(), G_warning(), Rast_close(), Rast_get_c_row(), Rast_is_c_null_value, Rast_open_old(), and Cell_head::rows.

Referenced by GS_load_att_map().

◆ GS_look_here()

int GS_look_here	(	int	sx,
		int	sy
	)

Send screen coords sx and sy, lib traces through surfaces; sets new center to point of nearest intersection.

If no intersection, uses line of sight with length of current view ray (eye to center) to set new center.

Reset center of view to screen coordinates sx, sy.

Parameters

sx,sy screen coordinates

Returns: 1 on success; 0 on error (invalid surface id)

Definition at line 3005 of file gs2.c.

References FROM, GS_distance(), GS_get_selected_point_on_surface(), gs_get_surf(), GS_set_focus(), GS_v3dir(), GS_v3mult(), gsd_get_los(), TO, X, x, Y, and Z.

Referenced by Nviz_look_here().

◆ gs_los_intersect()

int gs_los_intersect	(	int	surfid,
		float **	los,
		float *	point
	)

Crude method of intersecting line of sight with closest part of surface.

This version uses the shadow of the los projected down to the surface to generate a line_on_surf, then follows each point in that line until the los intersects it.

Parameters

	surfid	surface id
	los	should be in surf-world coordinates
[out]	point	intersect point (real)

Returns: 0 on failure; 1 on success

Definition at line 192 of file gs_query.c.

References ATT_TOPO, b, FROM, G_debug(), gs_get_att_typbuff(), gs_get_surf(), GS_v3dir(), GS_v3eq(), gsdrape_get_allsegments(), NULL, segs_intersect(), TO, viewcell_tri_interp(), X, Y, and Z.

Referenced by GS_get_selected_point_on_surface().

◆ gs_los_intersect1()

int gs_los_intersect1	(	int	surfid,
		float(*)	los[3],
		float *	point
	)

Crude method of intersecting line of sight with closest part of surface.

Uses los vector to determine the point of first intersection which is returned in point. Returns 0 if los doesn't intersect.

Parameters

	surfid	surface id
	los	should be in surf-world coordinates
[out]	point	intersect point (real)

Returns: 0 on failure; 1 on success

Definition at line 52 of file gs_query.c.

References ATT_TOPO, b, FROM, G_debug(), GS_distance(), gs_get_att_typbuff(), gs_get_surf(), GS_v3dir(), NULL, TO, viewcell_tri_interp(), X, Y, and Z.

Referenced by GS_get_selected_point_on_surface().

◆ gs_malloc_att_buff()

size_t gs_malloc_att_buff	(	geosurf *	gs,
		int	desc,
		int	type
	)

Allocate attribute buffer.

Parameters

gs	pointer to geosurf struct
desc	attribute id (descriptor)
type	buffer type (based on raster map type)

Returns: -1 on error; amount of allocated memory

Definition at line 717 of file gs.c.

References G_debug(), gs_set_att_type(), and gsds_alloc_typbuff().

Referenced by GS_load_att_map().

◆ gs_malloc_lookup()

int gs_malloc_lookup	(	geosurf *	gs,
		int	desc
	)

Allocate attribute lookup.

Parameters

gs	pointer to geosurf struct
desc	attribute id

Returns: -1 on error; pointer to typbuff (casted)

Definition at line 746 of file gs.c.

References ATTY_CHAR, ATTY_SHORT, G_debug(), G_free(), G_malloc, G_warning(), and NULL.

Referenced by GS_load_att_map().

◆ gs_mapcolor()

int gs_mapcolor	(	typbuff *	cobuff,
		gsurf_att *	coloratt,
		int	offset
	)

Call this one when you already know att_src is MAP_ATT.

Parameters

cobuff
coloratt	color attribute
offset	offset value

Returns: packed color for category at offset

Definition at line 968 of file gs.c.

Referenced by GS_get_val_at_xy(), gs_update_curmask(), gsd_coarse_surf_map(), gsd_norm_arrows(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), and gsd_wire_surf_map().

◆ gs_mask_defined()

int gs_mask_defined ( geosurf * gs )

Check if mask is defined.

Parameters

gs	pointer to geosurf struct

Returns: 1 if defined; 0 not defined

Definition at line 914 of file gs.c.

References ATT_MASK, and NOTSET_ATT.

Referenced by gs_update_curmask().

◆ gs_masked()

int gs_masked	(	typbuff *	tb,
		int	col,
		int	row,
		int	offset
	)

Should only be called when setting up the current mask (gs_bm.c)

Parameters

tb	pointer to typbuff
col	number of cols
row	number of rows
offset	offset value

Returns: 1; 0

Definition at line 932 of file gs.c.

References BM_get().

Referenced by gs_update_curmask().

◆ GS_moveto()

void GS_moveto ( float * pt )

Move viewpoint.

Parameters

pt	'from' model coordinates

Definition at line 2616 of file gs2.c.

References FROM, G_debug(), GS_v3add(), GS_v3eq(), GS_v3normalize(), GS_v3sub(), and TO.

Referenced by gk_follow_frames(), GS_moveto_real(), Nviz_flythrough(), and Nviz_set_viewpoint_position().

◆ GS_moveto_real()

void GS_moveto_real ( float * pt )

Move position to (real)

Parameters

pt	point real coordinates

Definition at line 2646 of file gs2.c.

References GS_moveto(), and gsd_real2model().

Referenced by Gs_load_3dview(), and Nviz_set_viewpoint_height().

◆ GS_new_light()

int GS_new_light ( void )

Add new model light.

Returns: light model id; -1 on error (MAX_LIGHTS exceeded)

Definition at line 268 of file gs2.c.

References GS_get_light_reset(), GS_set_light_reset(), gsd_deflight(), gsd_init_lightmodel(), gsd_switchlight(), MAX_LIGHTS, W, X, Y, and Z.

Referenced by Nviz_new_light().

◆ GS_new_surface()

int GS_new_surface ( void )

Add new surface.

Note that origin has 1/2 cell added to represent center of cells because library assumes that east - west = (cols - 1) * ew_res, since left and right columns are on the edges.

Returns: surface id; -1 on error (MAX_SURFS exceeded)

Definition at line 223 of file gs2.c.

References ATT_SHINE, CONST_ATT, G_debug(), gs_get_new_surface(), gs_init_surf(), gs_set_att_src(), gs_set_defaults(), g_surf::gsurf_id, and MAX_SURFS.

Referenced by Nviz_new_map_obj().

◆ gs_num_datah_reused()

int gs_num_datah_reused ( int dh )

Get number of reused values.

Parameters

dh value

Returns: number of reused values

Definition at line 597 of file gs.c.

References G_debug(), and MAX_ATTS.

Referenced by gs_set_att_src().

◆ gs_num_surfaces()

int gs_num_surfaces ( void )

Get number of surfaces.

Returns: number of surfaces

Definition at line 128 of file gs.c.

References G_debug().

Referenced by GS_draw_cplane(), and GS_num_surfs().

◆ GS_num_surfs()

int GS_num_surfs ( void )

Get number of surfaces.

Returns: number of surfaces

Definition at line 1517 of file gs2.c.

References gs_num_surfaces().

Referenced by Nviz_new_map_obj(), Nviz_set_arrow(), Nviz_set_focus_map(), and Nviz_set_scalebar().

◆ Gs_numtype()

int Gs_numtype	(	const char *	filename,
		int *	negflag
	)

Get map data type.

Parameters

filename	raster map name
negflag

Returns: -1 if map is integer and Rast_read_range() fails; data type (ARRY_*)

Definition at line 227 of file gs3.c.

References _, ATTY_CHAR, ATTY_FLOAT, ATTY_INT, ATTY_SHORT, G_debug(), G_find_raster2(), G_warning(), max, min, Rast_get_range_min_max(), Rast_map_is_fp(), and Rast_read_range().

Referenced by GS_load_att_map().

◆ GS_P2distance()

float GS_P2distance	(	float *	from,
		float *	to
	)

Calculate distance in plane.

Parameters

[in]	from	'from' point (X,Y)
[in]	to	'to' point (X,Y)

Returns: distance

Definition at line 160 of file gs_util.c.

References X, x, and Y.

Referenced by gsd_arrow(), gsd_draw_cplane_fence(), gv_line_length(), and seg_intersect_vregion().

◆ Gs_pack_colors()

void Gs_pack_colors	(	const char *	filename,
		int *	buff,
		int	rows,
		int	cols
	)

Pack color table.

Passed an array of 32 bit ints that is converted from cell values to packed colors (0xbbggrr)

Parameters

filename	raster map name
buff
rows	number of rows
cols	number of cols

Definition at line 637 of file gs3.c.

References _, b, g, G_find_raster2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_percent(), G_warning(), NO_DATA_COL, r, Rast_free_colors(), Rast_lookup_c_colors(), and Rast_read_colors().

Referenced by GS_load_att_map().

◆ Gs_pack_colors_float()

void Gs_pack_colors_float	(	const char *	filename,
		float *	fbuf,
		int *	ibuf,
		int	rows,
		int	cols
	)

Pack color table (floating-point map)

Passed a array of floats that will be converted from cell values to packed colors (0xbbggrr) and float to int Floating point data not freed here, use: gsds_free_data_buff(id, ATTY_FLOAT)

Parameters

filename	raster map name
fbuf
ibuf
rows	number of rows
cols	number of cols

Definition at line 705 of file gs3.c.

References _, b, g, G_find_raster2(), G_free(), G_fully_qualified_name(), G_malloc, G_message(), G_percent(), G_warning(), NO_DATA_COL, r, Rast_free_colors(), Rast_lookup_f_colors(), and Rast_read_colors().

Referenced by GS_load_att_map().

◆ gs_point_in_region()

int gs_point_in_region	(	geosurf *	gs,
		float *	pt,
		float *	region
	)

Check if point is in region.

Check for cancel every CHK_FREQ points

Parameters

gs	surface (geosurf)
pt	point (array(X,Y,Z))
region	region settings (array (top,bottom,left,right))

Returns: 0 point outside of region; 1 point inside region

Definition at line 39 of file gpd.c.

References VCOL2X, VCOLS, VROW2Y, VROWS, X, and Y.

Referenced by gpd_2dsite().

◆ gs_point_is_masked()

int gs_point_is_masked	(	geosurf *	gs,
		float *	pt
	)

Check if point is masked.

Parameters

	gs	pointer to geosurf struct
[in]	pt	point coordinates (X,Y,Z)

Returns: 1 masked; 0 not masked

Definition at line 1314 of file gs.c.

References BM_get(), MASK_BL, MASK_BR, MASK_TL, MASK_TR, VCOL2DCOL, VCOL2X, VCOLS, VROW2DROW, VROW2Y, VROWS, VXRES, VYRES, X, X2VCOL, Y, and Y2VROW.

Referenced by gpd_2dsite(), GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_selected_point_on_surface(), GS_get_val_at_xy(), GS_is_masked(), gvd_draw_lineonsurf(), gvd_vect(), and viewcell_tri_interp().

◆ gs_put_label()

void gs_put_label	(	const char *	text,
		GLuint	fontbase,
		int	size,
		unsigned long	color,
		int *	pt
	)

Put label.

Todo:: Allocate label dynamically

Parameters

fontbase	fontbase settings
size	font size
color	font color
pt

Definition at line 41 of file gsd_label.c.

References _, b, do_label_display(), G_warning(), gsd_bgn_legend_viewport(), gsd_color_func(), gsd_end_legend_viewport(), gsd_get_txtwidth(), l, label_base, label_id, MAX_LIST, r, t, X, and Y.

◆ GS_ready_draw()

void GS_ready_draw ( void )

Definition at line 2488 of file gs2.c.

References G_debug(), and gsd_set_view().

Referenced by gk_follow_frames(), GK_set_tension(), GK_show_path(), GK_show_site(), GK_show_vect(), GK_show_vol(), gsd_bgn_legend_viewport(), gsd_get_los(), Nviz_draw_all(), Nviz_draw_all_site(), Nviz_draw_all_vect(), Nviz_draw_all_vol(), Nviz_draw_model(), Nviz_draw_quick(), and Nviz_resize_window().

◆ Gs_save_3dview()

int Gs_save_3dview	(	const char *	vname,
		geoview *	gv,
		geodisplay *	gd,
		struct Cell_head *	w,
		geosurf *	defsurf
	)

Save 3dview.

Parameters

vname	view name
gv	pointer to geoview struct
gd	pointer to geodisplay struct (unused)
w	current window
defsurf	default geosurf struct

Returns: -1 on error; ?

Definition at line 852 of file gs3.c.

References G_3dview::ambient, G_3dview::colorgrid, G_3dview::display_type, DM_COL_WIRE, DM_GOURAUD, DM_POLY, DM_WIRE, DM_WIRE_POLY, G_3dview::dozero, G_3dview::exag, G_3dview::fov, G_3dview::fringe, FROM, G_3dview::from_to, G_get_3dview_defaults(), G_mapset(), G_put_3dview(), GS_get_zrange(), GS_v3eq(), GS_v3mult(), gsd_model2real(), G_3dview::lightcol, G_3dview::lightpos, G_3dview::lightson, G_3dview::mesh_freq, NULL, G_3dview::pgm_id, G_3dview::poly_freq, G_3dview::shading, G_3dview::shine, strcpy, G_3dview::surfonly, TO, G_3dview::twist, W, X, Y, and Z.

Referenced by GS_save_3dview().

◆ GS_save_3dview()

int GS_save_3dview	(	const char *	vname,
		int	surfid
	)

Save 3d view.

Parameters

vname	view file name
surfid	surface id

Returns: ?

Definition at line 3315 of file gs2.c.

References gs_get_surf(), and Gs_save_3dview().

◆ gs_set_att_const()

int gs_set_att_const	(	geosurf *	gs,
		int	desc,
		float	constant
	)

Set attribute constant value.

Todo:: set typbuf constant

Parameters

gs	pointer to geosurf struct
desc	attribute id
constant	constant value

Returns: 0 on success; -1 on error

Definition at line 871 of file gs.c.

References ATT_MASK, CONST_ATT, G_debug(), gs_set_att_src(), and Gs_update_attrange().

Referenced by GS_set_att_const().

◆ GS_set_att_const()

int GS_set_att_const	(	int	id,
		int	att,
		float	constant
	)

Set attribute constant.

Parameters

id	surface id
att	attribute id
constant	value

Returns: ?

Definition at line 1405 of file gs2.c.

References gs_get_surf(), gs_set_att_const(), and Gs_update_attrange().

Referenced by Nviz_set_attr().

◆ GS_set_att_defaults()

void GS_set_att_defaults	(	float *	defs,
		float *	null_defs
	)

Set default attributes for map objects.

Parameters

defs	attributes array (dim MAX_ATTS)
null_defs	null attributes array (dim MAX_ATTS)

Definition at line 172 of file gs2.c.

References G_debug(), and MAX_ATTS.

Referenced by Nviz_set_surface_attr_default().

◆ gs_set_att_src()

int gs_set_att_src	(	geosurf *	gs,
		int	desc,
		int	src
	)

Set attribute source.

Parameters

gs	pointer to geosurf struct
desc	attribute id (descriptor)
src	source id

Returns: -1 on error; 0 on success

Definition at line 826 of file gs.c.

References ATT_TOPO, G_debug(), G_free(), gs_get_att_src(), gs_num_datah_reused(), gsds_free_datah(), LEGAL_SRC, MAP_ATT, and NULL.

Referenced by GS_load_att_map(), GS_new_surface(), gs_set_att_const(), and GS_unset_att().

◆ gs_set_att_type()

int gs_set_att_type	(	geosurf *	gs,
		int	desc,
		int	type
	)

Set attribute type.

Parameters

gs	pointer to geosurf struct
desc	attribute id
type	attribute type

Returns: -1 on error; 0 on success

Definition at line 802 of file gs.c.

References G_debug(), and LEGAL_TYPE.

Referenced by GS_load_att_map(), and gs_malloc_att_buff().

◆ GS_set_cancel()

void GS_set_cancel ( int c )

Set cancel.

Definition at line 40 of file gsx.c.

◆ GS_Set_ClientData()

int GS_Set_ClientData	(	int	id,
		void *	clientd
	)

Set client data.

Parameters

id	surface id
clientd	pointer to client data struct

Returns: 1 on success; -1 on error (invalid surface id)

Definition at line 1478 of file gs2.c.

References gs_get_surf().

◆ GS_set_cplane()

void GS_set_cplane ( int num )

Set cplace.

Parameters

num cplane id

Definition at line 3214 of file gs2.c.

References gsd_cplane_on().

Referenced by Nviz_on_cplane().

◆ GS_set_cplane_rot()

void GS_set_cplane_rot	(	int	num,
		float	dx,
		float	dy,
		float	dz
	)

Set cplace rotation.

Parameters

num	cplace id
dx,dy,dz	rotation values

Definition at line 3122 of file gs2.c.

References gsd_cplane_setrot().

Referenced by Nviz_set_cplane_rotation().

◆ GS_set_cplane_trans()

void GS_set_cplane_trans	(	int	num,
		float	dx,
		float	dy,
		float	dz
	)

Set cplace trans.

Parameters

num	cplace id
dx,dy,dz	rotation values

Definition at line 3135 of file gs2.c.

References gsd_cplane_settrans().

Referenced by Nviz_set_cplane_translation().

◆ GS_set_cxl_func()

void GS_set_cxl_func ( void(*)(void) f )

Set cxl function.

Parameters

f	pointer to function

Definition at line 52 of file gsx.c.

References Cxl_func.

◆ gs_set_defaults()

void gs_set_defaults	(	geosurf *	gs,
		float *	defs,
		float *	null_defs
	)

Set default attribute values.

Parameters

gs	pointer to geosurf struct
defs	array of default values (dim MAX_ATTRS)
null_defs	array of null default values (dim MAX_ATTRS)

Definition at line 441 of file gs.c.

References G_debug(), MAX_ATTS, NOTSET_ATT, and NULL.

Referenced by GS_new_surface().

◆ GS_set_draw()

void GS_set_draw ( int where )

Sets which buffer to draw to.

Parameters

where GSD_BOTH, GSD_FRONT, GSD_BACK

Definition at line 2462 of file gs2.c.

References GSD_BACK, gsd_backbuffer(), GSD_BOTH, gsd_bothbuffers(), GSD_FRONT, and gsd_frontbuffer().

Referenced by gk_follow_frames(), GK_set_tension(), GK_show_path(), GK_show_site(), GK_show_vect(), GK_show_vol(), gsd_bgn_legend_viewport(), gsd_end_legend_viewport(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_get_los(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), Nviz_draw_all(), Nviz_draw_all_site(), Nviz_draw_all_vect(), Nviz_draw_all_vol(), Nviz_draw_image(), Nviz_draw_model(), Nviz_draw_quick(), and Nviz_resize_window().

◆ GS_set_drawmode()

int GS_set_drawmode	(	int	id,
		int	mode
	)

Set draw mode.

Parameters

id	surface id
mode	mode type(s)

Returns: 0 on success; -1 on error (invalid surface id)

Definition at line 2084 of file gs2.c.

References G_debug(), and gs_get_surf().

Referenced by GS_setall_drawmode(), and Nviz_set_attr().

◆ GS_set_drawres()

int GS_set_drawres	(	int	id,
		int	xres,
		int	yres,
		int	xwire,
		int	ywire
	)

Set draw resolution for surface.

Parameters

id	surface id
xres,yres	x/y resolution value
xwire,ywire	x/y wire value

Returns: -1 on error; 0 on success

Definition at line 2222 of file gs2.c.

References G_debug(), and gs_get_surf().

Referenced by GS_setall_drawres(), and Nviz_set_attr().

◆ GS_set_exag()

void GS_set_exag	(	int	id,
		float	exag
	)

Set Z exag for surface.

Parameters

id	surface id
exag	z-exag value

Definition at line 1954 of file gs2.c.

References G_debug(), and gs_get_surf().

◆ GS_set_fencecolor()

void GS_set_fencecolor ( int mode )

Set fence color.

Parameters

mode mode id

Definition at line 3255 of file gs2.c.

References gsd_setfc().

Referenced by Nviz_set_fence_color().

◆ GS_set_focus()

void GS_set_focus ( float * realto )

Set focus.

Parameters

realto real coordinates to

Definition at line 2520 of file gs2.c.

References G_debug(), GS_v3eq(), and gsd_set_view().

Referenced by GS_init_view(), Gs_load_3dview(), GS_look_here(), GS_set_focus_center_map(), GVL_set_focus_center_map(), and Nviz_set_focus().

◆ GS_set_focus_center_map()

void GS_set_focus_center_map ( int id )

Set focus to map center.

Parameters

id	surface id

Definition at line 2581 of file gs2.c.

References G_debug(), gs_get_surf(), GS_set_focus(), X, Y, and Z.

Referenced by Nviz_set_focus_map().

◆ GS_set_focus_real()

void GS_set_focus_real ( float * realto )

Set real focus.

Parameters

realto real coordinates to

Definition at line 2538 of file gs2.c.

References G_get_set_window(), GS_v3eq(), gsd_set_view(), X, and Y.

◆ GS_set_fov()

void GS_set_fov ( int fov )

Set field of view.

Parameters

fov fov value

Definition at line 2841 of file gs2.c.

Referenced by gk_follow_frames(), Gs_load_3dview(), and Nviz_set_viewpoint_persp().

◆ GS_set_global_exag()

void GS_set_global_exag ( float exag )

Set global z-exag value.

Parameters

exag	exag value to be set up

Definition at line 1978 of file gs2.c.

References G_debug().

Referenced by Gs_load_3dview(), and Nviz_change_exag().

◆ GS_set_infocus()

void GS_set_infocus ( void )

Set focus.

Make sure that the center of view is set

Definition at line 2965 of file gs2.c.

References G_debug().

Referenced by Nviz_set_focus_state().

◆ GS_set_light_reset()

void GS_set_light_reset ( int i )

Definition at line 250 of file gs2.c.

Referenced by GS_new_light(), and Nviz_init_data().

◆ gs_set_maskmode()

void gs_set_maskmode ( int invert )

Set geosurf mask mode.

Parameters

invert invert mask

Definition at line 899 of file gs.c.

Referenced by gs_update_curmask().

◆ GS_set_maskmode()

int GS_set_maskmode	(	int	id,
		int	mode
	)

Set mask mode.

Mask attribute special: constant is set to indicate invert or no

Parameters

id	surface id
mode	id

Returns: mode id; -1 on error (invalid surface id)

Definition at line 1429 of file gs2.c.

References ATT_MASK, and gs_get_surf().

◆ GS_set_Narrow()

void GS_set_Narrow	(	int *	pt,
		int	id,
		float *	pos2
	)

Set decoration, north arrow ??

Todo:: scale used to calculate len of arrow still needs work needs go function that returns center / eye distance gsd_get_los function is not working correctly ??

Parameters

	pt	point value in true world coordinates (?)
	id	surface id
[out]	pos2	output coordinates

Definition at line 564 of file gs2.c.

References GS_get_selected_point_on_surface(), gs_get_surf(), gsd_do_scale(), gsd_pushmatrix(), X, x, Y, and Z.

Referenced by Nviz_set_arrow(), and Nviz_set_scalebar().

◆ GS_set_nofocus()

void GS_set_nofocus ( void )

Unset focus.

Definition at line 2951 of file gs2.c.

References G_debug().

Referenced by GS_set_viewdir(), Nviz_set_focus_map(), and Nviz_set_focus_state().

◆ GS_set_nozero()

void GS_set_nozero	(	int	id,
		int	att,
		int	mode
	)

Set no-zero ?

Parameters

id	surface id
att	attribute id
mode	mode id

Definition at line 2132 of file gs2.c.

References ATT_COLOR, ATT_TOPO, G_debug(), and gs_get_surf().

◆ GS_set_rotation()

void GS_set_rotation	(	double	angle,
		double	x,
		double	y,
		double	z
	)

Set rotation params.

Definition at line 2885 of file gs2.c.

References x.

Referenced by Nviz_set_rotation().

◆ GS_set_rotation_matrix()

void GS_set_rotation_matrix ( double * matrix )

Set rotation matrix.

Definition at line 2939 of file gs2.c.

◆ GS_set_SDscale()

int GS_set_SDscale ( float scale )

Set ?

Parameters

scale scale value

Returns: 1

Definition at line 1064 of file gs2.c.

References gsdiff_set_SDscale().

◆ GS_set_SDsurf()

int GS_set_SDsurf ( int id )

Set surface as Scaled Difference surface.

Parameters

id	surface id

Returns: 1 on success; 0 on error, invalid surface id

Definition at line 1043 of file gs2.c.

References gs_get_surf(), and gsdiff_set_SDref().

◆ GS_set_trans()

void GS_set_trans	(	int	id,
		float	xtrans,
		float	ytrans,
		float	ztrans
	)

Set translation (surface position)

Parameters

id	surface id
xtrans,ytrans,ztrans	translation values

Definition at line 2392 of file gs2.c.

References G_debug(), and gs_get_surf().

◆ GS_set_twist()

void GS_set_twist ( int t )

Set viewpoint twist value.

10ths of degrees off twelve o'clock

Parameters

t	tenths of degrees clockwise from 12:00.

Definition at line 2875 of file gs2.c.

References t.

Referenced by gk_follow_frames(), Gs_load_3dview(), and Nviz_set_viewpoint_twist().

◆ GS_set_viewdir()

void GS_set_viewdir ( float * dir )

Set viewdir.

Automatically turns off focus

Parameters

dir	viewdir value

Definition at line 2821 of file gs2.c.

References FROM, GS_set_nofocus(), GS_v3add(), GS_v3eq(), GS_v3norm(), gsd_set_view(), and TO.

Referenced by gk_follow_frames(), and Nviz_flythrough().

◆ GS_set_viewport()

void GS_set_viewport	(	int	left,
		int	right,
		int	bottom,
		int	top
	)

Set viewport.

Parameters

left,right,bottom,top viewport extent values

Definition at line 2979 of file gs2.c.

References Cell_head::bottom, G_debug(), gsd_viewport(), and Cell_head::top.

Referenced by Nviz_resize_window().

◆ GS_set_wire_color()

void GS_set_wire_color	(	int	id,
		int	colr
	)

Set wire color.

Todo:: error-handling

Parameters

id	surface id
colr	color value

Definition at line 2015 of file gs2.c.

References G_debug(), and gs_get_surf().

◆ GS_setall_drawmode()

int GS_setall_drawmode ( int mode )

Set all draw-modes.

Parameters

mode mode id

Returns: 0 on success; -1 on error

Definition at line 2062 of file gs2.c.

References GS_set_drawmode().

Referenced by Gs_load_3dview().

◆ GS_setall_drawres()

int GS_setall_drawres	(	int	xres,
		int	yres,
		int	xwire,
		int	ywire
	)

Set all draw resolutions.

Parameters

xres,yres	x/y resolution value
xwire,ywire	x/y wire value

Returns: 0 on success; -1 on error

Definition at line 2199 of file gs2.c.

References GS_set_drawres().

Referenced by Gs_load_3dview().

◆ gs_setall_norm_needupdate()

int gs_setall_norm_needupdate ( void )

Set for geosurf need-to-update mark.

Returns: -1 no surface available; 1 on success

Definition at line 1287 of file gs.c.

◆ GS_setlight_ambient()

void GS_setlight_ambient	(	int	num,
		float	red,
		float	green,
		float	blue
	)

Set light ambient.

Red, green, blue from 0.0 to 1.0

Parameters

num	light id (starts at 1)
red,green,blue	color values

Definition at line 400 of file gs2.c.

References gsd_deflight().

Referenced by Nviz_set_light_ambient().

◆ GS_setlight_color()

void GS_setlight_color	(	int	num,
		float	red,
		float	green,
		float	blue
	)

Set light color.

Parameters

num	light id (starts at 1)
red,green,blue	color values (from 0.0 to 1.0)

Definition at line 356 of file gs2.c.

References gsd_deflight().

Referenced by Nviz_set_light_bright(), and Nviz_set_light_color().

◆ GS_setlight_position()

void GS_setlight_position	(	int	num,
		float	xpos,
		float	ypos,
		float	zpos,
		int	local
	)

Set light position.

Bug:: I think lights array doesn't match sgi_light array

Parameters

num	light id (starts with 1)
xpos,ypos,zpos	coordinates (model)
local	local coordinate (for viewport)

Definition at line 309 of file gs2.c.

References gsd_deflight(), W, X, Y, and Z.

Referenced by gk_follow_frames(), Nviz_draw_all_surf(), and Nviz_set_light_position().

◆ gs_setlos_enterdata()

int gs_setlos_enterdata ( Point3 * los )

Gets all current cutting planes & data bounding planes

Intersects los with resulting convex polyhedron, then replaces los[FROM] with first point on ray inside data.

Parameters

[out] los

Returns: 0 on failure; 1 on success

Definition at line 529 of file gs_query.c.

References FROM, FRONTFACE, GS_distance(), gs_get_databounds_planes(), GS_v3add(), GS_v3dir(), GS_v3mult(), gsd_get_cplanes(), MISSED, RayCvxPolyhedronInt(), and TO.

Referenced by GS_get_selected_point_on_surface().

◆ GS_surf_exists()

int GS_surf_exists ( int id )

Check if surface exists

Parameters

id	surface id

Returns: 0 not found; 1 found

Definition at line 194 of file gs2.c.

References G_debug(), gs_get_surf(), and NULL.

Referenced by GP_select_surf(), GS_delete_surface(), GV_select_surf(), Nviz_new_fringe(), and Nviz_set_fringe().

◆ GS_switchlight()

void GS_switchlight	(	int	num,
		int	on
	)

Switch on/off light.

Parameters

num	light id (starts at 1)
on	non-zero for 'on' otherwise 'off'

Definition at line 470 of file gs2.c.

References gsd_switchlight().

◆ GS_transp_is_set()

int GS_transp_is_set ( void )

Check if transparency is set.

Returns: 0 transparency not set; 1 transparency is set

Definition at line 489 of file gs2.c.

References ATT_TRANSP, FC_GREY, gs_att_is_set(), gsd_getfc(), and NULL.

◆ GS_unset_att()

int GS_unset_att	(	int	id,
		int	att
	)

Unset attribute.

Parameters

id	surface id
att	attribute id

Returns: ?

Definition at line 1386 of file gs2.c.

References gs_get_surf(), gs_set_att_src(), and NOTSET_ATT.

Referenced by Nviz_unset_attr().

◆ GS_unset_cplane()

void GS_unset_cplane ( int num )

Unset clip place (turn off)

Parameters

num cplane id

Definition at line 3226 of file gs2.c.

References gsd_cplane_off().

Referenced by Nviz_off_cplane().

◆ GS_unset_rotation()

void GS_unset_rotation ( void )

Stop scene rotation.

Definition at line 2899 of file gs2.c.

Referenced by Nviz_unset_rotation().

◆ GS_unset_SDsurf()

void GS_unset_SDsurf ( void )

Unset Scaled Difference surface.

Definition at line 1027 of file gs2.c.

References gsdiff_set_SDref(), and NULL.

◆ Gs_update_attrange()

int Gs_update_attrange	(	geosurf *	gs,
		int	desc
	)

Update no_zero ranges for attribute (actually no_null now)

Parameters

gs	pointer to geosurf struct
desc	attribute id (descriptor)

Returns: -1 on error; 1 on success

Definition at line 1084 of file gs3.c.

References ATT_TOPO, CF_COLOR_PACKED, CONST_ATT, G_debug(), gs_get_att_src(), gsds_get_changed(), gsds_get_typbuff(), INIT_MINMAX, max, min, NULL, and SET_MINMAX.

Referenced by GS_load_att_map(), gs_set_att_const(), and GS_set_att_const().

◆ gs_update_curmask()

int gs_update_curmask ( geosurf * surf )

Update current maps.

Parameters

surf	surface (geosurf)

Returns: 0; 1

Definition at line 228 of file gs_bm.c.

References ATT_COLOR, ATT_MASK, ATT_TOPO, BM_create(), BM_destroy(), BM_set(), G_debug(), gs_get_att_typbuff(), gs_mapcolor(), gs_mask_defined(), gs_masked(), gs_set_maskmode(), gsbm_make_mask(), gsbm_or_masks(), gsbm_ornot_masks(), gsbm_zero_mask(), MAP_ATT, NULL, and NULL_COLOR.

Referenced by gpd_2dsite(), gs_calc_normals(), GS_load_att_map(), GS_update_curmask(), gsd_coarse_surf_map(), gsd_norm_arrows(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), and gvd_vect().

◆ GS_update_curmask()

int GS_update_curmask ( int id )

Update current mask.

May be called to update total mask for a surface at convenient times instead of waiting until ready to redraw surface

Parameters

id	surface id

Returns: ?

Definition at line 991 of file gs2.c.

References gs_get_surf(), and gs_update_curmask().

◆ GS_update_normals()

int GS_update_normals ( int id )

Update normals.

Parameters

id	surface id

Returns: ?

Definition at line 1113 of file gs2.c.

References gs_calc_normals(), and gs_get_surf().

◆ GS_v2dir()

void GS_v2dir	(	float *	v1,
		float *	v2,
		float *	v3
	)

Get a normalized direction from v1 to v2, store in v3 (2D)

Parameters

[in]	v1	first 2D vector (X,Y)
[in]	v2	second 2D vector (X,Y)
[out]	v3	output 2D vector (X,Y)

Returns: 0 if magnitude of dx is zero; 1 if magnitude of dx > 0

Definition at line 382 of file gs_util.c.

References X, and Y.

◆ GS_v2norm()

int GS_v2norm ( float * v1 )

Change v1 so that it is a unit vector (2D)

Parameters

[in,out] v1 2D vector (X,Y)

Returns: 0 if magnitude of v1 is zero; 1 if magnitude of v1 > 0

Definition at line 271 of file gs_util.c.

References X, and Y.

Referenced by GS_draw_flowline_at_xy().

◆ GS_v3add()

void GS_v3add	(	float *	v1,
		float *	v2
	)

Sum vectors.

v1 += v2

Parameters

[in,out]	v1	first 3D vector (X,Y,Z)
[in]	v2	second 3D vector (X,Y,Z)

Definition at line 195 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_moveto(), GS_set_viewdir(), gs_setlos_enterdata(), and gsd_arrow_onsurf().

◆ GS_v3cross()

void GS_v3cross	(	float *	v1,
		float *	v2,
		float *	v3
	)

Get the cross product v3 = v1 cross v2.

Parameters

[in]	v1	first 3D vector (X,Y,Z)
[in]	v2	second 3D vector (X,Y,Z)
[out]	v3	output 3D vector (X,Y,Z)

Definition at line 403 of file gs_util.c.

References X, Y, and Z.

Referenced by gsd_arrow_onsurf(), gsd_surf_map_old(), and Gv_load_vect().

◆ GS_v3dir()

int GS_v3dir	(	float *	v1,
		float *	v2,
		float *	v3
	)

Get a normalized direction from v1 to v2, store in v3.

Parameters

[in]	v1	first 3D vector (X,Y,Z)
[in]	v2	second 3D vector (X,Y,Z)
[out]	v3	output 3D vector (X,Y,Z)

Returns: 0 if magnitude of dx is zero; 1 if magnitude of dx > 0

Definition at line 351 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_get_modelposition(), GS_get_viewdir(), GS_look_here(), gs_los_intersect(), gs_los_intersect1(), gs_setlos_enterdata(), gsd_arrow_onsurf(), gsd_get_zup(), and Nviz_set_cplane_here().

◆ GS_v3eq()

void GS_v3eq	(	float *	v1,
		float *	v2
	)

Copy vector values.

v1 = v2

Parameters

[out]	v1	first 3D vector (X,Y,Z)
[in]	v2	second 3D vector (X,Y,Z)

Definition at line 178 of file gs_util.c.

References X, Y, and Z.

Referenced by gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_get_focus(), GS_get_from(), GS_get_from_real(), GS_get_selected_point_on_surface(), GS_get_to(), GS_init_view(), gs_los_intersect(), GS_moveto(), Gs_save_3dview(), GS_set_focus(), GS_set_focus_real(), GS_set_viewdir(), gsd_arrow_onsurf(), gsd_check_focus(), gsd_surf_map_old(), gsd_wall(), gsd_zup_twist(), gsdrape_get_allsegments(), and gsdrape_get_segments().

◆ GS_v3mag()

void GS_v3mag	(	float *	v1,
		float *	mag
	)

Magnitude of vector.

Parameters

[in]	v1	3D vector (X,Y,Z)
[out]	mag	magnitude value

Definition at line 418 of file gs_util.c.

References X, Y, and Z.

Referenced by gsd_arrow_onsurf(), and gsd_surf_map_old().

◆ GS_v3mult()

void GS_v3mult	(	float *	v1,
		float	k
	)

Multiple vectors.

v1 *= k

Parameters

[in,out]	v1	3D vector (X,Y,Z)
[in]	k	multiplicator

Definition at line 229 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_look_here(), Gs_save_3dview(), gs_setlos_enterdata(), gsd_arrow_onsurf(), gsd_check_focus(), and Nviz_set_cplane_here().

◆ GS_v3norm()

int GS_v3norm ( float * v1 )

Change v1 so that it is a unit vector (3D)

Parameters

[in,out] v1 3D vector (X,Y,Z)

Returns: 0 if magnitude of v1 is zero; 1 if magnitude of v1 > 0

Definition at line 246 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_set_viewdir(), gsd_3darrow(), gsd_arrow(), gsd_draw_cplane_fence(), and iso_calc_cube().

◆ GS_v3normalize()

int GS_v3normalize	(	float *	v1,
		float *	v2
	)

Change v2 so that v1v2 is a unit vector.

Parameters

[in]	v1	first 3D vector (X,Y,Z)
[in,out]	v2	second 3D vector (X,Y,Z)

Returns: 0 if magnitude of dx is zero; 1 if magnitude of dx > 0

Definition at line 321 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_init_view(), GS_moveto(), and gsd_check_focus().

◆ GS_v3sub()

void GS_v3sub	(	float *	v1,
		float *	v2
	)

Subtract vectors.

v1 -= v2

Parameters

[in,out]	v1	first 3D vector (X,Y,Z)
	v2	second 3D vector (X,Y,Z)

Definition at line 212 of file gs_util.c.

References X, Y, and Z.

Referenced by GS_moveto(), and gsd_surf_map_old().

◆ GS_write_ppm()

int GS_write_ppm ( const char * name )

Save current GL screen to ppm file.

Parameters

name file name

Returns: 1 on failure; 0 on success

Definition at line 41 of file gsd_img_ppm.c.

References _, b, g, G_free(), G_warning(), gsd_getimage(), name, NULL, r, and x.

◆ GS_write_tif()

int GS_write_tif ( const char * name )

Write data to tif file.

Parameters

name filename

Returns: 1 on error; 0 on success

Definition at line 53 of file gsd_img_tif.c.

References _, config, G_free(), G_malloc, G_warning(), gsd_getimage(), name, NULL, rowsperstrip, and x.

◆ GS_write_zoom()

int GS_write_zoom	(	const char *	name,
		unsigned int	xsize,
		unsigned int	ysize
	)

Write zoom to file.

Parameters

name	file name
xsize,ysize

Returns: 1 on failure; 0 on success

Definition at line 87 of file gsd_img_ppm.c.

References _, b, free(), g, G_warning(), gsd_writeView(), name, NULL, r, and x.

◆ GS_zoom_setup()

void GS_zoom_setup	(	int *	a,
		int *	b,
		int *	c,
		int *	d,
		int *	maxx,
		int *	maxy
	)

Get zoom setup.

Parameters

[out]	a,b,c,d	current viewport settings
[out]	maxx,maxy	max viewport size

Definition at line 2770 of file gs2.c.

References b, and gsd_getViewport().

◆ gsbm_and_masks()

int gsbm_and_masks	(	struct BM *	bmvar,
		struct BM *	bmcon
	)

Mask bitmap (mask type ADD)

Must be same size, ADDs bitmaps & stores in bmvar

Parameters

bmvar	bitmap (BM) to changed
bmcon	bitmap (BM)

Returns: -1 on failure (bitmap mispatch); 0 on success

Definition at line 199 of file gs_bm.c.

References MASK_AND.

◆ gsbm_make_mask()

struct BM * gsbm_make_mask	(	typbuff *	frombuff,
		float	maskval,
		int	rows,
		int	cols
	)

Do combining of bitmaps, make bitmaps from other data w/maskval.

Parameters

frombuff	data buffer
maskval	mask type
rows	number of rows
cols	number of cols

Returns: pointer to BM struct

Definition at line 35 of file gs_bm.c.

References BM_create(), BM_get(), BM_set(), BM::cols, GET_MAPATT, and BM::rows.

Referenced by gs_update_curmask().

◆ gsbm_or_masks()

int gsbm_or_masks	(	struct BM *	bmvar,
		struct BM *	bmcon
	)

Mask bitmap (mask type OR)

Must be same size, ORs bitmaps & stores in bmvar

Parameters

bmvar	bitmap (BM) to changed
bmcon	bitmap (BM)
mask_type	mask type (see mask types macros)

Returns: -1 on failure (bitmap mispatch); 0 on success

Definition at line 167 of file gs_bm.c.

References MASK_OR.

Referenced by gs_update_curmask().

◆ gsbm_ornot_masks()

int gsbm_ornot_masks	(	struct BM *	bmvar,
		struct BM *	bmcon
	)

Mask bitmap (mask type ORNOT)

Must be same size, ORNOTs bitmaps & stores in bmvar

Parameters

bmvar	bitmap (BM) to changed
bmcon	bitmap (BM)

Returns: -1 on failure (bitmap mispatch); 0 on success

Definition at line 183 of file gs_bm.c.

References MASK_ORNOT.

Referenced by gs_update_curmask().

◆ gsbm_xor_masks()

int gsbm_xor_masks	(	struct BM *	bmvar,
		struct BM *	bmcon
	)

Mask bitmap (mask type XOR)

Must be same size, XORs bitmaps & stores in bmvar

Parameters

bmvar	bitmap (BM) to changed
bmcon	bitmap (BM)

Returns: -1 on failure (bitmap mispatch); 0 on success

Definition at line 215 of file gs_bm.c.

References MASK_XOR.

◆ gsbm_zero_mask()

void gsbm_zero_mask ( struct BM * map )

Zero mask.

Parameters

map	pointer to BM struct

Definition at line 77 of file gs_bm.c.

References BM::bytes, BM::data, and BM::rows.

Referenced by gs_update_curmask().

◆ gsd_3darrow()

void gsd_3darrow	(	float *	center,
		unsigned long	colr,
		float	siz1,
		float	siz2,
		float *	dir,
		float	sz
	)

Draw 3d north arrow.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the arrow.
siz1	size
siz2	size
dir	Direction of the arrow. Pointer to a float array representing the 3D vector (X,Y,Z).
sz	height

Definition at line 1111 of file gsd_objs.c.

References dir_to_slope_aspect(), G_debug(), GS_v3norm(), gsd_backface(), gsd_bgnlist(), gsd_calllist(), gsd_color_func(), gsd_endlist(), gsd_getshademodel(), gsd_makelist(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_shademodel(), gsd_translate(), primitive_cone(), primitive_cylinder(), X, Y, and Z.

Referenced by gsd_norm_arrows().

◆ gsd_3dcursor()

void gsd_3dcursor ( float * pt )

Draw 3d cursor.

Parameters

[in] pt point

Definition at line 719 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), X, Y, and Z.

◆ gsd_arrow()

int gsd_arrow	(	float *	center,
		unsigned long	colr,
		float	siz,
		float *	dir,
		float	sz,
		geosurf *	onsurf
	)

Draws an arrow.

siz is height, sz is global exag to correct for.

If onsurf in non-null, z component of dir is dropped and line-on-suf is used, resulting in length of arrow being proportional to slope.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the arrow.
siz	Size of the arrow.
dir	Direction of the arrow. Pointer to a float array representing the 3D vector (X,Y,Z).
sz	height, sz is global exag to correct for.
onsurf	surface (geosurf).

Returns: 1 no surface given; 0 on surface

Definition at line 948 of file gsd_objs.c.

References dir_to_slope_aspect(), GS_P2distance(), GS_v3norm(), gsd_arrow_onsurf(), gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_translate(), gsd_vert_func(), NULL, ORIGIN, UP_NORM, X, Y, and Z.

Referenced by gsd_norm_arrows(), and gsd_wire_arrows().

◆ gsd_arrow_onsurf()

int gsd_arrow_onsurf	(	float *	base,
		float *	tip,
		unsigned long	colr,
		int	wid,
		geosurf *	gs
	)

Draw north arrow on surface.

Parameters

base	Pointer to a float array representing the base as a 2D vector (X,Y).
tip	Pointer to a float array representing the tip as a 2D vector (X,Y).
colr	Integer representing the color to use for drawing the arrow.
wid	Line width (see gsd_linewidth)
gs	surface (geosurf)

Returns: 0

Definition at line 1022 of file gsd_objs.c.

References DOWN_NORM, G_debug(), GS_v3add(), GS_v3cross(), GS_v3dir(), GS_v3eq(), GS_v3mag(), GS_v3mult(), gsd_color_func(), gsd_disc(), gsd_line_onsurf(), gsd_linewidth(), UP_NORM, X, Y, and Z.

Referenced by gsd_arrow().

◆ gsd_backbuffer()

void gsd_backbuffer ( void )

Draw to the back buffer.

Definition at line 470 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_backface()

void gsd_backface ( int n )

ADD.

Parameters

n

Definition at line 254 of file gsd_prim.c.

Referenced by GS_draw_lighting_model(), GS_draw_lighting_model1(), and gsd_3darrow().

◆ gsd_bgn_legend_viewport()

void gsd_bgn_legend_viewport	(	GLint	wl,
		GLint	wb,
		GLint	wr,
		GLint	wt
	)

ADD.

Parameters

wl
wb
wr
wt

Definition at line 61 of file gsd_legend.c.

References CM_COLOR, GS_ready_draw(), GS_set_draw(), gsd_colormode(), GSD_FRONT, gsd_linewidth(), gsd_popmatrix(), and gsd_pushmatrix().

Referenced by gs_put_label(), and gsd_put_legend().

◆ gsd_bgnline()

void gsd_bgnline ( void )

Begin line.

Definition at line 397 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_vert_line(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_put_legend(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_bgnlist()

void gsd_bgnlist	(	int	listno,
		int	do_draw
	)

ADD.

Parameters

listno
do_draw

Definition at line 1125 of file gsd_prim.c.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_bgnpolygon()

void gsd_bgnpolygon ( void )

Delimit the vertices of a primitive or a group of like primitives.

Definition at line 372 of file gsd_prim.c.

Referenced by gsd_box(), gsd_cube(), gsd_diamond(), gsd_draw_cplane(), gsd_north_arrow(), gsd_scalebar(), gsd_surf_const(), and gvld_isosurf().

◆ gsd_bgnqstrip()

void gsd_bgnqstrip ( void )

ADD.

Definition at line 277 of file gsd_prim.c.

Referenced by gsd_fringe_horiz_poly(), gsd_fringe_vert_poly(), and primitive_cylinder().

◆ gsd_bgntfan()

void gsd_bgntfan ( void )

ADD.

Definition at line 337 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), primitive_cone(), and primitive_cylinder().

◆ gsd_bgntmesh()

void gsd_bgntmesh ( void )

ADD.

Definition at line 297 of file gsd_prim.c.

Referenced by gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map_old(), gsd_triangulated_wall(), and gvld_slice().

◆ gsd_bgntstrip()

void gsd_bgntstrip ( void )

ADD.

Definition at line 317 of file gsd_prim.c.

◆ gsd_blend()

void gsd_blend ( int yesno )

Specify pixel arithmetic.

Parameters

yesno turn on/off

Definition at line 994 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_draw_cplane(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slice(), and gvld_slices().

◆ gsd_bothbuffers()

void gsd_bothbuffers ( void )

Draw to the front and back buffers.

Definition at line 446 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_box()

void gsd_box	(	float *	center,
		int	colr,
		float *	siz
	)

Draws a box at the specified center location.

This function renders a box at the given center coordinates with the specified color and size.

Warning: siz is an array (we need it for scale only Z in histograms)

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 1475 of file gsd_objs.c.

References Box, BoxN, gsd_bgnpolygon(), gsd_endpolygon(), gsd_getshademodel(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_shademodel(), gsd_translate(), X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_call_label()

void gsd_call_label ( void )

Call display list and draw defined labels – called from gsd_prim (gsd_call_lists)

Definition at line 119 of file gsd_label.c.

References label_base, and MAX_LIST.

Referenced by gsd_calllists().

◆ gsd_calllist()

void gsd_calllist ( int listno )

ADD.

Parameters

listno

Definition at line 1173 of file gsd_prim.c.

Referenced by GS_draw_list(), and gsd_3darrow().

◆ gsd_calllists()

void gsd_calllists ( int listno )

ADD.

Parameters

listno [unused]

Definition at line 1185 of file gsd_prim.c.

References gsd_call_label(), gsd_popmatrix(), gsd_pushmatrix(), and MAX_OBJS.

Referenced by GS_draw_all_list().

◆ gsd_check_focus()

void gsd_check_focus ( geoview * gv )

Check focus.

Parameters

gv	view (geoview)

Definition at line 216 of file gsd_views.c.

References FROM, GS_get_zrange(), GS_v3eq(), GS_v3mult(), GS_v3normalize(), TO, and Z.

Referenced by gsd_set_view().

◆ gsd_checkpoint()

int gsd_checkpoint	(	float	pt[4],
		int	window[4],
		int	viewport[4],
		double	modelMatrix[16],
		double	projMatrix[16]
	)

ADD.

Parameters

pt
window
viewport
doubleMatrix
projMatrix

Returns: 0; 1

Definition at line 585 of file gsd_prim.c.

References X, Y, and Z.

Referenced by gpd_2dsite(), gpd_3dsite(), gsd_surf_const(), gsd_surf_map(), and gsd_surf_map_old().

◆ gsd_checkwindow()

void gsd_checkwindow	(	int *	,
		int *	,
		double *	,
		double *
	)

◆ gsd_circ()

void gsd_circ	(	float	x,
		float	y,
		float	rad
	)

ADD.

Parameters

x,y
rad

Definition at line 167 of file gsd_prim.c.

References x.

Referenced by gsd_draw_gyro().

◆ gsd_coarse_surf_map()

int gsd_coarse_surf_map ( geosurf * surf )

Draw coarse surface.

New (TEST) wire routine that draws low res surface Based on new Triangle Fan routine Resolution is a function of current surface resolution times wire resolution

Todo:: normals have to be recalculated before proper low res surface can be drawn

In window optimization has been removed

Parameters

surf	surface (geosurf)

Returns

Definition at line 572 of file gsd_wire.c.

References ATT_COLOR, ATT_EMIT, ATT_SHINE, ATT_TOPO, ATT_TRANSP, CM_DIFFUSE, CONST_ATT, FNORM, GET_MAPATT, gs_calc_normals(), gs_get_att_typbuff(), GS_get_scale(), GS_global_exag(), gs_mapcolor(), gs_update_curmask(), gsd_bgntfan(), gsd_blend(), gsd_colormode(), gsd_do_scale(), gsd_endtfan(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_surf_const(), gsd_translate(), gsd_zwritemask(), MAP_ATT, SCALE_ATT, VCOLS, VROWS, X, Y, and Z.

Referenced by gsd_wire_surf().

◆ gsd_color_func()

void gsd_color_func ( unsigned int col )

Set current color.

Parameters

col	color value

Definition at line 698 of file gsd_prim.c.

References b, g, INT_TO_ALP, INT_TO_BLU, INT_TO_GRN, INT_TO_RED, and r.

Referenced by gk_draw_path(), gpd_obj(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), gs_put_label(), gsd_3darrow(), gsd_arrow(), gsd_arrow_onsurf(), gsd_display_fringe(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_drawsphere(), gsd_get_los(), gsd_litvert_func(), gsd_north_arrow(), gsd_plus(), gsd_put_legend(), gsd_scalebar(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_colormode()

void gsd_colormode ( int cm )

Set color mode.

Call glColorMaterial before enabling the GL_COLOR_MATERIAL

Parameters

cm	color mode value

Definition at line 98 of file gsd_prim.c.

References CM_AD, CM_COLOR, CM_DIFFUSE, CM_EMISSION, and CM_NULL.

Referenced by gk_draw_path(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), gsd_bgn_legend_viewport(), gsd_coarse_surf_map(), gsd_display_fringe(), gsd_norm_arrows(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_cplane_off()

void gsd_cplane_off ( int num )

Turn off clip plane.

Parameters

num cplane id

Definition at line 126 of file gsd_cplane.c.

References gsd_set_clipplane().

Referenced by GS_draw_lighting_model(), and GS_unset_cplane().

◆ gsd_cplane_on()

void gsd_cplane_on ( int num )

ADD.

Parameters

num

Definition at line 104 of file gsd_cplane.c.

References gsd_def_cplane(), and gsd_set_clipplane().

Referenced by GS_draw_lighting_model(), and GS_set_cplane().

◆ gsd_cplane_setrot()

void gsd_cplane_setrot	(	int	num,
		float	rx,
		float	ry,
		float	rz
	)

ADD.

Parameters

num
rx,ry,rz

Definition at line 211 of file gsd_cplane.c.

References gsd_def_cplane(), gsd_update_cpnorm(), X, Y, and Z.

Referenced by GS_set_cplane_rot().

◆ gsd_cplane_settrans()

void gsd_cplane_settrans	(	int	num,
		float	tx,
		float	ty,
		float	tz
	)

ADD.

Parameters

num
tx,ty,tz

Definition at line 229 of file gsd_cplane.c.

References gsd_def_cplane(), X, Y, and Z.

Referenced by GS_set_cplane_trans().

◆ gsd_cube()

void gsd_cube	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws a cube symbol at the specified center location.

This function renders a cube symbol at the given center coordinates with the specified color and size.

Added by Hamish Bowman Nov 2005

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 422 of file gsd_objs.c.

References CubeNormals, CubeVertices, gsd_bgnpolygon(), gsd_endpolygon(), gsd_getshademodel(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_shademodel(), gsd_translate(), X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_def_clipplane()

void gsd_def_clipplane	(	int	num,
		double *	params
	)

Define clip plane.

Parameters

num
params

Definition at line 1014 of file gsd_prim.c.

Referenced by gsd_def_cplane().

◆ gsd_def_cplane()

void gsd_def_cplane	(	int	num,
		float *	pt,
		float *	norm
	)

Define cplace.

Parameters

num
pt
norm

Definition at line 55 of file gsd_cplane.c.

References GS_dv3norm(), GS_get_scale(), GS_get_zrange(), and gsd_def_clipplane().

Referenced by gsd_cplane_on(), gsd_cplane_setrot(), gsd_cplane_settrans(), and gsd_update_cplanes().

◆ gsd_deflight()

void gsd_deflight	(	int	num,
		struct lightdefs *	vals
	)

Define light.

Parameters

num	light id (starts with 1)
vals	position(x,y,z,w), color, ambientm, emission

Definition at line 836 of file gsd_prim.c.

References lightdefs::ambient, lightdefs::color, MAX_LIGHTS, lightdefs::position, W, X, Y, and Z.

Referenced by GS_new_light(), GS_setlight_ambient(), GS_setlight_color(), and GS_setlight_position().

◆ gsd_deletelist()

void gsd_deletelist	(	GLuint	listno,
		int	range
	)

Delete list.

Parameters

listno
range	[unused]

Definition at line 1153 of file gsd_prim.c.

References MAX_OBJS.

Referenced by GS_delete_list().

◆ gsd_diamond()

void gsd_diamond	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws a diamond symbol at the specified center location.

This function renders a diamond symbol at the given center coordinates with the specified color and size.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 316 of file gsd_objs.c.

References gsd_bgnpolygon(), gsd_bgntmesh(), gsd_endpolygon(), gsd_endtmesh(), gsd_getshademodel(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_shademodel(), gsd_swaptmesh(), gsd_translate(), Octo, OctoN, X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_diamond_lines()

void gsd_diamond_lines ( void )

Draw diamond lines.

Definition at line 577 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), and Octo.

Referenced by gsd_draw_asterisk().

◆ gsd_disc()

void gsd_disc	(	float	x,
		float	y,
		float	z,
		float	rad
	)

ADD.

Parameters

x,y,z
rad

Definition at line 187 of file gsd_prim.c.

References x.

Referenced by gsd_arrow_onsurf().

◆ gsd_display_fringe()

void gsd_display_fringe	(	geosurf *	surf,
		unsigned long	clr,
		float	elev,
		int	where[4]
	)

Display fridge.

Todo:: add elevation for bottom add color option add ruler grid lines

Parameters

surf	surface (geosurf)
clr
elev
where

Definition at line 51 of file gsd_fringe.c.

References CM_COLOR, FRINGE_FORE, FRINGE_WIDTH, gsd_color_func(), gsd_colormode(), gsd_fringe_horiz_line(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_linewidth(), gsd_zwritemask(), Neast, Nnorth, Nsouth, Nwest, VCOLS, and VROWS.

Referenced by GS_draw_fringe().

◆ gsd_do_scale()

void gsd_do_scale ( int doexag )

Set current scale.

Parameters

doexag use z-exaggeration

Definition at line 355 of file gsd_views.c.

References GS_get_scale(), GS_get_zrange(), gsd_scale(), gsd_translate(), max, and min.

Referenced by gpd_2dsite(), gpd_3dsite(), GS_draw_lighting_model1(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), GS_set_Narrow(), gsd_coarse_surf_map(), gsd_draw_cplane(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_get_los(), gsd_getwindow(), gsd_norm_arrows(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_draw_asterisk()

void gsd_draw_asterisk	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws an asterisk symbol at the specified center location.

This function renders an asterisk symbol at the given center coordinates with the specified color and size.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 608 of file gsd_objs.c.

References gsd_color_func(), gsd_diamond_lines(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_translate(), X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_draw_box()

void gsd_draw_box	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws a box symbol at the specified center location.

This function renders a box symbol at the given center coordinates with the specified color and size.

Added by Hamish Bowman Nov 2005

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 502 of file gsd_objs.c.

References CubeVertices, gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_popmatrix(), gsd_pushmatrix(), gsd_scale(), gsd_translate(), gsd_vert_func(), X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_draw_cplane()

void gsd_draw_cplane ( int num )

Draw cplane.

Parameters

num

Definition at line 296 of file gsd_cplane.c.

References GS_default_draw_color(), GS_get_longdim(), GS_global_exag(), gsd_bgnpolygon(), gsd_blend(), gsd_color_func(), gsd_do_scale(), gsd_endpolygon(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_set_clipplane(), gsd_translate(), gsd_vert_func(), gsd_zwritemask(), MAX_CPLANES, X, Y, and Z.

Referenced by GS_draw_cplane().

◆ gsd_draw_cplane_fence()

void gsd_draw_cplane_fence	(	geosurf *	surf1,
		geosurf *	surf2,
		int	cpnum
	)

ADD.

Parameters

surf1	first surface (geosurf)
surf2	second surface (geosurf) [unused]
cpnum

Definition at line 247 of file gsd_cplane.c.

References GS_P2distance(), GS_v3norm(), gsd_set_clipplane(), gsd_wall(), VROW2Y, X, Y, and Z.

Referenced by GS_draw_cplane(), and GS_draw_cplane_fence().

◆ gsd_draw_gyro()

void gsd_draw_gyro	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws a gyro symbol at the specified center location.

This function renders a gyro symbol at the given center coordinates with the specified color and size.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 667 of file gsd_objs.c.

References gsd_bgnline(), gsd_circ(), gsd_color_func(), gsd_endline(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_translate(), gsd_vert_func(), Octo, X, Y, and Z.

Referenced by gpd_obj().

◆ gsd_drawsphere()

void gsd_drawsphere	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draws a sphere at the specified center location.

This function renders a sphere at the given center coordinates with the specified color and size.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the sphere.
siz	Size of the sphere.

Definition at line 565 of file gsd_objs.c.

References gsd_color_func(), and gsd_sphere().

Referenced by GS_draw_lighting_model(), and GS_draw_lighting_model1().

◆ gsd_end_legend_viewport()

void gsd_end_legend_viewport ( void )

ADD.

Definition at line 91 of file gsd_legend.c.

References GS_done_draw(), GS_set_draw(), GSD_BACK, and gsd_popmatrix().

Referenced by gs_put_label(), and gsd_put_legend().

◆ gsd_endline()

void gsd_endline ( void )

End line.

Definition at line 407 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_vert_line(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_put_legend(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_endlist()

void gsd_endlist ( void )

End list.

Definition at line 1140 of file gsd_prim.c.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_endpolygon()

void gsd_endpolygon ( void )

Delimit the vertices of a primitive or a group of like primitives.

Definition at line 387 of file gsd_prim.c.

Referenced by gsd_box(), gsd_cube(), gsd_diamond(), gsd_draw_cplane(), gsd_north_arrow(), gsd_scalebar(), gsd_surf_const(), and gvld_isosurf().

◆ gsd_endqstrip()

void gsd_endqstrip ( void )

ADD.

Definition at line 287 of file gsd_prim.c.

Referenced by gsd_fringe_horiz_poly(), gsd_fringe_vert_poly(), and primitive_cylinder().

◆ gsd_endtfan()

void gsd_endtfan ( void )

ADD.

Definition at line 347 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), primitive_cone(), and primitive_cylinder().

◆ gsd_endtmesh()

void gsd_endtmesh ( void )

ADD.

Definition at line 307 of file gsd_prim.c.

Referenced by gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map_old(), gsd_triangulated_wall(), and gvld_slice().

◆ gsd_endtstrip()

void gsd_endtstrip ( void )

ADD.

Definition at line 327 of file gsd_prim.c.

◆ gsd_finish()

void gsd_finish ( void )

Finish.

Does nothing, only called from src.contrib/GMSL/NVIZ2.2/src/glwrappers.c

Definition at line 1059 of file gsd_prim.c.

◆ gsd_flush()

void gsd_flush ( void )

Mostly for flushing drawing commands across a network.

glFlush doesn't block, so if blocking is desired use glFinish.

Definition at line 84 of file gsd_prim.c.

Referenced by GS_clear(), GS_done_draw(), GS_draw_lighting_model(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_north_arrow(), gsd_scalebar(), and gsd_scalebar_v2().

◆ gsd_fringe_horiz_line()

void gsd_fringe_horiz_line	(	float	bot,
		geosurf *	surf,
		int	row,
		int	side
	)

Draw fringe outline in x direction.

Parameters

bot	coordinate of fringe bottom
surf	surface (geosurf)
row	row along which is fringe drawn
side

Definition at line 227 of file gsd_fringe.c.

References ATT_TOPO, GET_MAPATT, GS_done_draw(), gs_get_att_typbuff(), GS_set_draw(), gsd_bgnline(), gsd_do_scale(), gsd_endline(), gsd_flush(), GSD_FRONT, gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), VCOLS, X, Y, and Z.

Referenced by gsd_display_fringe().

◆ gsd_fringe_horiz_poly()

void gsd_fringe_horiz_poly	(	float	bot,
		geosurf *	surf,
		int	row,
		int	side
	)

Draw fringe polygon in x direction.

Parameters

bot	coordinate of fringe bottom
surf	surface (geosurf)
row	row along which is fringe drawn
side

Definition at line 141 of file gsd_fringe.c.

References ATT_TOPO, GET_MAPATT, GS_done_draw(), gs_get_att_typbuff(), GS_set_draw(), gsd_bgnqstrip(), gsd_do_scale(), gsd_endqstrip(), gsd_flush(), GSD_FRONT, gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), VCOLS, X, Y, and Z.

Referenced by gsd_display_fringe().

◆ gsd_fringe_vert_line()

void gsd_fringe_vert_line	(	float	bot,
		geosurf *	surf,
		int	col,
		int	side
	)

Draw fringe outline in y direction.

Parameters

bot	coordinate of fringe bottom
surf	surface (geosurf)
col	column along which is fringe drawn
side

Definition at line 407 of file gsd_fringe.c.

References ATT_TOPO, GET_MAPATT, GS_done_draw(), gs_get_att_typbuff(), GS_set_draw(), gsd_bgnline(), gsd_do_scale(), gsd_endline(), gsd_flush(), GSD_FRONT, gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), VROWS, X, Y, and Z.

Referenced by gsd_display_fringe().

◆ gsd_fringe_vert_poly()

void gsd_fringe_vert_poly	(	float	bot,
		geosurf *	surf,
		int	col,
		int	side
	)

Draw fringe outline in y direction.

Parameters

bot	coordinate of fringe bottom
surf	surface (geosurf)
col	column along which is fringe drawn
side

Definition at line 322 of file gsd_fringe.c.

References ATT_TOPO, GET_MAPATT, GS_done_draw(), gs_get_att_typbuff(), GS_set_draw(), gsd_bgnqstrip(), gsd_do_scale(), gsd_endqstrip(), gsd_flush(), GSD_FRONT, gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), VROWS, X, Y, and Z.

Referenced by gsd_display_fringe().

◆ gsd_frontbuffer()

void gsd_frontbuffer ( void )

Draw to the front buffer.

Definition at line 458 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_get_cplanes()

int gsd_get_cplanes ( Point4 * planes )

Get cplaces.

Planes MUST be big enough to hold MAX_CPLANES Point4s

Parameters

planes surface coordinates, normal pointing away from visible side

Returns: ADD

Definition at line 162 of file gsd_cplane.c.

References DOT3, MAX_CPLANES, W, X, Y, and Z.

Referenced by gs_setlos_enterdata().

◆ gsd_get_cplanes_state()

void gsd_get_cplanes_state ( int * onstate )

Get cplane state.

onstate MUST be big enough to hold MAX_CPLANES ints

Parameters

onstate

Definition at line 142 of file gsd_cplane.c.

References MAX_CPLANES.

Referenced by GS_alldraw_cplane_fences(), and GS_draw_lighting_model().

◆ gsd_get_los()

int gsd_get_los	(	float(*)	vect[3],
		short	sx,
		short	sy
	)

ADD.

Parameters

vect
sx,sy	screen coordinates

Returns: 1

Definition at line 40 of file gsd_views.c.

References FROM, GS_ready_draw(), GS_set_draw(), GSD_BACK, gsd_color_func(), gsd_do_scale(), GSD_FRONT, gsd_linewidth(), TO, X, Y, and Z.

Referenced by GS_get_selected_point_on_surface(), GS_look_here(), and Nviz_set_cplane_here().

◆ gsd_get_txtheight()

int gsd_get_txtheight ( int size )

Get text height.

Parameters

size size

Returns: text height

Definition at line 53 of file gsd_fonts.c.

Referenced by gsd_north_arrow(), gsd_put_legend(), and gsd_scalebar().

◆ gsd_get_txtwidth()

int gsd_get_txtwidth	(	const char *	s,
		int	size
	)

Get text width.

Parameters

s	text string
size	size

Returns: text width

Definition at line 36 of file gsd_fonts.c.

Referenced by gs_put_label(), gsd_north_arrow(), gsd_put_legend(), and gsd_scalebar().

◆ gsd_get_zup()

void gsd_get_zup	(	geoview *	gv,
		double *	up
	)

Get z-up vector (z-direction)

Parameters

gv	view (geoview)
up	up vector

Definition at line 240 of file gsd_views.c.

References FROM, GS_v3dir(), TO, X, Y, and Z.

Referenced by gsd_set_view().

◆ gsd_getfc()

int gsd_getfc ( void )

ADD.

Returns

Definition at line 1217 of file gsd_surf.c.

Referenced by GS_get_fencecolor(), and GS_transp_is_set().

◆ gsd_getimage()

int gsd_getimage	(	unsigned char **	pixbuf,
		unsigned int *	xsize,
		unsigned int *	ysize
	)

Get image of current GL screen.

Parameters

	pixbuf	data buffer
[out]	xsize,ysize	picture dimension

Returns: 0 on failure; 1 on success

Definition at line 902 of file gsd_prim.c.

References b, G_malloc, l, r, and t.

Referenced by GS_write_ppm(), and GS_write_tif().

◆ gsd_getshademodel()

int gsd_getshademodel ( void )

Get shaded model.

Returns: shade

Definition at line 438 of file gsd_prim.c.

Referenced by gsd_3darrow(), gsd_box(), gsd_cube(), and gsd_diamond().

◆ gsd_getwindow()

void gsd_getwindow	(	int *	window,
		int *	viewport,
		double *	modelMatrix,
		double *	projMatrix
	)

Get viewport.

Parameters

[out]	window
	viewport
	modelMatrix	model matrix
	projMatrix	projection matrix

Definition at line 554 of file gsd_prim.c.

References border, gsd_do_scale(), gsd_popmatrix(), and gsd_pushmatrix().

Referenced by gpd_2dsite(), gpd_3dsite(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), and gvld_slices().

◆ gsd_init_lightmodel()

void gsd_init_lightmodel ( void )

Initialize model light.

Definition at line 719 of file gsd_prim.c.

Referenced by GS_new_light().

◆ gsd_line_onsurf()

void gsd_line_onsurf	(	geosurf *	gs,
		float *	v1,
		float *	v2
	)

Line on surface, fix z-values.

Todo:: remove fudge, instead fudge the Z buffer

Parameters

gs	surface (geosurf)
v1	first point (X,Y)
v2	second point (X,Y)

Definition at line 171 of file gsd_objs.c.

References FUDGE, gsd_bgnline(), gsd_endline(), gsd_vert_func(), gsdrape_get_segments(), and Z.

Referenced by GS_draw_line_onsurf(), gsd_arrow_onsurf(), and gsd_x().

◆ gsd_linewidth()

void gsd_linewidth ( short n )

Set width of rasterized lines.

Parameters

n	line width

Definition at line 267 of file gsd_prim.c.

Referenced by gk_draw_path(), gpd_2dsite(), gpd_3dsite(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_arrow_onsurf(), gsd_bgn_legend_viewport(), gsd_display_fringe(), gsd_get_los(), gsd_scalebar_v2(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_litvert_func()

void gsd_litvert_func	(	float *	norm,
		unsigned long	col,
		float *	pt
	)

Set the current normal vector & specify vertex.

Parameters

norm	normal vector
col	color value
pt	point (model coordinates)

Definition at line 657 of file gsd_prim.c.

References gsd_color_func().

Referenced by gsd_box(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gvld_isosurf(), and gvld_slice().

◆ gsd_litvert_func2()

void gsd_litvert_func2	(	float *	norm,
		unsigned long	col,
		float *	pt
	)

ADD.

Parameters

norm
col	[unused]
pt

Definition at line 673 of file gsd_prim.c.

Referenced by primitive_cone(), and primitive_cylinder().

◆ gsd_make_nice_number()

int gsd_make_nice_number ( float * num )

ADD.

Parameters

num

Returns: 0 on error; 1 on success

Definition at line 153 of file gsd_legend.c.

Referenced by gsd_get_nice_range().

◆ gsd_makelist()

int gsd_makelist ( void )

ADD.

First time called, gets a bunch of objects, then hands them back when needed

Returns: -1 on failure; number of objects

Definition at line 1094 of file gsd_prim.c.

References MAX_OBJS.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_model2real()

void gsd_model2real ( Point3 point )

Convert model to real coordinates.

Parameters

[in,out] point 3d point (x,y,z)

Definition at line 393 of file gsd_views.c.

References GS_get_region(), GS_get_scale(), GS_get_zrange(), max, min, X, Y, and Z.

Referenced by GS_get_from_real(), and Gs_save_3dview().

◆ gsd_model2surf()

void gsd_model2surf	(	geosurf *	gs,
		Point3	point
	)

Convert model to surface coordinates.

Parameters

gs	surface (geosurf)
point	3d point (Point3)

Definition at line 414 of file gsd_views.c.

References GS_get_scale(), GS_get_zrange(), max, min, X, Y, and Z.

◆ gsd_nline_onsurf()

int gsd_nline_onsurf	(	geosurf *	gs,
		float *	v1,
		float *	v2,
		float *	pt,
		int	n
	)

Multiline on surface, fix z-values.

Todo:: remove fudge, instead fudge the Z buffer

Like above, except only draws first n points of line, or np, whichever is less. Returns number of points used. Fills pt with last pt drawn.

Parameters

	gs	surface (geosurf)
	v1	Pointer to a float array representing the first point as a vector.
	v2	Pointer to a float array representing the second point as a vector.
[out]	pt
[in]	n	number of segments

Returns: int

Definition at line 216 of file gsd_objs.c.

References FUDGE, gsd_bgnline(), gsd_endline(), gsd_vert_func(), gsdrape_get_segments(), X, Y, and Z.

Referenced by GS_draw_nline_onsurf().

◆ gsd_norm_arrows()

int gsd_norm_arrows ( geosurf * surf )

ADD.

Need to do Zexag scale of normal for arrow direction, drawing routine unexags z for arrow

Parameters

surf	surface (geosurf)

Returns

Definition at line 1805 of file gsd_surf.c.

References ATT_COLOR, ATT_TOPO, BM_get(), CM_COLOR, CM_DIFFUSE, CONST_ATT, DEBUG_ARROW, FNORM, G_debug(), GET_MAPATT, GS_check_cancel(), gs_get_att_typbuff(), GS_get_scale(), GS_global_exag(), gs_mapcolor(), gs_update_curmask(), gsd_3darrow(), gsd_arrow(), gsd_colormode(), gsd_do_scale(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), MAP_ATT, VCOLS, VROWS, X, Y, and Z.

Referenced by gsd_surf().

◆ gsd_north_arrow()

int gsd_north_arrow	(	float *	pos2,
		float	len,
		GLuint	fontbase,
		unsigned long	arw_clr,
		unsigned long	text_clr
	)

Draw North Arrow.

Takes OpenGL coords and size

Parameters

pos2	Pointer to a float array representing the position as a 3D vector (X,Y,Z).
len
fontbase
arw_clr	north arrow color
text_clr	text color

Returns: 1

Todo:

Store arrow somewhere to enable it's removal/change.

Add option to specify north text and font.

Definition at line 851 of file gsd_objs.c.

References GS_done_draw(), GS_set_draw(), gsd_bgnpolygon(), gsd_color_func(), gsd_do_scale(), gsd_endpolygon(), gsd_flush(), GSD_FRONT, gsd_get_txtheight(), gsd_get_txtwidth(), gsd_popmatrix(), gsd_pushmatrix(), Ntop, X, Y, and Z.

Referenced by Nviz_draw_all(), and Nviz_draw_arrow().

◆ gsd_ortho_wall()

int gsd_ortho_wall	(	int	np,
		int	ns,
		geosurf **	gsurfs,
		Point3 **	points,
		float *	norm
	)

ADD.

Parameters

np
ns
gsurfs
points
norm

Returns

Definition at line 1323 of file gsd_surf.c.

References ATT_COLOR, CM_COLOR, CM_DIFFUSE, CONST_ATT, FC_ABOVE, FC_BELOW, FC_GREY, G_debug(), GS_check_cancel(), gs_get_att_typbuff(), GS_set_draw(), gsd_bgntmesh(), gsd_blend(), GSD_BOTH, gsd_colormode(), gsd_do_scale(), gsd_endtmesh(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_zwritemask(), MAP_ATT, MAX_SURFS, segs_intersect(), SET_SCOLOR, X, Y, and Z.

Referenced by gsd_wall().

◆ gsd_plus()

void gsd_plus	(	float *	center,
		int	colr,
		float	siz
	)

Draws a plus sign symbol at the specified center location.

This function renders a plus sign ('+') symbol at the given center coordinates with the specified color and size.

Parameters

center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 134 of file gsd_objs.c.

References gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_vert_func(), X, Y, and Z.

◆ gsd_popmatrix()

void gsd_popmatrix ( void )

Pop the current matrix stack.

Definition at line 501 of file gsd_prim.c.

Referenced by gpd_2dsite(), gpd_3dsite(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_3darrow(), gsd_arrow(), gsd_bgn_legend_viewport(), gsd_box(), gsd_calllists(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_end_legend_viewport(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_getwindow(), gsd_norm_arrows(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_pushmatrix()

void gsd_pushmatrix ( void )

Push the current matrix stack.

Definition at line 511 of file gsd_prim.c.

Referenced by gpd_2dsite(), gpd_3dsite(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), GS_set_Narrow(), gsd_3darrow(), gsd_arrow(), gsd_bgn_legend_viewport(), gsd_box(), gsd_calllists(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_getwindow(), gsd_norm_arrows(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_put_legend()

GLuint gsd_put_legend	(	const char *	name,
		GLuint	fontbase,
		int	size,
		int *	flags,
		float *	rangef,
		int *	pt
	)

Put legend.

Parameters

name
fontbase	font-base
size
flags
rangef
pt

Returns

???

Definition at line 201 of file gsd_legend.c.

References _, do_label_display(), G_find_raster2(), G_free(), G_malloc, G_warning(), get_txtxoffset(), gsd_bgn_legend_viewport(), gsd_bgnline(), gsd_bgnlist(), gsd_color_func(), gsd_end_legend_viewport(), gsd_endline(), gsd_endlist(), gsd_get_nice_range(), gsd_get_txtheight(), gsd_get_txtwidth(), gsd_makelist(), max, MAX_LEGEND, min, name, NULL, Rast_free_cats(), Rast_free_colors(), Rast_get_c_cat(), Rast_get_c_color(), Rast_get_d_cat(), Rast_get_d_color(), Rast_get_fp_range_min_max(), Rast_get_range_min_max(), Rast_map_is_fp(), Rast_read_cats(), Rast_read_colors(), Rast_read_fp_range(), Rast_read_range(), RGB_TO_INT, st, X, Y, and Z.

Referenced by GS_draw_legend().

◆ gsd_real2model()

void gsd_real2model ( Point3 point )

Convert real to model coordinates.

Parameters

[in,out] point 3d point (Point3)

Definition at line 373 of file gsd_views.c.

References GS_get_region(), GS_get_scale(), GS_get_zrange(), max, min, X, Y, and Z.

Referenced by GS_moveto_real().

◆ gsd_real2surf()

void gsd_real2surf	(	geosurf *	gs,
		Point3	point
	)

Convert real to surface coordinates.

Parameters

	gs	surface (geosurf)
[in,out]	point	3d point (Point3)

Definition at line 481 of file gsd_views.c.

References X, and Y.

Referenced by GS_get_cat_at_xy(), GS_get_distance_alongsurf(), GS_get_norm_at_xy(), and GS_get_val_at_xy().

◆ gsd_remove_all()

void gsd_remove_all ( void )

Remove all labels from display list.

Definition at line 107 of file gsd_label.c.

References label_base, label_id, and MAX_LIST.

◆ gsd_remove_curr()

void gsd_remove_curr ( void )

Remove current label.

Definition at line 94 of file gsd_label.c.

References label_id.

◆ gsd_rot()

void gsd_rot	(	float	angle,
		char	axis
	)

ADD.

Parameters

angle
axis

Definition at line 605 of file gsd_prim.c.

References _, G_warning(), and x.

Referenced by gsd_3darrow(), gsd_arrow(), gsd_draw_asterisk(), gsd_draw_cplane(), and gsd_draw_gyro().

◆ gsd_scale()

void gsd_scale	(	float	xs,
		float	ys,
		float	zs
	)

Multiply the current matrix by a general scaling matrix.

Parameters

xs	x scale value
ys	y scale value
zs	z scale value

Definition at line 525 of file gsd_prim.c.

Referenced by gpd_obj(), GS_draw_lighting_model1(), gsd_3darrow(), gsd_arrow(), gsd_box(), gsd_cube(), gsd_diamond(), gsd_do_scale(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), and gsd_draw_gyro().

◆ gsd_scalebar()

int gsd_scalebar	(	float *	pos2,
		float	len,
		GLuint	fontbase,
		unsigned long	bar_clr,
		unsigned long	text_clr
	)

Draw Scalebar takes OpenGL coords and size.

Adapted from gsd_north_arrow Hamish Bowman Dec 2006

Parameters

pos2	Pointer to a float array representing the scalebar position as a 3D vector (X,Y,Z).
len
fontbase	font-base
bar_clr	barscale color. Integer representing the color to use for the barscale.
text_clr	test color. Integer representing the color to use for the text.

Returns: 1

Definition at line 1193 of file gsd_objs.c.

References G_database_unit_name(), GS_done_draw(), GS_set_draw(), gsd_bgnpolygon(), gsd_color_func(), gsd_do_scale(), gsd_endpolygon(), gsd_flush(), GSD_FRONT, gsd_get_txtheight(), gsd_get_txtwidth(), gsd_popmatrix(), gsd_pushmatrix(), Ntop, TRUE, X, Y, and Z.

◆ gsd_scalebar_v2()

int gsd_scalebar_v2	(	float *	pos,
		float	len,
		GLuint	fontbase,
		unsigned long	bar_clr,
		unsigned long	text_clr
	)

Draw Scalebar (as lines)

Adapted from gsd_scalebar A.Kratochvilova 2011

Parameters

pos	Pointer to a float array representing the scalebar position as a 3D vector (X,Y,Z).
len
fontbase	font-base (unused)
bar_clr	barscale color. Integer representing the color to use for the barscale.
text_clr	Text color (unused). Integer representing the color to use for the text.

Returns: 1

Definition at line 1282 of file gsd_objs.c.

References GS_done_draw(), GS_set_draw(), gsd_bgnline(), gsd_color_func(), gsd_do_scale(), gsd_endline(), gsd_flush(), GSD_FRONT, gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_vert_func(), Ntop, X, Y, and Z.

Referenced by Nviz_draw_all(), and Nviz_draw_scalebar().

◆ gsd_set_clipplane()

void gsd_set_clipplane	(	int	num,
		int	able
	)

Set clip plane.

Parameters

num
able

Definition at line 1041 of file gsd_prim.c.

Referenced by gsd_cplane_off(), gsd_cplane_on(), gsd_draw_cplane(), and gsd_draw_cplane_fence().

◆ gsd_set_font()

GLuint gsd_set_font ( const char * )

◆ gsd_set_material()

void gsd_set_material	(	int	set_shin,
		int	set_emis,
		float	sh,
		float	em,
		int	emcolor
	)

Set material.

Parameters

set_shin,set_emis	flags
sh,em	should be 0. - 1.
emcolor	packed colors to use for emission

Definition at line 803 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slices(), and gvld_wire_slices().

◆ gsd_set_view()

void gsd_set_view	(	geoview *	gv,
		geodisplay *	gd
	)

Set view.

Establishes viewing & projection matrices

Parameters

gv	view (geoview)
gd	display (geodisplay)

Definition at line 146 of file gsd_views.c.

References FROM, GS_get_aspect(), gs_get_datacenter(), gsd_check_focus(), gsd_get_zup(), gsd_surf2model(), gsd_update_cplanes(), TO, X, Y, and Z.

Referenced by GS_ready_draw(), GS_set_focus(), GS_set_focus_real(), and GS_set_viewdir().

◆ gsd_setfc()

void gsd_setfc ( int mode )

ADD.

Parameters

mode

Definition at line 1205 of file gsd_surf.c.

Referenced by GS_set_fencecolor().

◆ gsd_shademodel()

void gsd_shademodel ( int shade )

Set shaded model.

Parameters

shade non-zero for GL_SMOOTH otherwise GL_FLAT

Definition at line 419 of file gsd_prim.c.

Referenced by GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_surf(), gsd_3darrow(), gsd_box(), gsd_cube(), gsd_diamond(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_sphere()

void gsd_sphere	(	float *	center,
		float	siz
	)

ADD.

Parameters

center	center-point
siz	size value

Definition at line 207 of file gsd_prim.c.

Referenced by gpd_obj(), and gsd_drawsphere().

◆ gsd_surf()

int gsd_surf ( geosurf * surf )

ADD.

Parameters

surf	surface (geosurf)

Returns: -1 on error

Definition at line 80 of file gsd_surf.c.

References ATT_TOPO, CONST_ATT, FUNC_ATT, G_debug(), gs_calc_normals(), gs_get_att_src(), gsd_norm_arrows(), gsd_surf_const(), gsd_surf_func(), gsd_surf_map(), MAP_ATT, and NOTSET_ATT.

Referenced by GS_draw_surf().

◆ gsd_surf2model()

void gsd_surf2model ( Point3 point )

Convert surface to model coordinates.

Parameters

point 3d point (Point3)

Definition at line 442 of file gsd_views.c.

References GS_get_scale(), GS_get_zrange(), max, min, X, Y, and Z.

Referenced by gsd_set_view().

◆ gsd_surf2real()

void gsd_surf2real	(	geosurf *	gs,
		Point3	point
	)

Convert surface to real coordinates.

Parameters

	gs	surface (geosurf)
[in,out]	point	3d point (Point3)

Definition at line 465 of file gsd_views.c.

References X, and Y.

Referenced by GS_draw_nline_onsurf(), and GS_get_selected_point_on_surface().

◆ gsd_surf_const()

int gsd_surf_const	(	geosurf *	surf,
		float	k
	)

Using tmesh - not confident with qstrips portability.

Todo:: FIX: do_diff won't work right - needs normals - maybe calculate on the fly

Parameters

surf	surface (geosurf)
k

Returns

Definition at line 729 of file gsd_surf.c.

References ATT_COLOR, ATT_TRANSP, BM_get(), CM_DIFFUSE, CONST_ATT, G_debug(), GS_check_cancel(), gs_get_att_typbuff(), GS_get_scale(), gs_mapcolor(), gs_update_curmask(), gsd_bgnpolygon(), gsd_bgntmesh(), gsd_blend(), gsd_checkpoint(), gsd_colormode(), gsd_do_scale(), gsd_endpolygon(), gsd_endtmesh(), gsd_getwindow(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_zwritemask(), gsdiff_do_SD(), gsdiff_get_SDref(), MAP_ATT, NULL, VCOLS, VROWS, X, Y, and Z.

Referenced by gsd_coarse_surf_map(), gsd_surf(), gsd_surf_map(), and gsd_surf_map_old().

◆ gsd_surf_func()

int gsd_surf_func	(	geosurf *	gs,
		int(*)(void)	user_func
	)

Define user function.

Not yet supported

Parameters

gs	surface (geosurf) [unused]
user_func	user function [unused]

Returns: 1

Definition at line 1090 of file gsd_surf.c.

Referenced by gsd_surf().

◆ gsd_surf_map()

int gsd_surf_map ( geosurf * surf )

Draw surface using triangle fan instead of strip.

Optimized by getting rid of BM_get mask check - GET_MAPPATT does same and returns zero if masked

Only do in window check on Fan center(v0) to further optimize – this runs the risk of trimming points in view !!

Parameters

surf	surface (geosurf)

Returns

Definition at line 2061 of file gsd_surf.c.

References ATT_COLOR, ATT_EMIT, ATT_SHINE, ATT_TOPO, ATT_TRANSP, CM_DIFFUSE, CONST_ATT, FNORM, GET_MAPATT, GS_check_cancel(), gs_get_att_typbuff(), GS_get_scale(), GS_global_exag(), gs_mapcolor(), gs_update_curmask(), gsd_bgntfan(), gsd_blend(), gsd_checkpoint(), gsd_colormode(), gsd_do_scale(), gsd_endtfan(), gsd_getwindow(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_surf_const(), gsd_translate(), gsd_zwritemask(), MAP_ATT, SCALE_ATT, VCOLS, VROWS, X, Y, and Z.

Referenced by gsd_surf().

◆ gsd_swapbuffers()

void gsd_swapbuffers ( void )

Swap buffers.

Definition at line 482 of file gsd_prim.c.

Referenced by GS_done_draw().

◆ gsd_swaptmesh()

void gsd_swaptmesh ( void )

ADD.

Definition at line 357 of file gsd_prim.c.

Referenced by gsd_diamond().

◆ gsd_switchlight()

void gsd_switchlight	(	int	num,
		int	on
	)

Switch light on/off.

Parameters

num
on	1 for 'on', 0 turns them off

Definition at line 877 of file gsd_prim.c.

Referenced by GS_lights_off(), GS_lights_on(), GS_new_light(), and GS_switchlight().

◆ gsd_translate()

void gsd_translate	(	float	dx,
		float	dy,
		float	dz
	)

Multiply the current matrix by a translation matrix.

Parameters

dx	x translation value
dy	y translation value
dz	z translation value

Definition at line 539 of file gsd_prim.c.

Referenced by gpd_2dsite(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_3darrow(), gsd_arrow(), gsd_box(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_do_scale(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_norm_arrows(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_triangulated_wall()

int gsd_triangulated_wall	(	int	npts1,
		int	npts2,
		geosurf *	surf1,
		geosurf *	surf2,
		Point3 *	points1,
		Point3 *	points2,
		float *	norm
	)

ADD.

Parameters

npts1
npts2
surf1	first surface (geosurf)
surf2	second surface (geosurf)
points1
points2
norm

Returns: 1

Definition at line 1109 of file gsd_surf.c.

References ATT_COLOR, CM_DIFFUSE, CONST_ATT, gs_get_att_typbuff(), gs_mapcolor(), gsd_bgntmesh(), gsd_colormode(), gsd_do_scale(), gsd_endtmesh(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), MAP_ATT, X, XY2OFF, Y, and Z.

◆ gsd_update_cplanes()

void gsd_update_cplanes ( void )

Update cplaces.

Called when viewing matrix changes

Definition at line 86 of file gsd_cplane.c.

References gsd_def_cplane(), and MAX_CPLANES.

Referenced by gsd_set_view().

◆ gsd_update_cpnorm()

void gsd_update_cpnorm ( int num )

ADD.

Parameters

num

Definition at line 188 of file gsd_cplane.c.

References P_popmatrix(), P_pushmatrix(), P_rot(), P_transform(), W, X, Y, and Z.

Referenced by gsd_cplane_setrot().

◆ gsd_vert_func()

void gsd_vert_func ( float * pt )

ADD.

Parameters

pt

Definition at line 686 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_viewport()

void gsd_viewport	(	int	l,
		int	r,
		int	b,
		int	t
	)

Set the viewport.

l, b specify the lower left corner of the viewport rectangle, in pixels.

r, t specify the width and height of the viewport.

Parameters

l	left
r	right
b	bottom
t	top

Definition at line 1077 of file gsd_prim.c.

References b, l, r, and t.

Referenced by GS_set_viewport().

◆ gsd_wall()

int gsd_wall	(	float *	bgn,
		float *	end,
		float *	norm
	)

ADD.

bgn,end should already be in world modeling coords, but have to be reverse-translated to apply to each surface

Parameters

bgn,end	2d line for cutting plane
norm	indicates which way wall faces

Returns

Definition at line 1710 of file gsd_surf.c.

References _, err(), FC_OFF, G_calloc, G_free(), G_warning(), gs_getall_surfaces(), GS_v3eq(), gsd_ortho_wall(), gsdrape_get_allsegments(), MAX_SURFS, X, Y, and Z.

Referenced by gsd_draw_cplane_fence().

◆ gsd_wire_arrows()

int gsd_wire_arrows ( geosurf * surf )

ADD.

Need to do Zexag scale of normal for arrow direction, drawing routine unexags z for arrow

Parameters

surf	surface (geosurf)

Returns

Definition at line 457 of file gsd_wire.c.

References ATT_COLOR, ATT_TOPO, BM_get(), CM_COLOR, CM_DIFFUSE, CONST_ATT, FNORM, G_debug(), GET_MAPATT, gs_get_att_typbuff(), GS_get_scale(), GS_global_exag(), gs_mapcolor(), gs_update_curmask(), gsd_arrow(), gsd_colormode(), gsd_do_scale(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), MAP_ATT, X, Y, and Z.

◆ gsd_wire_surf()

int gsd_wire_surf ( geosurf * surf )

Draw surface wire.

Parameters

surf	surface (geosurf)

Returns

Definition at line 46 of file gsd_wire.c.

References ATT_TOPO, CONST_ATT, DM_GRID_WIRE, FUNC_ATT, G_debug(), gs_get_att_src(), gsd_coarse_surf_map(), gsd_wire_surf_const(), gsd_wire_surf_func(), gsd_wire_surf_map(), MAP_ATT, and NOTSET_ATT.

Referenced by GS_alldraw_wire(), GS_draw_surf(), and GS_draw_wire().

◆ gsd_wire_surf_const()

int gsd_wire_surf_const	(	geosurf *	surf,
		float	k
	)

ADD.

Parameters

surf	surface (geosurf)
k

Returns

Definition at line 276 of file gsd_wire.c.

References ATT_COLOR, BM_get(), CM_COLOR, CM_DIFFUSE, CONST_ATT, G_debug(), gs_get_att_typbuff(), gs_mapcolor(), gs_update_curmask(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), gsdiff_do_SD(), gsdiff_get_SDref(), MAP_ATT, NULL, WC_COLOR_ATT, X, Y, and Z.

Referenced by gsd_wire_surf().

◆ gsd_wire_surf_func()

int gsd_wire_surf_func	(	geosurf *	gs,
		int(*)(void)	user_func
	)

ADD.

Not yet implemented.

Parameters

gs	surface (geosurf) [unused]
user_func	user defined function [unused]

Returns: 1

Definition at line 442 of file gsd_wire.c.

Referenced by gsd_wire_surf().

◆ gsd_wire_surf_map()

int gsd_wire_surf_map ( geosurf * surf )

ADD.

Parameters

surf	surface (geosurf)

Returns

Definition at line 99 of file gsd_wire.c.

References ATT_COLOR, ATT_TOPO, BM_get(), CM_COLOR, CM_DIFFUSE, CONST_ATT, G_debug(), GET_MAPATT, gs_get_att_typbuff(), gs_mapcolor(), gs_update_curmask(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), MAP_ATT, WC_COLOR_ATT, X, Y, and Z.

Referenced by gsd_wire_surf().

◆ gsd_writeView()

int gsd_writeView	(	unsigned char **	pixbuf,
		unsigned int	xsize,
		unsigned int	ysize
	)

Write view.

Parameters

pixbuf	data buffer
xsize,ysize	picture dimension

Returns: 0 on failure; 1 on success

Definition at line 969 of file gsd_prim.c.

References G_malloc.

Referenced by GS_write_zoom().

◆ gsd_x()

void gsd_x	(	geosurf *	gs,
		float *	center,
		int	colr,
		float	siz
	)

Draws a X symbol at the specified center location.

This function renders a x ('X') symbol at the given center coordinates with the specified color and size.

Note gs: NULL if flat

Parameters

gs	surface (geosurf)
center	Pointer to a float array representing the (x, y, z) coordinates of the center point.
colr	Integer representing the color to use for drawing the symbol.
siz	Size of the symbol.

Definition at line 263 of file gsd_objs.c.

References gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_line_onsurf(), gsd_vert_func(), X, Y, and Z.

Referenced by gk_draw_path(), and gpd_obj().

◆ gsd_zup_twist()

int gsd_zup_twist ( geoview * gv )

ADD.

Parameters

gv	view (geoview)

Returns: ?

Definition at line 274 of file gsd_views.c.

References FROM, GS_distance(), GS_v3eq(), TO, X, Y, and Z.

◆ gsd_zwritemask()

void gsd_zwritemask ( unsigned long n )

Write out z-mask.

Enable or disable writing into the depth buffer

Parameters

n	Specifies whether the depth buffer is enabled for writing

Definition at line 241 of file gsd_prim.c.

Referenced by gk_draw_path(), GS_draw_lighting_model(), GS_draw_lighting_model1(), gsd_coarse_surf_map(), gsd_display_fringe(), gsd_draw_cplane(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slice(), and gvld_slices().

◆ gsdiff_do_SD()

float gsdiff_do_SD	(	float	val,
		int	offset
	)

ADD.

Parameters

val
offset

Returns: value

Definition at line 94 of file gsdiff.c.

References GET_MAPATT.

Referenced by gs_get_att_typbuff(), gsd_surf_const(), and gsd_wire_surf_const().

◆ gsdiff_get_SDref()

geosurf * gsdiff_get_SDref ( void )

ADD.

Returns: pointer to geosurf struct

Definition at line 77 of file gsdiff.c.

References NULL.

Referenced by gs_get_att_typbuff(), GS_get_SDsurf(), gsd_surf_const(), and gsd_wire_surf_const().

◆ gsdiff_get_SDscale()

float gsdiff_get_SDscale ( void )

Get scale.

Returns: scale value

Definition at line 54 of file gsdiff.c.

Referenced by GS_get_SDscale().

◆ gsdiff_set_SDref()

void gsdiff_set_SDref ( geosurf * gsref )

ADD.

Parameters

gsref

Definition at line 64 of file gsdiff.c.

References ATT_TOPO, and gs_get_att_typbuff().

Referenced by GS_set_SDsurf(), and GS_unset_SDsurf().

◆ gsdiff_set_SDscale()

void gsdiff_set_SDscale ( float scale )

Set scale.

Parameters

scale value

Definition at line 42 of file gsdiff.c.

Referenced by GS_set_SDscale().

◆ gsdrape_get_allsegments()

Point3 * gsdrape_get_allsegments	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		int *	num
	)

Get all segments.

Parameters

	gs	surface (geosurf)
[in,out]	bgn	begin point
[in,out]	end	end point
[out]	num

Returns: pointer to Point3 struct

Definition at line 400 of file gsdrape.c.

References ATT_TOPO, CONST_ATT, gs_get_att_src(), GS_v3eq(), gsdrape_set_surface(), interp_first_last(), l, NULL, seg_intersect_vregion(), X, and Y.

Referenced by gs_los_intersect(), and gsd_wall().

◆ gsdrape_get_segments()

Point3 * gsdrape_get_segments	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		int *	num
	)

ADD.

Parameters

	gs	surface (geosurf)
[in,out]	bgn	begin point (x,y)
[in,out]	end	end point (x,y)
[out]	num

Returns: pointer to Point3 struct

Definition at line 350 of file gsdrape.c.

References ATT_TOPO, CONST_ATT, gs_get_att_src(), GS_v3eq(), gsdrape_set_surface(), interp_first_last(), l, NULL, seg_intersect_vregion(), X, Y, and Z.

Referenced by gs_distance_onsurf(), gsd_line_onsurf(), gsd_nline_onsurf(), gvd_draw_lineonsurf(), and gvd_vect().

◆ gsdrape_set_surface()

int gsdrape_set_surface ( geosurf * gs )

ADD.

Parameters

gs	surface (geosurf)

Returns: -1 on failure; 1 on success

Definition at line 198 of file gsdrape.c.

References _, ATT_TOPO, G_warning(), gs_get_att_typbuff(), and NULL.

Referenced by gsdrape_get_allsegments(), and gsdrape_get_segments().

◆ gsds_alloc_typbuff()

size_t gsds_alloc_typbuff	(	int	id,
		int *	dims,
		int	ndims,
		int	type
	)

Allocates correct buffer according to type, keeps track of total mem.

Todo:: add ATTY_CONST

Parameters

id	dataset id
dims	array of dimensions
ndims	number of dimensions
type	data type

Returns: amount of allocated memory

Definition at line 480 of file gsds.c.

References ATTY_CHAR, ATTY_FLOAT, ATTY_INT, ATTY_MASK, ATTY_NULL, ATTY_SHORT, typbuff::bm, BM_create(), BM_get_map_size(), typbuff::cb, dataset::changed, dataset::databuff, dataset::dims, typbuff::fb, G_debug(), G_malloc, typbuff::ib, dataset::ndims, dataset::need_reload, typbuff::nm, NULL, dataset::numbytes, and typbuff::sb.

Referenced by gs_malloc_att_buff().

◆ gsds_findh()

int gsds_findh	(	const char *	,
		IFLAG *	,
		IFLAG *	,
		int
	)

Referenced by GS_load_att_map().

◆ gsds_free_data_buff()

int gsds_free_data_buff	(	int	id,
		int	typ
	)

Free allocated buffer.

Parameters

id	dataset id
typ	data type

Returns: 0 not found; 1 found

Definition at line 369 of file gsds.c.

References free_data_buffs().

Referenced by GS_load_att_map().

◆ gsds_free_datah()

int gsds_free_datah ( int id )

Free allocated dataset.

Parameters

id

Returns: 0 not found; 1 found

Definition at line 329 of file gsds.c.

References ATTY_ANY, free_data_buffs(), G_debug(), G_free(), and NULL.

Referenced by gs_free_unshared_buffs(), and gs_set_att_src().

◆ gsds_get_changed()

int gsds_get_changed ( int id )

ADD.

Parameters

id

Returns: -1 on error

Definition at line 613 of file gsds.c.

References dataset::changed.

Referenced by Gs_update_attrange().

◆ gsds_get_name()

char * gsds_get_name ( int id )

Get name.

Parameters

id

Returns: name; NULL on failure

Definition at line 303 of file gsds.c.

References GPATH_MAX, NULL, and strcpy.

Referenced by GS_get_att(), and GS_get_cat_at_xy().

◆ gsds_get_typbuff()

typbuff * gsds_get_typbuff	(	int	,
		IFLAG
	)

Referenced by gs_get_att_typbuff(), and Gs_update_attrange().

◆ gsds_get_type()

int gsds_get_type ( int id )

ADD.

Parameters

id

Returns

Definition at line 651 of file gsds.c.

◆ gsds_newh()

int gsds_newh ( const char * name )

Get handle to gsds.

Parameters

name	raster map name

Returns: -1 on failure; data id

Definition at line 219 of file gsds.c.

References G_store(), MAXDIMS, name, and NULL.

Referenced by GS_load_att_map().

◆ gsds_set_changed()

int gsds_set_changed	(	int	,
		IFLAG
	)

Referenced by GS_load_att_map().

◆ GV_alldraw_fastvect()

void GV_alldraw_fastvect ( void )

Draw all loaded vector sets (fast mode)

Definition at line 548 of file gv2.c.

References GV_draw_fastvect().

◆ GV_alldraw_vect()

void GV_alldraw_vect ( void )

Draw all loaded vector sets.

Definition at line 506 of file gv2.c.

References GV_draw_vect().

Referenced by gk_follow_frames(), GK_show_vect(), Nviz_draw_all_vect(), and Nviz_draw_quick().

◆ gv_decimate_lines()

int gv_decimate_lines ( geovect * gv )

Decimate line.

strategy here: if line has more than average number of points, decimate by eliminating points, otherwise decimate by eliminating shorter lines

Parameters

gv	vector (geovect)

Returns

Definition at line 231 of file gv_quick.c.

References G_debug(), gln_num_points(), gv_line_length(), gv_num_points(), MFAST_LNS, g_line::next, NULL, and TFAST_PTS.

Referenced by gvd_vect().

◆ gv_delete_vect()

void gv_delete_vect ( int id )

Delete vector set (unload)

Parameters

id	vector set id

Definition at line 242 of file gv.c.

References G_debug(), gv_free_vect(), and gv_get_vect().

Referenced by GV_delete_vector().

◆ GV_delete_vector()

int GV_delete_vector ( int id )

Delete vector set from list.

Parameters

id	vector set id

Returns: 1 on success; -1 on error

Definition at line 129 of file gv2.c.

References G_debug(), gv_delete_vect(), and GV_vect_exists().

Referenced by Nviz_new_map_obj().

◆ GV_draw_fastvect()

void GV_draw_fastvect ( int vid )

Draw vector set (fast mode)

Todo:: Seems to be broken, nothing is drawn

Parameters

vid	vector set id

Definition at line 524 of file gv2.c.

References gs_get_surf(), gv_get_vect(), and gvd_vect().

Referenced by GV_alldraw_fastvect().

◆ GV_draw_vect()

void GV_draw_vect ( int vid )

Draw vector set.

Parameters

vid	vector set id

Definition at line 482 of file gv2.c.

References gs_get_surf(), gv_get_vect(), and gvd_vect().

Referenced by GV_alldraw_vect().

◆ gv_free_vect()

int gv_free_vect ( geovect * fv )

Free allocated memory for geovect struct.

Parameters

fv	pointer to geovect struct

Returns: -1 on failure; 1 on success

Definition at line 265 of file gv.c.

References G_debug(), G_free(), gv_free_vectmem(), and NULL.

Referenced by gv_delete_vect().

◆ gv_free_vectmem()

void gv_free_vectmem ( geovect * fv )

Free allocated memory.

Parameters

fv	pointer to geovect struct

Definition at line 313 of file gv.c.

References G_free(), NULL, and sub_Vectmem().

Referenced by gv_free_vect(), and GV_load_vector().

◆ GV_Get_ClientData()

void * GV_Get_ClientData ( int id )

Get client data.

Parameters

id	vector set id

Returns: pointer to client data; NULL on error

Definition at line 590 of file gv2.c.

References gv_get_vect(), and NULL.

◆ gv_get_last_vect()

geovect * gv_get_last_vect ( void )

Get last loaded vector set.

Returns: pointer to geovect struct; NULL on failure (no vector set available)

Definition at line 96 of file gv.c.

References G_debug(), and NULL.

Referenced by gv_get_new_vect().

◆ gv_get_new_vect()

geovect * gv_get_new_vect ( void )

Allocate memory for new vector set.

Returns: pointer to geovect struct; NULL on failure

Definition at line 118 of file gv.c.

References FIRST_VECT_ID, G_debug(), G_malloc, G_zero(), gv_get_last_vect(), and NULL.

Referenced by GV_new_vector().

◆ gv_get_prev_vect()

geovect * gv_get_prev_vect ( int id )

Get previous vector set.

Parameters

id	vector set id

Returns: pointer to geovect struct; NULL on failure

Definition at line 57 of file gv.c.

References G_debug(), g_vect::gvect_id, g_vect::next, and NULL.

◆ GV_get_style()

int GV_get_style	(	int	id,
		int *	mem,
		int *	color,
		int *	width,
		int *	use_z
	)

Get vector style.

Parameters

	id	vector set id
[out]	mem	non-zero for use memory
[out]	color	color value
[out]	width	line width
[out]	use_z	non-zero for 3d mode

Returns: -1 on error (invalid vector set id); 1 on success

Definition at line 257 of file gv2.c.

References gv_get_vect(), and NULL.

◆ GV_get_trans()

int GV_get_trans	(	int	id,
		float *	xtrans,
		float *	ytrans,
		float *	ztrans
	)

Get trans ?

Parameters

	id	vector set id
[out]	xtrans,ytrans,ztrans	x/y/z trans values

Definition at line 366 of file gv2.c.

References gv_get_vect().

◆ gv_get_vect()

geovect * gv_get_vect ( int id )

Get vector set.

Parameters

id	vector set id

Returns: pointer to geovect struct; NULL on failure

Definition at line 34 of file gv.c.

References G_debug(), and NULL.

Referenced by gv_delete_vect(), GV_draw_fastvect(), GV_draw_vect(), GV_Get_ClientData(), GV_get_style(), GV_get_trans(), GV_get_vectname(), GV_load_vector(), GV_select_surf(), GV_Set_ClientData(), GV_set_style(), GV_set_style_thematic(), GV_set_trans(), GV_surf_is_selected(), GV_unselect_surf(), GV_unset_style_thematic(), and GV_vect_exists().

◆ GV_get_vect_list()

int * GV_get_vect_list ( int * numvects )

Get list of vector sets.

Must free when no longer needed!

Parameters

numvects number of vector sets

Returns: pointer to list of point sets; NULL on error

Definition at line 99 of file gv2.c.

References G_malloc, and NULL.

◆ GV_get_vectname()

int GV_get_vectname	(	int	id,
		char **	filename
	)

Get vector map name.

Note: char array is allocated by G_store()

Parameters

id	vector set id
filename	&filename

Returns: -1 on error (invalid vector set id); 1 on success

Definition at line 204 of file gv2.c.

References G_store(), gv_get_vect(), and NULL.

◆ gv_init_vect()

int gv_init_vect ( geovect * gv )

Initialize geovect struct.

Parameters

gv	pointer to geovect struct

Returns: -1 on failure; 0 on success

Definition at line 226 of file gv.c.

References G_debug().

◆ gv_line_length()

float gv_line_length ( geoline * gln )

Get line width.

Parameters

gln	line (geoline)

Returns: line width

Definition at line 173 of file gv_quick.c.

References GS_distance(), and GS_P2distance().

Referenced by gv_decimate_lines().

◆ Gv_load_vect()

geoline * Gv_load_vect	(	const char *	grassname,
		int *	nlines
	)

Load vector map to memory.

The other alternative may be to load to a tmp file

Parameters

	grassname	vector map name
[out]	nlines	number of loaded features

Returns: pointer to geoline struct; NULL on failure

Definition at line 47 of file gv3.c.

References _, Cell_head::east, G_calloc, G_debug(), G_find_vector2(), G_free(), G_fully_qualified_name(), G_get_set_window(), G_malloc, G_message(), G_warning(), GS_v3cross(), GV_FACE, GV_LINES, line_pnts::n_points, g_line::next, Cell_head::north, NULL, OGSF_LINE, OGSF_POLYGON, PORT_DOUBLE_MAX, Cell_head::south, Cell_head::top, Vect_close(), Vect_get_area_points(), Vect_get_num_areas(), Vect_is_3d(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_open_old(), Vect_read_next_line(), Vect_reset_cats(), Vect_set_constraint_region(), Vect_set_open_level(), Cell_head::west, X, line_pnts::x, Y, line_pnts::y, Z, and line_pnts::z.

Referenced by GV_load_vector().

◆ Gv_load_vect_thematic()

int Gv_load_vect_thematic	(	geovect *	gv,
		struct Colors *	colors
	)

Load styles for geolines based on thematic mapping.

Parameters

gv	pointer to geovect structure
colors	pointer to Colors structure or NULL

Returns: number of features defined by thematic mapping; -1 on error

Definition at line 319 of file gv3.c.

References _, BLU_MASK, db_get_value_int(), db_get_value_string(), db_select_value(), db_start_driver_open_database(), field_info::driver, G_fatal_error(), G_find_vector2(), G_fully_qualified_name(), G_malloc, G_message(), G_str_to_color(), G_warning(), G_zero(), GRN_MASK, Rast_get_c_color(), RED_MASK, Vect_cat_get(), Vect_get_field(), Vect_open_old(), and Vect_set_open_level().

Referenced by GV_set_style_thematic().

◆ GV_load_vector()

int GV_load_vector	(	int	id,
		const char *	filename
	)

Load vector set.

Check to see if handle already loaded, if so - free before loading new for now, always load to memory

Todo:: Load file handle & ready for reading instead of using memory

Parameters

id	vector set id
filename	filename

Returns: -1 on error (invalid vector set id); 1 on success

Definition at line 172 of file gv2.c.

References G_store(), gv_free_vectmem(), gv_get_vect(), Gv_load_vect(), and NULL.

Referenced by Nviz_new_map_obj().

◆ GV_new_vector()

int GV_new_vector ( void )

Register new vector set.

Returns: vector set id; -1 on error

Definition at line 61 of file gv2.c.

References G_debug(), gv_get_new_vect(), gv_set_defaults(), and MAX_VECTS.

Referenced by Nviz_new_map_obj().

◆ gv_num_points()

int gv_num_points ( geovect * gv )

Get number of points in vector.

Parameters

gv	vector (geovect)

Returns: number of points

Definition at line 216 of file gv_quick.c.

References gln_num_points().

Referenced by gv_decimate_lines().

◆ GV_num_vects()

int GV_num_vects ( void )

Get number of available vector sets.

Returns: number of vector sets

Definition at line 84 of file gv2.c.

References gv_num_vects().

Referenced by Nviz_new_map_obj().

◆ gv_num_vects()

int gv_num_vects ( void )

Get number of loaded vector sets.

Returns: number of vector sets

Definition at line 77 of file gv.c.

References G_debug().

Referenced by GV_num_vects().

◆ GV_select_surf()

int GV_select_surf	(	int	hv,
		int	hs
	)

Select surface identified by hs to have vector identified by hv draped over it.

Parameters

hv	vector set id
hs	surface id

Returns: 1 on success; -1 on error

Definition at line 393 of file gv2.c.

References GS_surf_exists(), gv_get_vect(), and GV_surf_is_selected().

Referenced by Nviz_new_map_obj().

◆ GV_Set_ClientData()

int GV_Set_ClientData	(	int	id,
		void *	clientd
	)

Set client data.

Parameters

id	vector set id
clientd	pointer to client data

Returns: 1 on success; -1 on error

Definition at line 568 of file gv2.c.

References gv_get_vect().

◆ gv_set_defaults()

int gv_set_defaults ( geovect * gv )

Set attributes of vector set to default values.

Parameters

gv	pointer to geovect struct

Returns: -1 on error; 0 on success

Definition at line 187 of file gv.c.

References G_debug(), MAX_SURFS, and NULL.

Referenced by GV_new_vector().

◆ gv_set_drapesurfs()

void gv_set_drapesurfs	(	geovect *	gv,
		int *	hsurfs,
		int	nsurfs
	)

Set drape surfaces for vector set.

Parameters

gv	pointer to geovect struct
hsurfs	array of surfaces (id)
nsurfs	number of surfaces

Definition at line 364 of file gv.c.

References MAX_SURFS.

◆ GV_set_style()

int GV_set_style	(	int	id,
		int	mem,
		int	color,
		int	width,
		int	use_z
	)

Set vector style.

Parameters

id	vector set id
mem	non-zero for use memory
color	color value
width	line width
use_z	non-zero for 3d mode

Returns: -1 on error (invalid vector set id); 1 on success

Definition at line 229 of file gv2.c.

References gv_get_vect(), and NULL.

Referenced by Nviz_new_map_obj().

◆ GV_set_style_thematic()

int GV_set_style_thematic	(	int	id,
		int	layer,
		const char *	color,
		const char *	width,
		struct Colors *	color_rules
	)

Set vector set style for thematic mapping.

Updates also style for each geoline.

Parameters

id	vector set id
layer	layer number for thematic mapping
color	color column name
width	width column name
color_rules	pointer to Colors structure or NULL

Returns: 1 on success; -1 on error (point set not found)

Definition at line 287 of file gv2.c.

References G_malloc, G_store(), G_zero(), gv_get_vect(), Gv_load_vect_thematic(), and NULL.

◆ GV_set_trans()

void GV_set_trans	(	int	id,
		float	xtrans,
		float	ytrans,
		float	ztrans
	)

Set trans ?

Parameters

id	vector set id
xtrans,ytrans,ztrans	x/y/z trans values

Definition at line 343 of file gv2.c.

References G_debug(), and gv_get_vect().

◆ GV_surf_is_selected()

int GV_surf_is_selected	(	int	hv,
		int	hs
	)

Check if surface is selected.

Parameters

hv	vector set id
hs	surface id

Returns: 1 selected; 0 not selected

Definition at line 459 of file gv2.c.

References gv_get_vect().

Referenced by GV_select_surf(), and GV_unselect_surf().

◆ GV_unselect_surf()

int GV_unselect_surf	(	int	hv,
		int	hs
	)

Unselect surface.

Parameters

hv	vector set id
hs	surface id

Returns: 1 on success; -1 on error

Definition at line 422 of file gv2.c.

References gv_get_vect(), and GV_surf_is_selected().

◆ GV_unset_style_thematic()

int GV_unset_style_thematic ( int id )

Make style for thematic mapping inactive.

Parameters

id	vector set id

Returns: 1 on success; -1 on error (point set not found)

Definition at line 320 of file gv2.c.

References G_debug(), gv_get_vect(), and NULL.

◆ gv_update_drapesurfs()

void gv_update_drapesurfs ( void )

Update drape surfaces.

Call after surface is deleted

Definition at line 157 of file gv.c.

References gs_get_surf(), and NULL.

Referenced by GS_delete_surface().

◆ GV_vect_exists()

int GV_vect_exists ( int id )

Check if vector set exists.

Parameters

id	vector set id

Returns: 0 not found; 1 found

Definition at line 36 of file gv2.c.

References G_debug(), gv_get_vect(), and NULL.

Referenced by GV_delete_vector().

◆ gvd_draw_lineonsurf()

void gvd_draw_lineonsurf	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		int	color
	)

Draw line on surface.

Parameters

gs	surface
bgn	first line point
end	end line point
color	color value

Definition at line 299 of file gvd.c.

References gs_point_is_masked(), gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_vert_func(), and gsdrape_get_segments().

◆ gvd_vect()

int gvd_vect	(	geovect *	gv,
		geosurf *	gs,
		int	do_fast
	)

Draw vector set.

Need to think about translations - If user translates surface, vector should automatically go with it, but translating vector should translate it relative to surface on which it's displayed?

Handling mask checking here, but may be more appropriate to handle in get_drape_segments?

Parameters

gv	vector set
gs	surface
do_fast	non-zero for fast mode

Returns

Definition at line 79 of file gvd.c.

References ATT_TOPO, CHK_FREQ, CM_COLOR, CONST_ATT, G_debug(), G_free(), G_malloc, GS_check_cancel(), gs_clip_segment(), gs_get_att_src(), GS_get_scale(), gs_get_zrange(), gs_point_is_masked(), gs_update_curmask(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_translate(), gsd_vert_func(), gsdrape_get_segments(), gv_decimate_lines(), MAP_ATT, NULL, OGSF_LINE, OGSF_POLYGON, X, Y, and Z.

Referenced by GV_draw_fastvect(), and GV_draw_vect().

◆ gvl_align_data()

void gvl_align_data	(	int	pos,
		unsigned char **	data
	)

Append data to buffer.

Parameters

pos	position index
data	data buffer

Definition at line 777 of file gvl_calc.c.

References G_debug(), G_free(), G_realloc, and NULL.

Referenced by gvl_isosurf_calc(), and slice_calc().

◆ GVL_alldraw_vol()

void GVL_alldraw_vol ( void )

Draw all volume sets.

Definition at line 447 of file gvl2.c.

References GVL_draw_vol().

Referenced by gk_follow_frames(), and GK_show_vol().

◆ GVL_alldraw_wire()

void GVL_alldraw_wire ( void )

Draw all volume sets in wire mode.

Definition at line 461 of file gvl2.c.

References GVL_draw_wire().

Referenced by Nviz_draw_quick().

◆ GVL_delete_vol()

int GVL_delete_vol ( int id )

Delete volume set from list.

Parameters

id	volume set id

Returns: 1 on success; -1 on error (invalid volume set id)

Definition at line 210 of file gvl2.c.

References G_debug(), gvl_delete_vol(), GVL_isosurf_del(), GVL_isosurf_num_isosurfs(), GVL_slice_del(), GVL_slice_num_slices(), and GVL_vol_exists().

Referenced by Nviz_new_map_obj().

◆ gvl_delete_vol()

void gvl_delete_vol ( int id )

Remove volume set from list.

Parameters

id	volume set id

Definition at line 244 of file gvl.c.

References G_debug(), gvl_free_vol(), and gvl_get_vol().

Referenced by GVL_delete_vol().

◆ GVL_draw_vol()

void GVL_draw_vol ( int vid )

Draw volume set.

Parameters

vid	volume set id

Definition at line 408 of file gvl2.c.

References gvl_get_vol(), gvld_vol(), and gvld_wind3_box().

Referenced by GVL_alldraw_vol(), and Nviz_draw_all_vol().

◆ GVL_draw_wire()

void GVL_draw_wire ( int id )

Draw volume in wire mode.

Parameters

id	volume set id

Definition at line 429 of file gvl2.c.

References G_debug(), gvl_get_vol(), and gvld_wire_vol().

Referenced by GVL_alldraw_wire().

◆ gvl_file_end_read()

int gvl_file_end_read ( geovol_file * vf )

End read - free buffer memory.

Parameters

vf	pointer to geovol_file struct

Returns: -1 on failure; 1 on success

Definition at line 1016 of file gvl_file.c.

References free_slice_buff(), free_vol_buff(), MODE_FULL, MODE_SLICE, and STATUS_READY.

Referenced by gvl_isosurf_calc(), and slice_calc().

◆ gvl_file_free_datah()

int gvl_file_free_datah ( int id )

Free geovol_file structure for given handle.

Parameters

id

Returns

Definition at line 364 of file gvl_file.c.

References close_volfile(), free_volfile_buffs(), G_debug(), G_free(), and NULL.

Referenced by gvl_free_volmem(), and gvl_isosurf_set_att_src().

◆ gvl_file_get_data_type()

int gvl_file_get_data_type ( geovol_file * vf )

Get data type for given handle.

Parameters

vf	pointer to geovol_file struct

Returns: data type

Definition at line 202 of file gvl_file.c.

Referenced by iso_get_cube_value(), and slice_get_value().

◆ gvl_file_get_file_type()

int gvl_file_get_file_type ( geovol_file * vf )

Get file type for given handle.

Parameters

vf	pointer to geovol_file struct

Returns: file type

Definition at line 190 of file gvl_file.c.

◆ gvl_file_get_min_max()

void gvl_file_get_min_max	(	geovol_file *	vf,
		double *	min,
		double *	max
	)

Get minimum and maximum value in volume file.

Parameters

	vf	pointer to geovol_file struct
[out]	min	min value
[out]	max	max value

Definition at line 214 of file gvl_file.c.

References max, and min.

Referenced by iso_get_range().

◆ gvl_file_get_name()

char * gvl_file_get_name ( int id )

Get file name for given handle.

Parameters

id handle id

Returns: file name; NULL on failure

Definition at line 165 of file gvl_file.c.

References GPATH_MAX, NULL, and strcpy.

Referenced by GVL_get_volname(), GVL_isosurf_get_att(), gvl_slices_calc(), and gvld_isosurf().

◆ gvl_file_get_value()

int gvl_file_get_value	(	geovol_file *	vf,
		int	x,
		int	y,
		int	z,
		void *	value
	)

Get value for volume file at x, y, z.

Parameters

	vf	pointer to geovol_file struct
	x,y,z
[out]	value

Returns: -1 on failure; 1 on success

Definition at line 1050 of file gvl_file.c.

References get_direct_value(), get_slice_value(), get_vol_value(), MODE_DIRECT, MODE_FULL, MODE_PRELOAD, MODE_SLICE, STATUS_BUSY, and x.

Referenced by iso_get_cube_value(), and slice_get_value().

◆ gvl_file_get_volfile()

geovol_file * gvl_file_get_volfile ( int id )

Get geovol_file structure for given handle.

Parameters

id

Returns: pointer to geovol_file struct; NULL on failure

Definition at line 117 of file gvl_file.c.

References NULL.

Referenced by gvl_isosurf_calc(), iso_get_cube_value(), iso_get_range(), slice_calc(), and slice_get_value().

◆ gvl_file_is_null_value()

int gvl_file_is_null_value	(	geovol_file *	vf,
		void *	value
	)

Check for null value.

Parameters

vf	pointer to geovol_file struct
value	data value

Returns: -1 on failure; 1 on success

Definition at line 1087 of file gvl_file.c.

References is_null_g3d_value(), and VOL_FTYPE_RASTER3D.

Referenced by iso_get_cube_value().

◆ gvl_file_newh()

int gvl_file_newh	(	const char *	,
		IFLAG
	)

Referenced by gvl_isosurf_set_att_map(), and GVL_load_vol().

◆ gvl_file_set_mode()

int gvl_file_set_mode	(	geovol_file *	,
		IFLAG
	)

Referenced by gvl_isosurf_calc(), and slice_calc().

◆ gvl_file_set_slices_param()

int gvl_file_set_slices_param	(	geovol_file *	vf,
		int	n,
		int	b
	)

Set parameters for slice reading.

Parameters

vf	pointer to geovol_file struct
n
b

Returns: -1 on failure; 1 on success

Definition at line 1166 of file gvl_file.c.

References b, MODE_SLICE, and STATUS_BUSY.

◆ gvl_file_start_read()

int gvl_file_start_read ( geovol_file * vf )

Start read - allocate memory buffer a read first data into buffer.

Parameters

vf	pointer to geovol_file struct

Returns: -1 on failure; 1 on success

Definition at line 965 of file gvl_file.c.

References alloc_slice_buff(), alloc_vol_buff(), MODE_FULL, MODE_SLICE, read_slice(), read_vol(), and STATUS_BUSY.

Referenced by gvl_isosurf_calc(), and slice_calc().

◆ gvl_free_vol()

int gvl_free_vol ( geovol * fvl )

Free geovol struct.

Parameters

fvl	pointer to geovol struct

Returns: -1 on failure; 1 on success

Definition at line 267 of file gvl.c.

References G_debug(), G_free(), gvl_free_volmem(), and NULL.

Referenced by gvl_delete_vol().

◆ gvl_free_volmem()

void gvl_free_volmem ( geovol * fvl )

Free geovol struct memory.

Parameters

fvl	pointer to geovol struct

Definition at line 316 of file gvl.c.

References gvl_file_free_datah().

Referenced by gvl_free_vol().

◆ GVL_Get_ClientData()

void * GVL_Get_ClientData ( int id )

Get client data.

Parameters

id	volume set id

Returns: pointer to client data; NULL on error

Definition at line 504 of file gvl2.c.

References gvl_get_vol(), and NULL.

◆ Gvl_get_color_for_value()

int Gvl_get_color_for_value	(	void *	color_data,
		float *	value
	)

Get color for value.

Parameters

color_data	color data value
value	data value

Returns: color value

Definition at line 82 of file gvl3.c.

References b, g, r, and Rast_get_f_color().

Referenced by iso_calc_cube(), and slice_calc().

◆ GVL_get_dims()

void GVL_get_dims	(	int	id,
		int *	rows,
		int *	cols,
		int *	depths
	)

Get volume dimensions.

Parameters

	id	volume set id
[out]	rows,cols,depths	number of rows, cols, depths

Definition at line 309 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by Nviz_set_volume_attr_default().

◆ gvl_get_last_vol()

geovol * gvl_get_last_vol ( void )

Get last volume set from the list.

Returns: pointer to geovol struct; NULL on failure

Definition at line 124 of file gvl.c.

References G_debug(), and NULL.

Referenced by gvl_get_new_vol().

◆ gvl_get_new_vol()

geovol * gvl_get_new_vol ( void )

Allocate new volume set and add it to the list.

Returns: pointer to geovol struct; NULL on failure

Definition at line 148 of file gvl.c.

References FIRST_VOL_ID, G_debug(), G_malloc, gvl_get_last_vol(), and NULL.

Referenced by GVL_new_vol().

◆ gvl_get_prev_vol()

geovol * gvl_get_prev_vol ( int id )

Get previous volume.

Parameters

id	current volume set id

Returns: pointer to geovol struct; NULL on failure

Definition at line 64 of file gvl.c.

References G_debug(), g_vol::gvol_id, g_vol::next, and NULL.

◆ GVL_get_region()

int GVL_get_region	(	float *	n,
		float *	s,
		float *	w,
		float *	e,
		float *	t,
		float *	b
	)

Get region extent settings.

Parameters

[out]	n,s,w,e	north, south, west, east
[out]	t,b	top, bottom

Returns: 1

Definition at line 79 of file gvl2.c.

References b, and t.

◆ GVL_get_trans()

int GVL_get_trans	(	int	id,
		float *	xtrans,
		float *	ytrans,
		float *	ztrans
	)

Get trans ?

Parameters

	id	volume set id
[out]	xtrans,ytrans,ztrans	x/y/z trans values

Returns: 1 on success; -1 on error

Definition at line 365 of file gvl2.c.

References gvl_get_vol().

◆ gvl_get_vol()

geovol * gvl_get_vol ( int id )

Get volume set structure.

Parameters

id	volume set id

Returns: pointer to geovol struct; NULL on failure

Definition at line 40 of file gvl.c.

References G_debug(), and NULL.

Referenced by gvl_delete_vol(), GVL_draw_vol(), GVL_draw_wire(), GVL_Get_ClientData(), GVL_get_dims(), GVL_get_trans(), GVL_get_volname(), GVL_isosurf_add(), GVL_isosurf_del(), GVL_isosurf_get_drawmode(), GVL_isosurf_get_drawres(), gvl_isosurf_get_isosurf(), GVL_isosurf_move_down(), GVL_isosurf_move_up(), GVL_isosurf_num_isosurfs(), GVL_isosurf_set_drawmode(), GVL_isosurf_set_drawres(), GVL_load_vol(), GVL_Set_ClientData(), GVL_set_draw_wire(), GVL_set_focus_center_map(), GVL_set_trans(), GVL_slice_add(), GVL_slice_del(), GVL_slice_get_drawmode(), GVL_slice_get_drawres(), GVL_slice_get_pos(), gvl_slice_get_slice(), GVL_slice_move_down(), GVL_slice_move_up(), GVL_slice_num_slices(), GVL_slice_set_drawmode(), GVL_slice_set_drawres(), GVL_slice_set_pos(), and GVL_vol_exists().

◆ GVL_get_vol_list()

int * GVL_get_vol_list ( int * numvols )

Get list of loaded volume sets.

Must be freed if not needed!

Parameters

[out] numvols number of volume sets

Returns: pointer to list of volume sets; NULL on error

Definition at line 181 of file gvl2.c.

References G_malloc, and NULL.

Referenced by Nviz_draw_all_vol(), and Nviz_set_focus_map().

◆ GVL_get_volname()

int GVL_get_volname	(	int	id,
		char *	filename
	)

Get volume set name.

Parameters

	id	volume set id
[out]	filename	name (must be allocated)

Returns: -1 on error; 1 on success

Definition at line 286 of file gvl2.c.

References gvl_file_get_name(), gvl_get_vol(), NULL, and strcpy.

◆ GVL_get_window()

void * GVL_get_window ( void )

Get window.

Todo:: gvl_file.c use this - change

Returns: pointer to RASTER3D_Region struct (static)

Definition at line 98 of file gvl2.c.

◆ gvl_get_xextents()

int gvl_get_xextents	(	geovol *	gvl,
		float *	min,
		float *	max
	)

Get volume x-extent value.

Parameters

	gvl	pointer to geovol struct
[out]	min	x-min value
[out]	max	y-max value

Returns: 1

Definition at line 354 of file gvl.c.

References max, and min.

Referenced by gvl_get_xrange().

◆ gvl_get_xrange()

int gvl_get_xrange	(	float *	min,
		float *	max
	)

Get volume x-range value.

Parameters

[out]	min	x-min value
[out]	max	x-max value

Returns: 1

Definition at line 404 of file gvl.c.

References gvl_get_xextents(), max, and min.

◆ gvl_get_yextents()

int gvl_get_yextents	(	geovol *	gvl,
		float *	min,
		float *	max
	)

Get volume y-extent value.

Parameters

	gvl	pointer to geovol struct
[out]	min	y-min value
[out]	max	y-max value

Returns: 1

Definition at line 371 of file gvl.c.

References max, and min.

Referenced by gvl_get_yrange().

◆ gvl_get_yrange()

int gvl_get_yrange	(	float *	min,
		float *	max
	)

Get volume y-range value.

Parameters

[out]	min	y-min value
[out]	max	y-max value

Returns: 1

Definition at line 441 of file gvl.c.

References gvl_get_yextents(), max, and min.

◆ gvl_get_zextents()

int gvl_get_zextents	(	geovol *	gvl,
		float *	min,
		float *	max
	)

Get volume z-extent value.

Parameters

	gvl	pointer to geovol struct
[out]	min	z-min value
[out]	max	z-max value

Returns: 1

Definition at line 388 of file gvl.c.

References max, and min.

Referenced by gvl_get_zrange().

◆ gvl_get_zrange()

int gvl_get_zrange	(	float *	min,
		float *	max
	)

Get volume z-range value.

Parameters

[out]	min	z-min value
[out]	max	z-max value

Returns: 1

Definition at line 478 of file gvl.c.

References gvl_get_zextents(), max, and min.

Referenced by GS_get_zrange().

◆ gvl_getall_vols()

int gvl_getall_vols ( geovol ** gvols )

Get all volumes.

Parameters

[out] gvols list of geovol structs

Returns: number of available volume sets

Definition at line 86 of file gvl.c.

References G_debug().

◆ GVL_init_region()

void GVL_init_region ( void )

Initialize 3D region.

Set region extent (N,S,W,E,T,B)

Definition at line 57 of file gvl2.c.

References NULL, and Rast3d_read_window().

◆ gvl_init_vol()

int gvl_init_vol	(	geovol *	gvl,
		double	ox,
		double	oy,
		double	oz,
		int	rows,
		int	cols,
		int	depths,
		double	xres,
		double	yres,
		double	zres
	)

Initialize geovol structure.

Parameters

gvl	pointer to geovol struct
ox,oy,oz
rows	number of rows
cols	number of cols
xres,yres,zres	x/y/z resolution value

Returns: -1 on failure; 1 on success

Definition at line 187 of file gvl.c.

References DM_GOURAUD, G_debug(), G_zero(), MAX_ISOSURFS, MAX_SLICES, and NULL.

Referenced by GVL_new_vol().

◆ GVL_isosurf_add()

int GVL_isosurf_add ( int id )

Add isosurface.

Parameters

id	volume set id

Returns: -1 on error (invalid volume set id; 1 on success

Definition at line 667 of file gvl2.c.

References G_debug(), G_malloc, gvl_get_vol(), gvl_isosurf_init(), and MAX_ISOSURFS.

◆ gvl_isosurf_calc()

int gvl_isosurf_calc ( geovol * gvol )

Fill data structure with computed isosurfaces polygons.

Parameters

gvol	pointer to geovol struct

Returns: 1

Definition at line 585 of file gvl_calc.c.

References geovol_isosurf::att, geovol_isosurf_att::att_src, ATT_TOPO, geovol_isosurf_att::changed, Cols, geovol_isosurf::data, geovol_isosurf::data_desc, Depths, G_free(), G_malloc, gvl_align_data(), gvl_file_end_read(), gvl_file_get_volfile(), gvl_file_set_mode(), gvl_file_start_read(), gvl_write_char(), geovol_isosurf_att::hfile, IS_IN_DATA, iso_calc_cube(), MAP_ATT, MAX_ATTS, NULL, read, ResX, ResY, ResZ, Rows, SET_IN_DATA, and x.

Referenced by gvld_vol().

◆ GVL_isosurf_del()

int GVL_isosurf_del	(	int	id,
		int	isosurf_id
	)

Delete isosurface.

Parameters

id	volume set id
isosurf_id	isosurface id

Returns: -1 on error; 1 on success

Definition at line 704 of file gvl2.c.

References G_debug(), G_free(), gvl_get_vol(), gvl_isosurf_freemem(), and gvl_isosurf_get_isosurf().

Referenced by GVL_delete_vol().

◆ gvl_isosurf_freemem()

int gvl_isosurf_freemem ( geovol_isosurf * isosurf )

Free geovol_isosurf struct.

Parameters

isosurf pointer to geovol_isosurf struct

Returns: -1 on failure; 1 on success

Definition at line 553 of file gvl.c.

References geovol_isosurf::data, G_debug(), G_free(), gvl_isosurf_set_att_src(), MAX_ATTS, and NOTSET_ATT.

Referenced by GVL_isosurf_del().

◆ GVL_isosurf_get_att()

int GVL_isosurf_get_att	(	int	id,
		int	isosurf_id,
		int	att,
		int *	set,
		float *	constant,
		char *	mapname
	)

Get isosurface attributes.

Parameters

	id	volume set id
	isosurf_id	surface id
	att	attribute id
[out]	set
[out]	constant
[out]	mapname

Returns: -1 on error; 1 on success

Definition at line 815 of file gvl2.c.

References geovol_isosurf::att, CONST_ATT, geovol_isosurf_att::constant, G_debug(), gvl_file_get_name(), gvl_isosurf_get_att_src(), gvl_isosurf_get_isosurf(), geovol_isosurf_att::hfile, MAP_ATT, and strcpy.

◆ gvl_isosurf_get_att_src()

int gvl_isosurf_get_att_src	(	geovol_isosurf *	isosurf,
		int	desc
	)

Get attribute source.

Parameters

isosurf	pointer to geovol_isosurf struct
desc	attribute id

Returns: -1 on failure; attribute value

Definition at line 607 of file gvl.c.

References geovol_isosurf::att, geovol_isosurf_att::att_src, G_debug(), and LEGAL_ATT.

Referenced by GVL_isosurf_get_att(), and gvl_isosurf_set_att_src().

◆ GVL_isosurf_get_drawmode()

int GVL_isosurf_get_drawmode	(	int	id,
		int *	mode
	)

Get isosurface draw mode.

Parameters

	id	volume set id
[out]	mode	draw-mode

Returns: 1 on success; -1 on error

Definition at line 618 of file gvl2.c.

References gvl_get_vol().

◆ GVL_isosurf_get_drawres()

void GVL_isosurf_get_drawres	(	int	id,
		int *	xres,
		int *	yres,
		int *	zres
	)

Get draw resolution for isosurface.

Todo:: error handling

Parameters

	id	volume set id
[out]	xres,yres,zres	x/y/z resolution value

Definition at line 555 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_isosurf_get_flags()

int GVL_isosurf_get_flags	(	int	id,
		int	isosurf_id,
		int *	inout
	)

Get isosurface flags.

Parameters

	id	volume set id
	isosurf_id	isosurface id
[out]	inout	map name

Returns: 1 on success; -1 on error

Definition at line 957 of file gvl2.c.

References G_debug(), gvl_isosurf_get_isosurf(), and geovol_isosurf::inout_mode.

◆ gvl_isosurf_get_isosurf()

geovol_isosurf * gvl_isosurf_get_isosurf	(	int	id,
		int	isosurf_id
	)

Get isosurface of given volume set.

Parameters

id	volume set id
isosurf_id	isosurface id (0 - MAX_ISOSURFS)

Returns: pointer to geovol_isosurf struct; NULL on failure

Definition at line 580 of file gvl.c.

References G_debug(), gvl_get_vol(), and NULL.

Referenced by GVL_isosurf_del(), GVL_isosurf_get_att(), GVL_isosurf_get_flags(), GVL_isosurf_get_maskmode(), GVL_isosurf_set_att_const(), GVL_isosurf_set_att_map(), GVL_isosurf_set_flags(), GVL_isosurf_set_maskmode(), and GVL_isosurf_unset_att().

◆ GVL_isosurf_get_maskmode()

int GVL_isosurf_get_maskmode	(	int	id,
		int	isosurf_id,
		int *	mode
	)

Get isosurface mask mode.

Parameters

id	volume set id
isosurf_id	isosurface id
mode	attribute mode

Returns: 1 on success; -1 on error

Definition at line 1062 of file gvl2.c.

References geovol_isosurf::att, ATT_MASK, geovol_isosurf_att::constant, and gvl_isosurf_get_isosurf().

◆ gvl_isosurf_init()

int gvl_isosurf_init ( geovol_isosurf * isosurf )

Initialize geovol_isosurf struct.

Parameters

isosurf pointer to geovol_isosurf struct

Returns: -1 on failure; 1 on success

Definition at line 520 of file gvl.c.

References geovol_isosurf::att, geovol_isosurf_att::att_data, geovol_isosurf_att::att_src, geovol_isosurf_att::changed, geovol_isosurf_att::constant, geovol_isosurf::data, geovol_isosurf::data_desc, G_debug(), geovol_isosurf_att::hfile, geovol_isosurf::inout_mode, MAX_ATTS, NOTSET_ATT, NULL, and geovol_isosurf_att::user_func.

Referenced by GVL_isosurf_add().

◆ GVL_isosurf_move_down()

int GVL_isosurf_move_down	(	int	id,
		int	isosurf_id
	)

Move down isosurface in list.

Parameters

id	volume set id
isosurf_id	isosurface id

Returns: -1 on error; 1 on success

Definition at line 777 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_isosurf_move_up()

int GVL_isosurf_move_up	(	int	id,
		int	isosurf_id
	)

Move up isosurface in list.

Parameters

id	volume set id
isosurf_id	isosurface id

Returns: -1 on error; 1 on success

Definition at line 743 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_isosurf_num_isosurfs()

int GVL_isosurf_num_isosurfs ( int id )

Get number of available isosurfaces.

Parameters

id	volume set id

Returns: number of isosurfaces; -1 on error

Definition at line 1008 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by GVL_delete_vol().

◆ gvl_isosurf_set_att_changed()

int gvl_isosurf_set_att_changed	(	geovol_isosurf *	isosurf,
		int	desc
	)

Set attribute changed.

Parameters

isosurf	pointer to geovol_isosurf struct
desc	attribute id

Returns: -1 on failure; 1 on success

Definition at line 723 of file gvl.c.

References geovol_isosurf::att, ATT_MASK, ATT_TOPO, geovol_isosurf_att::changed, G_debug(), LEGAL_ATT, and MAX_ATTS.

Referenced by gvl_isosurf_set_att_src(), and GVL_isosurf_set_drawres().

◆ gvl_isosurf_set_att_const()

int gvl_isosurf_set_att_const	(	geovol_isosurf *	isosurf,
		int	desc,
		float	constant
	)

Set isosurface attribute constant.

Parameters

isosurf	pointer to geovol_isosurf struct
desc	attribute descriptor
constant	attribute value

Returns: -1 on failure; 1 on success

Definition at line 665 of file gvl.c.

References geovol_isosurf::att, CONST_ATT, geovol_isosurf_att::constant, G_debug(), and gvl_isosurf_set_att_src().

Referenced by GVL_isosurf_set_att_const().

◆ GVL_isosurf_set_att_const()

int GVL_isosurf_set_att_const	(	int	id,
		int	isosurf_id,
		int	att,
		float	constant
	)

Set constant isosurface attribute.

Attributes:

ATT_NORM
ATT_TOPO topography (level) constant
ATT_COLOR color map/constant
ATT_MASK mask map
ATT_TRANSP transparency map/constant
ATT_SHINE shininess map/constant
ATT_EMIT emission map/constant

Parameters

id	volume set id
isosurf_id	isosurface id (0 - MAX_ISOSURFS)
att	attribute descriptor
constant	constant value

Returns: 1 on success; -1 on error

Definition at line 890 of file gvl2.c.

References G_debug(), gvl_isosurf_get_isosurf(), and gvl_isosurf_set_att_const().

◆ gvl_isosurf_set_att_map()

int gvl_isosurf_set_att_map	(	geovol_isosurf *	isosurf,
		int	desc,
		const char *	filename
	)

Set attribute map.

Parameters

isosurf	pointer to geovol_isosurf struct
desc	attribute id
filename	filename

Returns: -1 on failure; 1 on success

Definition at line 690 of file gvl.c.

References geovol_isosurf::att, ATT_COLOR, geovol_isosurf_att::att_data, G_debug(), gvl_file_newh(), gvl_isosurf_set_att_src(), Gvl_load_colors_data(), geovol_isosurf_att::hfile, MAP_ATT, and VOL_FTYPE_RASTER3D.

Referenced by GVL_isosurf_set_att_map().

◆ GVL_isosurf_set_att_map()

int GVL_isosurf_set_att_map	(	int	id,
		int	isosurf_id,
		int	att,
		const char *	filename
	)

Set isosurface map attribute.

Attributes:

ATT_NORM
ATT_TOPO topography (level) constant
ATT_COLOR color map/constant
ATT_MASK mask map
ATT_TRANSP transparency map/constant
ATT_SHINE shininess map/constant
ATT_EMIT emission map/constant

Parameters

id	volume set id
isosurf_id	isosurface id (0 - MAX_ISOSURFS)
att	attribute descriptor
filename	map name

Returns: 1 on success; -1 on error

Definition at line 928 of file gvl2.c.

References G_debug(), gvl_isosurf_get_isosurf(), and gvl_isosurf_set_att_map().

◆ gvl_isosurf_set_att_src()

int gvl_isosurf_set_att_src	(	geovol_isosurf *	isosurf,
		int	desc,
		int	src
	)

Set attribute source.

Parameters

isosurf	pointer to geovol_isosurf struct
desc	attribute id
src	attribute value

Returns: -1 on failure; 1 on success

Definition at line 632 of file gvl.c.

References geovol_isosurf::att, ATT_COLOR, geovol_isosurf_att::att_data, geovol_isosurf_att::att_src, G_debug(), gvl_file_free_datah(), gvl_isosurf_get_att_src(), gvl_isosurf_set_att_changed(), Gvl_unload_colors_data(), geovol_isosurf_att::hfile, LEGAL_SRC, and MAP_ATT.

Referenced by gvl_isosurf_freemem(), gvl_isosurf_set_att_const(), gvl_isosurf_set_att_map(), and GVL_isosurf_unset_att().

◆ GVL_isosurf_set_drawmode()

int GVL_isosurf_set_drawmode	(	int	id,
		int	mode
	)

Set isosurface draw mode.

Parameters

id	volume set id
mode	draw mode

Returns: 0 on success; -1 on error (invalid volume set id)

Definition at line 642 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by Nviz_set_volume_attr_default().

◆ GVL_isosurf_set_drawres()

int GVL_isosurf_set_drawres	(	int	id,
		int	xres,
		int	yres,
		int	zres
	)

Set isosurface draw resolution.

Parameters

id	volume set id
xres,yres,zres	x/y/z resolution value

Returns: -1 on error (invalid values/volume set id); 0 on success

Definition at line 581 of file gvl2.c.

References ATT_TOPO, G_debug(), gvl_get_vol(), and gvl_isosurf_set_att_changed().

Referenced by Nviz_set_volume_attr_default().

◆ GVL_isosurf_set_flags()

int GVL_isosurf_set_flags	(	int	id,
		int	isosurf_id,
		int	inout
	)

Set isosurface flags.

Parameters

id	volume set id
isosurf_id	isosurface id
inout	map name

Returns: 1 on success; -1 on error

Definition at line 983 of file gvl2.c.

References G_debug(), gvl_isosurf_get_isosurf(), and geovol_isosurf::inout_mode.

◆ GVL_isosurf_set_maskmode()

int GVL_isosurf_set_maskmode	(	int	id,
		int	isosurf_id,
		int	mode
	)

Set mask attribute mode.

Mask attribute special: constant is set to indicate invert or no

Parameters

id	volume set id
isosurf_id	isosurface id
mode	attribute mode

Returns: mode id; -1 on error

Definition at line 1035 of file gvl2.c.

References geovol_isosurf::att, ATT_MASK, geovol_isosurf_att::constant, G_debug(), and gvl_isosurf_get_isosurf().

◆ GVL_isosurf_unset_att()

int GVL_isosurf_unset_att	(	int	id,
		int	isosurf_id,
		int	att
	)

Unset isosurface attributes.

Parameters

id	volume set id
isosurf_id	isosurface id
att	attribute id

Returns: ?; -1 on error

Definition at line 855 of file gvl2.c.

References G_debug(), gvl_isosurf_get_isosurf(), gvl_isosurf_set_att_src(), and NOTSET_ATT.

◆ GVL_libinit()

void GVL_libinit ( void )

Library initialization for volumes.

Set region extent (N,S,W,E,T,B)

Definition at line 37 of file gvl2.c.

References Rast3d_get_window(), and Rast3d_init_defaults().

◆ Gvl_load_colors_data()

int Gvl_load_colors_data	(	void **	color_data,
		const char *	name
	)

Load color table.

Parameters

[out]	color_data	color data buffer
	name	3D raster map name

Returns: -1 on failure; 1 on success

Definition at line 34 of file gvl3.c.

References _, G_find_raster3d(), G_free(), G_malloc, G_warning(), name, NULL, and Rast3d_read_colors().

Referenced by gvl_isosurf_set_att_map(), and gvl_slices_calc().

◆ GVL_load_vol()

int GVL_load_vol	(	int	id,
		const char *	filename
	)

Load 3d raster map to volume set.

Parameters

id	volume set id
filename	3d raster map name

Returns: -1 on error; 0 on success

Definition at line 256 of file gvl2.c.

References _, G_debug(), G_message(), gvl_file_newh(), gvl_get_vol(), NULL, and VOL_FTYPE_RASTER3D.

Referenced by Nviz_new_map_obj().

◆ GVL_new_vol()

int GVL_new_vol ( void )

Create new volume set.

Returns: volume set id; -1 on error

Definition at line 136 of file gvl2.c.

References G_debug(), gvl_get_new_vol(), gvl_init_vol(), and MAX_VOLS.

Referenced by Nviz_new_map_obj().

◆ GVL_num_vols()

int GVL_num_vols ( void )

Get number of loaded volume sets.

Returns: number of volume sets

Definition at line 166 of file gvl2.c.

References gvl_num_vols().

Referenced by Nviz_new_map_obj(), and Nviz_set_focus_map().

◆ gvl_num_vols()

int gvl_num_vols ( void )

Get number of loaded volume sets.

Returns: number of volumes

Definition at line 105 of file gvl.c.

References G_debug().

Referenced by GVL_num_vols().

◆ gvl_read_char()

unsigned char gvl_read_char	(	int	pos,
		const unsigned char *	data
	)

Read char.

Parameters

pos	position index
data	data buffer

Returns: char on success; NULL on failure

Definition at line 763 of file gvl_calc.c.

◆ GVL_Set_ClientData()

int GVL_Set_ClientData	(	int	id,
		void *	clientd
	)

Set client data for volume set.

Parameters

id	volume set id
clientd	pointer to client data

Returns: 1 on success; -1 on error

Definition at line 481 of file gvl2.c.

References gvl_get_vol().

◆ GVL_set_draw_wire()

void GVL_set_draw_wire	(	int	id,
		int	draw_wire
	)

Set drawing wire box.

Parameters

id	volume set id
draw_wire	1 for drawing wire, 0 otherwise

Definition at line 388 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_set_focus_center_map()

void GVL_set_focus_center_map ( int id )

Set focus on map center.

Parameters

id	volume set id

Definition at line 522 of file gvl2.c.

References G_debug(), GS_set_focus(), gvl_get_vol(), X, Y, and Z.

Referenced by Nviz_set_focus_map().

◆ GVL_set_trans()

void GVL_set_trans	(	int	id,
		float	xtrans,
		float	ytrans,
		float	ztrans
	)

Set trans ?

Parameters

id	volume set id
xtrans,ytrans,ztrans	x/y/z trans values

Definition at line 339 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_slice_add()

int GVL_slice_add ( int id )

Add slice.

Parameters

id	volume set id

Returns: -1 on error; 1 on success

Definition at line 1200 of file gvl2.c.

References G_debug(), G_malloc, gvl_get_vol(), gvl_slice_init(), MAX_SLICES, and NULL.

◆ GVL_slice_del()

int GVL_slice_del	(	int	id,
		int	slice_id
	)

Delete slice.

Parameters

id	volume set id
slice_id	slice id

Returns: -1 on error; 1 on success

Definition at line 1236 of file gvl2.c.

References G_debug(), G_free(), gvl_get_vol(), gvl_slice_freemem(), and gvl_slice_get_slice().

Referenced by GVL_delete_vol().

◆ gvl_slice_freemem()

int gvl_slice_freemem ( geovol_slice * slice )

Free geovol_slice struct.

Parameters

slice pointer to geovol_slice struct

Returns: -1 on failure; 1 on success

Definition at line 782 of file gvl.c.

References geovol_slice::data, G_debug(), and G_free().

Referenced by GVL_slice_del().

◆ GVL_slice_get_drawmode()

int GVL_slice_get_drawmode	(	int	id,
		int *	mode
	)

Get slice draw mode.

Parameters

	id	volume set id
[out]	mode	draw mode

Returns: 1 on success; -1 on error (invalid id)

Definition at line 1151 of file gvl2.c.

References gvl_get_vol().

◆ GVL_slice_get_drawres()

void GVL_slice_get_drawres	(	int	id,
		int *	xres,
		int *	yres,
		int *	zres
	)

Get draw resolution of slice.

Parameters

	id	volume set id
[out]	xres,yres,zres	x/y/z resolution value

Definition at line 1088 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_slice_get_pos()

int GVL_slice_get_pos	(	int	id,
		int	slice_id,
		float *	x1,
		float *	x2,
		float *	y1,
		float *	y2,
		float *	z1,
		float *	z2,
		int *	dir
	)

Get slice position.

Parameters

	id	volume set id
	slice_id	slice id
[out]	x1,y1,z1	coordinates ?
[out]	x2,y2,z2	coordinates ?
[out]	dir	direction

Returns: -1 on error; 1 on success

Definition at line 1369 of file gvl2.c.

References geovol_slice::dir, gvl_get_vol(), gvl_slice_get_slice(), X, geovol_slice::x1, geovol_slice::x2, Y, geovol_slice::y1, geovol_slice::y2, Z, geovol_slice::z1, and geovol_slice::z2.

◆ gvl_slice_get_slice()

geovol_slice * gvl_slice_get_slice	(	int	id,
		int	slice_id
	)

Get geovol_slice struct.

Parameters

id	volume set id
slice_id	slice id

Returns: pointer to geovol_slice struct; NULL on failure

Definition at line 803 of file gvl.c.

References gvl_get_vol(), and NULL.

Referenced by GVL_slice_del(), GVL_slice_get_pos(), GVL_slice_get_transp(), GVL_slice_set_pos(), and GVL_slice_set_transp().

◆ GVL_slice_get_transp()

int GVL_slice_get_transp	(	int	id,
		int	slice_id,
		int *	transp
	)

Get slice trans ?

Parameters

	id	volume set id
	slice_id	slice id
[out]	transp	transp value

Returns: -1 on error; 1 on success

Definition at line 1489 of file gvl2.c.

References G_debug(), gvl_slice_get_slice(), and geovol_slice::transp.

◆ gvl_slice_init()

int gvl_slice_init ( geovol_slice * slice )

Initialize geovol_slice struct.

Parameters

slice pointer to geovol_slice struct

Returns: -1 on failure; 1 on success

Definition at line 756 of file gvl.c.

References geovol_slice::changed, geovol_slice::data, G_debug(), geovol_slice::mode, NULL, geovol_slice::transp, geovol_slice::z1, and geovol_slice::z2.

Referenced by GVL_slice_add().

◆ GVL_slice_move_down()

int GVL_slice_move_down	(	int	id,
		int	slice_id
	)

Move down slice.

Parameters

id	volume set id
slice_id	slice id

Returns: -1 on error; 1 on success

Definition at line 1309 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_slice_move_up()

int GVL_slice_move_up	(	int	id,
		int	slice_id
	)

Move up slice.

Parameters

id	volume set id
slice_id	slice id

Returns: -1 on error; 1 on success

Definition at line 1275 of file gvl2.c.

References G_debug(), and gvl_get_vol().

◆ GVL_slice_num_slices()

int GVL_slice_num_slices ( int id )

Get number or slices.

Parameters

id	volume set id

Returns: number of slices; -1 on error

Definition at line 1342 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by GVL_delete_vol().

◆ GVL_slice_set_drawmode()

int GVL_slice_set_drawmode	(	int	id,
		int	mode
	)

Set slice draw mode.

Parameters

id	volume set id
mode	draw mode

Returns: 0 on success; -1 on error (invalid id)

Definition at line 1175 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by Nviz_set_volume_attr_default().

◆ GVL_slice_set_drawres()

int GVL_slice_set_drawres	(	int	id,
		int	xres,
		int	yres,
		int	zres
	)

Set slice draw resolution.

Parameters

id	volume set id
xres,yres,zres	x/y/z resolution value

Returns: 0 on success; -1 on error (invalid value or id)

Definition at line 1114 of file gvl2.c.

References G_debug(), and gvl_get_vol().

Referenced by Nviz_set_volume_attr_default().

◆ GVL_slice_set_pos()

int GVL_slice_set_pos	(	int	id,
		int	slice_id,
		float	x1,
		float	x2,
		float	y1,
		float	y2,
		float	z1,
		float	z2,
		int	dir
	)

Get slice position.

Parameters

id	volume set id
slice_id	slice id
x1,y1,z1	coordinates ?
x2,y2,z2	coordinates ?
dir	direction

Returns: -1 on error; 1 on success

Definition at line 1429 of file gvl2.c.

References geovol_slice::changed, geovol_slice::dir, gvl_get_vol(), gvl_slice_get_slice(), X, geovol_slice::x1, geovol_slice::x2, Y, geovol_slice::y1, geovol_slice::y2, Z, geovol_slice::z1, and geovol_slice::z2.

◆ GVL_slice_set_transp()

int GVL_slice_set_transp	(	int	id,
		int	slice_id,
		int	transp
	)

Set slice trans ?

Parameters

id	volume set id
slice_id	slice id
transp	transp value

Returns: -1 on error; 1 on success

Definition at line 1515 of file gvl2.c.

References G_debug(), gvl_slice_get_slice(), and geovol_slice::transp.

◆ gvl_slices_calc()

int gvl_slices_calc ( geovol * gvol )

Calculate slices for given volume set.

Parameters

gvol	pointer to geovol struct

Returns: 1

Definition at line 1038 of file gvl_calc.c.

References Cols, Depths, G_debug(), gvl_file_get_name(), Gvl_load_colors_data(), Gvl_unload_colors_data(), ResX, ResY, ResZ, Rows, and slice_calc().

Referenced by gvld_vol().

◆ Gvl_unload_colors_data()

int Gvl_unload_colors_data ( void * color_data )

Unload color table.

Parameters

color_data color data buffer

Returns: -1 on failure; 1 on success

Definition at line 65 of file gvl3.c.

References G_free(), and Rast_free_colors().

Referenced by gvl_isosurf_set_att_src(), and gvl_slices_calc().

◆ GVL_vol_exists()

int GVL_vol_exists ( int id )

Check if volume set exists.

Parameters

id	volume set id

Returns: 1 found; 0 not found

Definition at line 111 of file gvl2.c.

References G_debug(), gvl_get_vol(), and NULL.

Referenced by GVL_delete_vol().

◆ gvl_write_char()

void gvl_write_char	(	int	pos,
		unsigned char **	data,
		unsigned char	c
	)

ADD.

Parameters

pos
data
c

Definition at line 736 of file gvl_calc.c.

References BUFFER_SIZE, G_debug(), and G_realloc.

Referenced by gvl_isosurf_calc(), and slice_calc().

◆ gvld_isosurf()

int gvld_isosurf ( geovol * gvl )

Draw volume isosurfaces.

Parameters

gvl	pointer to geovol struct

Returns: -1 on failure; 1 on success

Definition at line 92 of file gvld.c.

References geovol_isosurf::att, ATT_COLOR, ATT_EMIT, ATT_SHINE, geovol_isosurf_att::att_src, ATT_TRANSP, b, cell_table, CM_DIFFUSE, CONST_ATT, geovol_isosurf_att::constant, DM_GOURAUD, CELL_ENTRY::edges, g, G_debug(), G_free(), G_malloc, GS_check_cancel(), GS_get_scale(), gsd_bgnpolygon(), gsd_blend(), gsd_colormode(), gsd_do_scale(), gsd_endpolygon(), gsd_getwindow(), gsd_litvert_func(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_shademodel(), gsd_translate(), gsd_zwritemask(), gvl_file_get_name(), MAP_ATT, CELL_ENTRY::nedges, CELL_ENTRY::npolys, CELL_ENTRY::polys, r, READ, X, x, Y, and Z.

Referenced by gvld_vol().

◆ gvld_slice()

int gvld_slice	(	geovol *	gvl,
		int	ndx
	)

Draw slice.

Parameters

gvl	pointer to geovol struct
ndx

Returns: 1

Definition at line 500 of file gvld.c.

References geovol_slice::data, geovol_slice::dir, DISTANCE_2, gsd_bgntmesh(), gsd_blend(), gsd_endtmesh(), gsd_litvert_func(), gsd_zwritemask(), r, geovol_slice::transp, X, x, geovol_slice::x1, geovol_slice::x2, Y, geovol_slice::y1, geovol_slice::y2, Z, geovol_slice::z1, and geovol_slice::z2.

Referenced by gvld_slices().

◆ gvld_slices()

int gvld_slices ( geovol * gvl )

Draw slices.

Parameters

gvl	pointer to geovol struct

Returns: 0

Definition at line 443 of file gvld.c.

References CM_COLOR, DM_GOURAUD, G_debug(), GS_get_scale(), gsd_blend(), gsd_colormode(), gsd_do_scale(), gsd_getwindow(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_shademodel(), gsd_translate(), gsd_zwritemask(), and gvld_slice().

Referenced by gvld_vol().

◆ gvld_vol()

int gvld_vol ( geovol * gvl )

Draw volume set (slices and isosurfaces)

Parameters

gvl	pointer to geovol struct

Returns: -1 on failure; 1 on success

Definition at line 38 of file gvld.c.

References G_debug(), gvl_isosurf_calc(), gvl_slices_calc(), gvld_isosurf(), and gvld_slices().

Referenced by GVL_draw_vol().

◆ gvld_wind3_box()

int gvld_wind3_box ( geovol * gvl )

Draw volume bounding box.

Parameters

gvl	pointer to geovol struct

Returns: 0

Definition at line 787 of file gvld.c.

References CM_COLOR, DM_FLAT, G_debug(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_shademodel(), gsd_translate(), gsd_vert_func(), X, Y, and Z.

Referenced by GVL_draw_vol(), and gvld_wire_vol().

◆ gvld_wire_isosurf()

int gvld_wire_isosurf ( geovol * gvl )

Draw volume isosurface in draw mode.

Parameters

gvl	pointer to geovol struct [unused]

Returns: 0

Definition at line 423 of file gvld.c.

Referenced by gvld_wire_vol().

◆ gvld_wire_slices()

int gvld_wire_slices ( geovol * gvl )

Draw wire slices.

Parameters

gvl	pointer to geovol struct

Returns: 0

Definition at line 678 of file gvld.c.

References CM_COLOR, geovol_slice::dir, DM_FLAT, G_debug(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_shademodel(), gsd_translate(), gsd_vert_func(), X, geovol_slice::x1, geovol_slice::x2, Y, geovol_slice::y1, geovol_slice::y2, Z, geovol_slice::z1, and geovol_slice::z2.

Referenced by gvld_wire_vol().

◆ gvld_wire_vol()

int gvld_wire_vol ( geovol * gvl )

Draw volume in wire mode (bounding box)

Parameters

gvl	pointer to geovol struct

Returns: -1 on failure; 1 on success

Definition at line 69 of file gvld.c.

References G_debug(), gvld_wind3_box(), gvld_wire_isosurf(), and gvld_wire_slices().

Referenced by GVL_draw_wire().

◆ in_vregion()

int in_vregion	(	geosurf *	gs,
		float *	pt
	)

ADD.

Parameters

	gs	surface (geosurf)
[in]	pt

Returns: 1; 0

Definition at line 698 of file gsdrape.c.

References VCOL2X, VCOLS, VROW2Y, VROWS, X, and Y.

Referenced by gs_distance_onsurf(), GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), order_intersects(), and seg_intersect_vregion().

◆ init_vars()

void init_vars ( geosurf * gs )

Init variables.

for optimization

Parameters

gs	surface (geosurf)

Definition at line 73 of file gs_norms.c.

References ATT_TOPO, gs_get_att_typbuff(), GS_get_scale(), and GS_global_exag().

Referenced by gs_calc_normals().

◆ interp_first_last()

void interp_first_last	(	geosurf *	gs,
		float *	bgn,
		float *	end,
		Point3	f,
		Point3	l
	)

ADD.

Parameters

	gs	surface (geosurf)
[in]	bgn	begin point
[in]	end	end point
[out]	f	first
[out]	l	last

Definition at line 439 of file gsdrape.c.

References ATT_TOPO, l, viewcell_tri_interp(), X, Y, and Z.

Referenced by gsdrape_get_allsegments(), and gsdrape_get_segments().

◆ lin_interp()

double lin_interp	(	float	dt,
		float	val1,
		float	val2
	)

Linear interpolation.

Parameters

dt	coefficient
val2	value 2
val1	value 1

Returns: val1 + dt * (val2 - val1)

Definition at line 545 of file gk.c.

Referenced by gk_make_framesfromkeys(), and gk_make_linear_framesfromkeys().

◆ order_intersects()

int order_intersects	(	geosurf *	gs,
		Point3	first,
		Point3	last,
		int	vi,
		int	hi,
		int	di
	)

ADD.

After all the intersections between the segment and triangle edges have been found, they are in three lists. (intersections with vertical, horizontal, and diagonal triangle edges)

Each list is ordered in space from first to last segment points, but now the lists need to be woven together. This routine starts with the first point of the segment and then checks the next point in each list to find the closest, eliminating duplicates along the way and storing the result in I3d.

Parameters

	gs	surface (geosurf)
[in]	first	first point
[in]	last	last point
[in]	vi
[in]	hi
[in]	di

Returns

Definition at line 731 of file gsdrape.c.

References EPSILON, EQUAL, G_debug(), in_vregion(), X, Y, and Z.

◆ P3toPlane()

int P3toPlane	(	Point3	p1,
		Point3	p2,
		Point3	p3,
		float *	plane
	)

Define plane.

Parameters

[in]	p1,p2,p3	three point on plane
[out]	plane	plane definition

Returns: 1

Definition at line 1334 of file gsdrape.c.

References V3Cross(), W, X, Y, and Z.

Referenced by Point_on_plane().

◆ P_popmatrix()

int P_popmatrix ( void )

Pop top of matrix stack, placing it into the current transformation matrix.

Returns: -1 on failure; 0 on success

Definition at line 188 of file trans.c.

References _, and G_warning().

Referenced by gsd_update_cpnorm(), P_rot(), and P_scale().

◆ P_pushmatrix()

int P_pushmatrix ( void )

Push current transformation matrix onto matrix stack.

Definition at line 167 of file trans.c.

References _, G_warning(), and MAX_STACK.

Referenced by gsd_update_cpnorm(), P_rot(), and P_scale().

◆ P_rot()

void P_rot	(	float	angle,
		char	axis
	)

Rotate matrix.

Parameters

angle	angle value
axis	('x, 'y', 'z')

Definition at line 208 of file trans.c.

References NPI, P_popmatrix(), and P_pushmatrix().

Referenced by gsd_update_cpnorm().

◆ P_scale()

void P_scale	(	float	x,
		float	y,
		float	z
	)

ADD.

Parameters

x,y,z

Definition at line 65 of file trans.c.

References P_popmatrix(), P_pushmatrix(), and x.

◆ P_transform()

void P_transform	(	int	num_vert,
		float(*)	in[4],
		float(*)	out[4]
	)

Transform array of vectors using current T matrix.

Multiply 'in' matrix (homogeneous coordinate generally) by the current transformation matrix, placing the result in 'out'

[in][trans_mat] => [out]

Parameters

num_vert
in
out

Definition at line 107 of file trans.c.

Referenced by gsd_update_cpnorm().

◆ Point_on_plane()

int Point_on_plane	(	Point3	p1,
		Point3	p2,
		Point3	p3,
		Point3	unk
	)

Check if point is on plane.

Plane defined by three points here; user fills in unk[X] & unk[Y]

Parameters

[in,out]	p1,p2,p3	points defining plane
[in,out]	unk	point

Returns: 1 point on plane; 0 point not on plane

Definition at line 1289 of file gsdrape.c.

References P3toPlane(), and XY_intersect_plane().

Referenced by viewcell_tri_interp().

◆ primitive_cone()

void primitive_cone ( unsigned long colr )

Primitives only called after transforms.

Center is actually center at base of 8 sided cone

Parameters

colr	Integer representing the color to use for drawing the cone.

Definition at line 1345 of file gsd_objs.c.

References gsd_bgntfan(), gsd_endtfan(), gsd_litvert_func2(), ogverts, UP_NORM, X, Y, and Z.

Referenced by gsd_3darrow().

◆ primitive_cylinder()

void primitive_cylinder	(	unsigned long	colr,
		int	caps
	)

Primitives only called after transforms.

Center is actually center at base of 8 sided cylinder

Parameters

colr	Integer representing the color to use for drawing the cylinder.
caps	If non zero, draw caps at the bottom and top of the cylinder.

Definition at line 1382 of file gsd_objs.c.

References DOWN_NORM, gsd_bgnqstrip(), gsd_bgntfan(), gsd_endqstrip(), gsd_endtfan(), gsd_litvert_func2(), ogverts, ogvertsplus, ORIGIN, and UP_NORM.

Referenced by gsd_3darrow().

◆ print_256lookup()

void print_256lookup ( int * buff )

Debugging, 256 integer values from buffer.

Todo:: G_debug ?

Parameters

buff	pointer to buffer

Definition at line 369 of file gs.c.

◆ print_bm()

void print_bm ( struct BM * bm )

Print bitmap to stderr.

Parameters

bm	bitmap (BM)

Definition at line 358 of file gs_bm.c.

References BM_get(), BM::cols, and BM::rows.

◆ print_frto()

void print_frto ( float(*) ft[4] )

Debugging, print 'from/to' model coordinates to stderr.

Todo:: G_debug ?

Parameters

ft	pointer to coordinates

Definition at line 339 of file gs.c.

References FROM, TO, X, Y, and Z.

Referenced by print_view_fields().

◆ print_realto()

void print_realto ( float * rt )

Debugging, print 'to' real coordinates to stderr.

Todo:: G_debug ?

Parameters

rt	pointer to coordinates

Definition at line 355 of file gs.c.

References X, Y, and Z.

◆ print_site_fields()

void print_site_fields ( geosite * )

◆ print_surf_fields()

void print_surf_fields ( geosurf * s )

Debugging, print geosurf fields to stderr.

Todo:: G_debug ?

Parameters

s	pointer to geosurf struct

Definition at line 393 of file gs.c.

References g_surf::cols, g_surf::draw_mode, g_surf::gsurf_id, g_surf::ox, g_surf::oy, g_surf::rows, g_surf::wire_color, g_surf::x_mod, g_surf::x_modw, g_surf::x_trans, g_surf::xmax, g_surf::xmin, g_surf::xres, g_surf::y_mod, g_surf::y_modw, g_surf::y_trans, g_surf::ymax, g_surf::ymin, g_surf::yres, g_surf::z_exag, g_surf::z_trans, g_surf::zmax, and g_surf::zmin.

◆ print_view_fields()

void print_view_fields ( geoview * gv )

Debugging, print geoview fields to stderr.

Todo:: G_debug ?

Parameters

gv	pointer to geoview struct

Definition at line 419 of file gs.c.

References print_frto(), X, Y, and Z.

◆ print_vol_fields()

void print_vol_fields ( geovol * gvl )

Debug volume fields.

Parameters

gvl	pointer to geovol struct

Definition at line 329 of file gvl.c.

References G_debug().

◆ RayCvxPolyhedronInt()

int RayCvxPolyhedronInt	(	Point3	org,
		Point3	dir,
		double	tmax,
		Point4 *	phdrn,
		int	ph_num,
		double *	tresult,
		int *	pn
	)

Ray-Convex Polyhedron Intersection Test.

Originally by Eric Haines, erich.nosp@m.@eye.nosp@m..com

This test checks the ray against each face of a polyhedron, checking whether the set of intersection points found for each ray-plane intersection overlaps the previous intersection results. If there is no overlap (i.e. no line segment along the ray that is inside the polyhedron), then the ray misses and returns 0; else 1 is returned if the ray is entering the polyhedron, -1 if the ray originates inside the polyhedron. If there is an intersection, the distance and the number of the face hit is returned.

Parameters

	org,dir	origin and direction of ray
	tmax	maximum useful distance along ray
	phdrn	list of planes in convex polyhedron
	ph_num	number of planes in convex polyhedron
[out]	tresult	distance of intersection along ray
[out]	pn	number of face hit (0 to ph_num-1)

Returns: FACE code

Definition at line 384 of file gs_query.c.

References BACKFACE, DOT3, FRONTFACE, HUGE_VAL, MISSED, t, and W.

Referenced by gs_setlos_enterdata().

◆ seg_intersect_vregion()

int seg_intersect_vregion	(	geosurf *	gs,
		float *	bgn,
		float *	end
	)

Check if segment intersect vector region.

Clipping performed:

bgn and end are replaced so that both points are within viewregion
if seg intersects

Parameters

	gs	surface (geosurf)
[in,out]	bgn	begin point
[in,out]	end	end point

Returns: 0 if segment doesn't intersect the viewregion, or intersects only at corner; otherwise returns 1

Definition at line 233 of file gsdrape.c.

References GS_P2distance(), in_vregion(), segs_intersect(), VCOL2X, VCOLS, VROW2Y, VROWS, X, and Y.

Referenced by gsdrape_get_allsegments(), and gsdrape_get_segments().

◆ segs_intersect()

int segs_intersect	(	float	x1,
		float	y1,
		float	x2,
		float	y2,
		float	x3,
		float	y3,
		float	x4,
		float	y4,
		float *	x,
		float *	y
	)

Line intersect.

Author: Mukesh Prasad Modified for floating point: Bill Brown

This function computes whether two line segments, respectively joining the input points (x1,y1) – (x2,y2) and the input points (x3,y3) – (x4,y4) intersect. If the lines intersect, the output variables x, y are set to coordinates of the point of intersection.

Parameters

[in]	x1,y1,x2,y2	coordinates of endpoints of one segment
[in]	x3,y3,x4,y4	coordinates of endpoints of other segment
[out]	x,y	coordinates of intersection point

Returns: 0 no intersection; 1 intersect; 2 collinear

Definition at line 1209 of file gsdrape.c.

References COLLINEAR, DO_INTERSECT, DONT_INTERSECT, EQUAL, SAME_SIGNS, and x.

Referenced by get_diag_intersects(), get_horz_intersects(), get_vert_intersects(), gs_los_intersect(), gsd_ortho_wall(), and seg_intersect_vregion().

◆ show_colormode()

void show_colormode ( void )

Print color mode to stderr.

Definition at line 151 of file gsd_prim.c.

References _, and G_message().

Referenced by gsd_surf_map_old().

◆ sub_Vectmem()

void sub_Vectmem ( int minus )

Tracking memory.

Parameters

minus mimus number

Definition at line 298 of file gv3.c.

References G_debug().

Referenced by gv_free_vectmem().

◆ V3Cross()

int V3Cross	(	Point3	a,
		Point3	b,
		Point3	c
	)

Get cross product.

Parameters

[in]	a,b
[out]	c

Returns: cross product c = a cross b

Definition at line 1364 of file gsdrape.c.

References b, X, Y, and Z.

Referenced by P3toPlane().

◆ viewcell_tri_interp()

int viewcell_tri_interp	(	geosurf *	gs,
		typbuff *	buf,
		Point3	pt,
		int	check_mask
	)

ADD.

In gsd_surf, tmesh draws polys like so:

--------------
|           /|
|          / |
|         /  |
|        /   |
|       /    |
|      /     |
|     /      |
|    /       |
|   /        |
|  /         |
| /          |
|/           |
--------------

UNLESS the top right or bottom left point is masked, in which case a single triangle with the opposite diagonal is drawn. This case is not yet handled here & should only occur on edges. pt has X & Y coordinates in it, we interpolate Z here

This could probably be much shorter, but not much faster.

Parameters

	gs
	buf
[in,out]	pt
[in]	check_mask

Returns: 1 if point is in view region; otherwise 0 (if masked)

Definition at line 509 of file gsdrape.c.

References ATT_TOPO, CONST_ATT, DRC2OFF, GET_MAPATT, gs_get_att_src(), gs_point_is_masked(), LERP, MAP_ATT, Point_on_plane(), VCOL2DCOL, VCOL2X, VCOLS, VROW2DROW, VROW2Y, VROWS, VXRES, VYRES, X, X2VCOL, Y, Y2VROW, and Z.

Referenced by _viewcell_tri_interp(), gpd_2dsite(), gs_los_intersect(), gs_los_intersect1(), and interp_first_last().

◆ void_func()

void void_func ( void )

Definition at line 86 of file gs2.c.

Referenced by GS_libinit().

◆ XY_intersect_plane()

int XY_intersect_plane	(	float *	intersect,
		float *	plane
	)

Check for intersection (point and plane)

Ax + By + Cz + D = 0, so z = (Ax + By + D) / -C

User fills in intersect[X] & intersect[Y]

Parameters

[in,out]	intersect	intersect coordinates
[in]	plane	plane definition

Returns: 0 doesn't intersect; 1 intesects

Definition at line 1311 of file gsdrape.c.

References W, X, x, Y, and Z.

Referenced by Point_on_plane().

Functions

Function Documentation

◆ _viewcell_tri_interp()

◆ calc_norm()

◆ correct_twist()

◆ dir_to_slope_aspect()

◆ do_label_display()

◆ free_data_buffs()

◆ get_2key_neighbors()

◆ get_diag_intersects()

◆ get_horz_intersects()

◆ get_key_neighbors()

◆ get_mapatt()

◆ get_txtdescender()

◆ get_txtxoffset()

◆ get_vert_intersects()

◆ GK_add_key()

◆ GK_clear_keys()

◆ gk_copy_key()

◆ GK_delete_key()

◆ GK_do_framestep()

◆ gk_draw_path()

◆ gk_follow_frames()

◆ gk_free_key()

◆ gk_get_mask_sofar()

◆ gk_make_framesfromkeys()

◆ gk_make_linear_framesfromkeys()

◆ GK_move_key()

◆ GK_print_keys()

◆ GK_set_interpmode()

◆ GK_set_numsteps()

◆ GK_set_tension()

◆ GK_show_list()

◆ GK_show_path()

◆ GK_show_site()

◆ GK_show_vect()

◆ GK_show_vol()

◆ GK_showtension_start()

◆ GK_showtension_stop()

◆ GK_update_frames()

◆ GK_update_tension()

◆ gk_viable_keys_for_mask()

◆ gln_num_points()

◆ GP_alldraw_site()

◆ GP_attmode_color()

◆ GP_attmode_none()

◆ GP_delete_site()

◆ gp_delete_site()

◆ GP_draw_site()

◆ gp_free_site()

◆ gp_free_sitemem()

◆ GP_Get_ClientData()

◆ gp_get_last_site()

◆ gp_get_new_site()

◆ gp_get_prev_site()

◆ gp_get_site()

◆ GP_get_site_list()

◆ GP_get_sitename()

◆ GP_get_style()

◆ GP_get_trans()

◆ GP_get_zmode()

◆ gp_init_site()

◆ GP_load_site()

◆ Gp_load_sites()

◆ Gp_load_sites_thematic()

◆ GP_new_site()

◆ GP_num_sites()

◆ gp_num_sites()

◆ GP_select_surf()

◆ GP_Set_ClientData()

◆ Gp_set_color()

◆ gp_set_defaults()

◆ gp_set_drapesurfs()

◆ GP_set_style()

◆ GP_set_style_thematic()

◆ GP_set_trans()

◆ GP_set_zmode()

◆ GP_site_exists()

◆ GP_str_to_marker()

◆ GP_surf_is_selected()