gsd_prim.c File Reference

OGSF library - primitive drawing functions (lower level functions) More...

#include <stdlib.h>
#include <string.h>
#include <grass/config.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glx.h>
#include <grass/gis.h>
#include <grass/ogsf.h>
#include <grass/glocale.h>

Include dependency graph for gsd_prim.c:

Go to the source code of this file.

Macros
#define	USE_GL_NORMALIZE
#define	RED_MASK   0x000000FF
#define	GRN_MASK   0x0000FF00
#define	BLU_MASK   0x00FF0000
#define	ALP_MASK   0xFF000000
#define	INT_TO_RED(i, r)   (r = (i & RED_MASK))
#define	INT_TO_GRN(i, g)   (g = (i & GRN_MASK) >> 8)
#define	INT_TO_BLU(i, b)   (b = (i & BLU_MASK) >> 16)
#define	INT_TO_ALP(i, a)   (a = (i & ALP_MASK) >> 24)
#define	MAX_OBJS   64
#define	border   15

Functions
void	gsd_flush (void)
	Mostly for flushing drawing commands across a network.
void	gsd_colormode (int cm)
	Set color mode.
void	show_colormode (void)
	Print color mode to stderr.
void	gsd_circ (float x, float y, float rad)
	ADD.
void	gsd_disc (float x, float y, float z, float rad)
	ADD.
void	gsd_sphere (float *center, float siz)
	ADD.
void	gsd_zwritemask (unsigned long n)
	Write out z-mask.
void	gsd_backface (int n)
	ADD.
void	gsd_linewidth (short n)
	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 shade)
	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 xs, float ys, float zs)
	Multiply the current matrix by a general scaling matrix.
void	gsd_translate (float dx, float dy, float dz)
	Multiply the current matrix by a translation matrix.
void	gsd_getwindow (int *window, int *viewport, double *modelMatrix, double *projMatrix)
	Get viewport.
int	gsd_checkpoint (float pt[4], int window[4], int viewport[4], double modelMatrix[16], double projMatrix[16])
	ADD.
void	gsd_rot (float angle, char axis)
	ADD.
void	gsd_litvert_func (float *norm, unsigned long col, float *pt)
	Set the current normal vector & specify vertex.
void	gsd_litvert_func2 (float *norm, unsigned long col, float *pt)
	ADD.
void	gsd_vert_func (float *pt)
	ADD.
void	gsd_color_func (unsigned int col)
	Set current color.
void	gsd_init_lightmodel (void)
	Initialize model light.
void	gsd_set_material (int set_shin, int set_emis, float sh, float em, int emcolor)
	Set material.
void	gsd_deflight (int num, struct lightdefs *vals)
	Define light.
void	gsd_switchlight (int num, int on)
	Switch light on/off.
int	gsd_getimage (unsigned char **pixbuf, unsigned int *xsize, unsigned int *ysize)
	Get image of current GL screen.
int	gsd_getViewport (GLint tmp[4], GLint num[2])
	Get viewpoint.
int	gsd_writeView (unsigned char **pixbuf, unsigned int xsize, unsigned int ysize)
	Write view.
void	gsd_blend (int yesno)
	Specify pixel arithmetic.
void	gsd_def_clipplane (int num, double *params)
	Define clip plane.
void	gsd_set_clipplane (int num, int able)
	Set clip plane.
void	gsd_finish (void)
	Finish.
void	gsd_viewport (int l, int r, int b, int t)
	Set the viewport.
int	gsd_makelist (void)
	ADD.
void	gsd_bgnlist (int listno, int do_draw)
	ADD.
void	gsd_endlist (void)
	End list.
void	gsd_deletelist (GLuint listno, int range)
	Delete list.
void	gsd_calllist (int listno)
	ADD.
void	gsd_calllists (int listno)
	ADD.

Detailed Description

OGSF library - primitive drawing functions (lower level functions)

GRASS OpenGL gsurf OGSF Library

(C) 1999-2008, 2018 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Bill Brown USACERL (January 1993)

Doxygenized by Martin Landa <landa.martin gmail.com> (May 2008)

Support for framebuffer objects by Huidae Cho <grass4u gmail.com> (July 2018)

Definition in file gsd_prim.c.

Macro Definition Documentation

ALP_MASK

#define ALP_MASK   0xFF000000

Definition at line 51 of file gsd_prim.c.

BLU_MASK

#define BLU_MASK   0x00FF0000

Definition at line 50 of file gsd_prim.c.

border

#define border   15

Definition at line 62 of file gsd_prim.c.

GRN_MASK

#define GRN_MASK   0x0000FF00

Definition at line 49 of file gsd_prim.c.

INT_TO_ALP

#define INT_TO_ALP	(		i,
			a
	)		(a = (i & ALP_MASK) >> 24)

Definition at line 56 of file gsd_prim.c.

INT_TO_BLU

#define INT_TO_BLU	(		i,
			b
	)		(b = (i & BLU_MASK) >> 16)

Definition at line 55 of file gsd_prim.c.

INT_TO_GRN

#define INT_TO_GRN	(		i,
			g
	)		(g = (i & GRN_MASK) >> 8)

Definition at line 54 of file gsd_prim.c.

INT_TO_RED

#define INT_TO_RED	(		i,
			r
	)		(r = (i & RED_MASK))

Definition at line 53 of file gsd_prim.c.

MAX_OBJS

#define MAX_OBJS   64

Definition at line 58 of file gsd_prim.c.

RED_MASK

#define RED_MASK   0x000000FF

Definition at line 48 of file gsd_prim.c.

USE_GL_NORMALIZE

#define USE_GL_NORMALIZE

Definition at line 46 of file gsd_prim.c.

Function Documentation

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_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_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_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_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_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_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_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_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_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_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_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_getViewport()

int gsd_getViewport	(	GLint	tmp[4],
		GLint	num[2]
	)

Get viewpoint.

Parameters

tmp
num

Returns

1

Definition at line 950 of file gsd_prim.c.

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_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_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_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_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_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_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_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_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_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_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_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().

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().