#include <stdlib.h>
#include <string.h>
#include <grass/gis.h>
#include <grass/ogsf_proto.h>
#include <grass/gstypes.h>
#include "gsget.h"
#include "math.h"
#include "rowcol.h"

Include dependency graph for gsd_objs.c:

Macros
#define	ONORM .57445626

#define	UP_NORM Octo[2]

#define	DOWN_NORM Octo[5]

#define	ORIGIN origin

Functions
void	gsd_plus (float *center, int colr, float siz)
	ADD. More...

void	gsd_line_onsurf (geosurf gs, float v1, float *v2)
	Line on surface, fix z-values. More...

int	gsd_nline_onsurf (geosurf gs, float v1, float v2, float pt, int n)
	Multiline on surface, fix z-values. More...

void	gsd_x (geosurf gs, float center, int colr, float siz)
	ADD. More...

void	gsd_diamond (float *center, unsigned long colr, float siz)
	Draw diamond symbol. More...

void	gsd_cube (float *center, unsigned long colr, float siz)
	Draw cube. More...

void	gsd_draw_box (float *center, unsigned long colr, float siz)
	Draw box. More...

void	gsd_drawsphere (float *center, unsigned long colr, float siz)
	Draw sphere. More...

void	gsd_diamond_lines (void)
	Draw diamond lines. More...

void	gsd_draw_asterisk (float *center, unsigned long colr, float siz)
	Draw asterisk. More...

void	gsd_draw_gyro (float *center, unsigned long colr, float siz)
	Draw gyro. More...

void	gsd_3dcursor (float *pt)
	Draw 3d cursor. More...

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

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. More...

int	gsd_arrow (float center, unsigned long colr, float siz, float dir, float sz, geosurf *onsurf)
	ADD. More...

int	gsd_arrow_onsurf (float base, float tip, unsigned long colr, int wid, geosurf *gs)
	Draw north arrow on surface. More...

void	gsd_3darrow (float center, unsigned long colr, float siz1, float siz2, float dir, float sz)
	Draw 3d north arrow. More...

int	gsd_scalebar (float *pos2, float len, GLuint fontbase, unsigned long bar_clr, unsigned long text_clr)
	Draw Scalebar takes OpenGL coords and size. More...

int	gsd_scalebar_v2 (float *pos, float len, GLuint fontbase, unsigned long bar_clr, unsigned long text_clr)
	Draw Scalebar (as lines) More...

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

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

void	gsd_box (float center, int colr, float siz)
	Draw box. More...

Variables
float	Octo [6][3]
	vertices for octohedron More...

float	OctoN [8][3]
	normals for flat-shaded octohedron More...

float	CubeNormals [3][3]

float	CubeVertices [8][3]

float	origin [3] = { 0.0, 0.0, 0.0 }

float	ogverts [8][3]
	vertices & normals for octagon in xy plane More...

float	ogvertsplus [8][3]
	vertices for octagon in xy plane, z=1 More...

float	Pi

float	Box [8][3]
	Vertices for box. More...

float	BoxN [6][3]

Macro Definition Documentation

#define DOWN_NORM Octo[5]

Definition at line 92 of file gsd_objs.c.

Referenced by gsd_arrow_onsurf(), and primitive_cylinder().

#define ONORM .57445626

Definition at line 44 of file gsd_objs.c.

#define ORIGIN origin

Definition at line 93 of file gsd_objs.c.

Referenced by gsd_arrow(), and primitive_cylinder().

#define UP_NORM Octo[2]

Definition at line 91 of file gsd_objs.c.

Referenced by gsd_arrow(), gsd_arrow_onsurf(), primitive_cone(), and primitive_cylinder().

Function Documentation

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

ADD.

Parameters

dir
slope
ascpect
degrees

Definition at line 756 of file gsd_objs.c.

References Pi, X, and Y.

Referenced by gsd_3darrow(), and gsd_arrow().

void gsd_3darrow	(	float *	center,
		unsigned long	colr,
		float	siz1,
		float	siz2,
		float *	dir,
		float	sz
	)

Draw 3d north arrow.

Parameters

center	center point
colr	color value
siz1	height
siz2	is diameter
dir
sz

Definition at line 1081 of file gsd_objs.c.

References dir_to_slope_aspect(), first, 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, and Y.

Referenced by gsd_norm_arrows().

void gsd_3dcursor ( float * pt )

Draw 3d cursor.

Parameters

pt point

Definition at line 712 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), X, and Y.

int gsd_arrow	(	float *	center,
		unsigned long	colr,
		float	siz,
		float *	dir,
		float	sz,
		geosurf *	onsurf
	)

ADD.

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	center point
colr	color value
siz	size value
dir
sz
onsurf	surface (geosurf)

Returns: 1 no surface given; 0 on surface

Definition at line 922 of file gsd_objs.c.

References dir_to_slope_aspect(), first, 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, and Y.

Referenced by gsd_norm_arrows(), and gsd_wire_arrows().

int gsd_arrow_onsurf	(	float *	base,
		float *	tip,
		unsigned long	colr,
		int	wid,
		geosurf *	gs
	)

Draw north arrow on surface.

Parameters

base
tip
colr
wid
gs	surface (geosurf)

Returns: 0

Definition at line 994 of file gsd_objs.c.

References DOWN_NORM, first, 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, and Y.

Referenced by gsd_arrow().

void gsd_box	(	float *	center,
		int	colr,
		float *	siz
	)

Draw box.

Warning siz is an array (we need it for scale only Z in histograms)

Parameters

center	center point
colr	color value
siz	size value

Definition at line 1440 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, and Y.

Referenced by gpd_obj().

void gsd_cube	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw cube.

Added by Hamish Bowman Nov 2005

Parameters

center	center point
colr	color value
siz	size value

Definition at line 430 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, and Y.

Referenced by gpd_obj().

void gsd_diamond	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw diamond symbol.

Parameters

center	center point
colr	color value
size	size value

Definition at line 328 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, and Y.

Referenced by gpd_obj().

void gsd_diamond_lines ( void )

Draw diamond lines.

Definition at line 578 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), and Octo.

Referenced by gsd_draw_asterisk().

void gsd_draw_asterisk	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw asterisk.

Parameters

center	center point
colr	color value
siz	size value

Definition at line 605 of file gsd_objs.c.

References gsd_color_func(), gsd_diamond_lines(), gsd_popmatrix(), gsd_pushmatrix(), gsd_rot(), gsd_scale(), gsd_translate(), X, and Y.

Referenced by gpd_obj().

void gsd_draw_box	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw box.

Added by Hamish Bowman Nov 2005

Parameters

center	center point
colr	color value
siz	size value

Definition at line 507 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, and Y.

Referenced by gpd_obj().

void gsd_draw_gyro	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw gyro.

Parameters

center	center point
colr	color value
siz	size value

Definition at line 660 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, and Y.

Referenced by gpd_obj().

void gsd_drawsphere	(	float *	center,
		unsigned long	colr,
		float	siz
	)

Draw sphere.

Parameters

center	center point
colr	color value
size	size value

Definition at line 566 of file gsd_objs.c.

References gsd_color_func(), and gsd_sphere().

Referenced by GS_draw_lighting_model(), and GS_draw_lighting_model1().

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
v2	second point

Definition at line 190 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), and gsdrape_get_segments().

Referenced by GS_draw_line_onsurf(), gsd_arrow_onsurf(), and gsd_x().

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	first point
v2	second point
pt
n	number of segments
number	of vertices

Definition at line 236 of file gsd_objs.c.

References gsd_bgnline(), gsd_endline(), gsd_vert_func(), gsdrape_get_segments(), X, and Y.

Referenced by GS_draw_nline_onsurf().

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
len
fontbase
arw_clr	north arrow color
text_clr	text color

Returns: 1

Definition at line 826 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_get_txtheight(), gsd_get_txtwidth(), gsd_popmatrix(), gsd_pushmatrix(), Ntop, X, and Y.

Referenced by Nviz_draw_all(), and Nviz_draw_arrow().

void gsd_plus	(	float *	center,
		int	colr,
		float	siz
	)

ADD.

Parameters

center	center point
colr	color value
siz	size value

Definition at line 153 of file gsd_objs.c.

References gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_vert_func(), X, and Y.

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
fontbase	font-base
bar_clr	barscale color
text_clr	text color

Returns: 1

Definition at line 1160 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_get_txtheight(), gsd_get_txtwidth(), gsd_popmatrix(), gsd_pushmatrix(), Ntop, sprintf(), TRUE, X, and Y.

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

pos2	scalebar position
fontbase	font-base (unused)
bar_clr	barscale color
text_clr	text color (unused)

Returns: 1

Definition at line 1248 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_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_vert_func(), Ntop, X, and Y.

Referenced by Nviz_draw_all(), and Nviz_draw_scalebar().

void gsd_x	(	geosurf *	gs,
		float *	center,
		int	colr,
		float	siz
	)

ADD.

Note gs: NULL if flat

Parameters

gs	surface (geosurf)
center
colr	color value
siz	size value

Definition at line 279 of file gsd_objs.c.

References gsd_bgnline(), gsd_color_func(), gsd_endline(), gsd_line_onsurf(), gsd_vert_func(), X, and Y.

Referenced by gk_draw_path(), and gpd_obj().

void primitive_cone ( unsigned long col )

Primitives only called after transforms.

Center is actually center at base of 8 sided cone

Parameters

col	color value

Definition at line 1311 of file gsd_objs.c.

References first, gsd_bgntfan(), gsd_endtfan(), gsd_litvert_func2(), ogverts, UP_NORM, X, and Y.

Referenced by gsd_3darrow().

void primitive_cylinder	(	unsigned long	col,
		int	caps
	)

Primitives only called after transforms.

Center is actually center at base of 8 sided cylinder

Parameters

col	color value
caps

Definition at line 1348 of file gsd_objs.c.

References DOWN_NORM, first, gsd_bgnqstrip(), gsd_bgntfan(), gsd_endqstrip(), gsd_endtfan(), gsd_litvert_func2(), ogverts, ogvertsplus, ORIGIN, and UP_NORM.

Referenced by gsd_3darrow().

Variable Documentation

float Box[8][3]

Initial value:

=
    { {1.0, 1.0, -1.0}, {-1.0, 1.0, -1.0}, {-1.0, 1.0, 1.0}, {1.0, 1.0, 1.0},
{1.0, -1.0, -1.0}, {-1.0, -1.0, -1.0}, {-1.0, -1.0, 1.0}, {1.0, -1.0, 1.0}
}

Vertices for box.

Definition at line 1420 of file gsd_objs.c.

Referenced by gsd_box().

float BoxN[6][3]

Initial value:

=
    { {0, 0, -ONORM}, {0, 0, ONORM}, {0, ONORM, 0}, {0, -ONORM, 0}, {ONORM, 0,
                                                                     0},
{-ONORM, 0, 0}
}

Definition at line 1425 of file gsd_objs.c.

Referenced by gsd_box().

float CubeNormals[3][3]

Initial value:

= {
    {0, -ONORM, 0},
    {0, 0, ONORM},
    {ONORM, 0, 0}
}

???? not sure if any of these are needed for correct lighting. float CubeNormals[6][3] = { {ONORM, 0, 0}, {-ONORM, 0, 0}, {0, ONORM, 0}, {0, -ONORM, 0}, {0, 0, ONORM}, {0, 0, -ONORM} };

Definition at line 72 of file gsd_objs.c.

Referenced by gsd_cube().

float CubeVertices[8][3]

Initial value:

= {
    {-1.0, -1.0, -1.0},
    {1.0, -1.0, -1.0},
    {1.0, 1.0, -1.0},
    {-1.0, 1.0, -1.0},
    {-1.0, -1.0, 1.0},
    {1.0, -1.0, 1.0},
    {1.0, 1.0, 1.0},
    {-1.0, 1.0, 1.0}
}

Definition at line 78 of file gsd_objs.c.

Referenced by gsd_cube(), and gsd_draw_box().

float Octo[6][3]

Initial value:

= {
    {1.0, 0.0, 0.0},
    {0.0, 1.0, 0.0},
    {0.0, 0.0, 1.0},
    {-1.0, 0.0, 0.0},
    {0.0, -1.0, 0.0},
    {0.0, 0.0, -1.0}
}

vertices for octohedron

Definition at line 35 of file gsd_objs.c.

Referenced by gsd_diamond(), gsd_diamond_lines(), and gsd_draw_gyro().

float OctoN[8][3]

Initial value:

= {
    {ONORM, ONORM, ONORM},
    {-ONORM, ONORM, ONORM},
    {ONORM, -ONORM, ONORM},
    {-ONORM, -ONORM, ONORM},
    {ONORM, ONORM, -ONORM},
    {-ONORM, ONORM, -ONORM},
    {ONORM, -ONORM, -ONORM},
    {-ONORM, -ONORM, -ONORM},
}

normals for flat-shaded octohedron

Definition at line 49 of file gsd_objs.c.

Referenced by gsd_diamond().

float ogverts[8][3]

vertices & normals for octagon in xy plane

Definition at line 98 of file gsd_objs.c.

Referenced by primitive_cone(), and primitive_cylinder().

float ogvertsplus[8][3]

vertices for octagon in xy plane, z=1

Definition at line 103 of file gsd_objs.c.

Referenced by primitive_cylinder().

float origin[3] = { 0.0, 0.0, 0.0 }

Definition at line 89 of file gsd_objs.c.

float Pi

Definition at line 105 of file gsd_objs.c.

Referenced by dir_to_slope_aspect().

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation