gvld.c File Reference

OGSF library - loading and manipulating volumes (lower level functions) More...

#include <math.h>
#include <grass/gis.h>
#include <grass/ogsf.h>
#include "mc33_table.h"

Include dependency graph for gvld.c:

Go to the source code of this file.

Macros
#define	READ()   gvl_read_char(pos[i]++, gvl->isosurf[i]->data)
#define	DISTANCE_2(x1, y1, x2, y2)    sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2))

Functions
int	gvld_vol (geovol *gvl)
	Draw volume set (slices and isosurfaces) More...
int	gvld_wire_vol (geovol *gvl)
	Draw volume in wire mode (bounding box) More...
int	gvld_isosurf (geovol *gvl)
	Draw volume isosurfaces. More...
int	gvld_wire_isosurf (geovol *gvl UNUSED)
	Draw volume isosurface in draw mode. More...
int	gvld_slices (geovol *gvl)
	Draw slices. More...
int	gvld_slice (geovol *gvl, int ndx)
	Draw slice. More...
int	gvld_wire_slices (geovol *gvl)
	Draw wire slices. More...
int	gvld_wind3_box (geovol *gvl)
	Draw volume bounding box. More...

Detailed Description

OGSF library - loading and manipulating volumes (lower level functions)

GRASS OpenGL gsurf OGSF Library

(C) 1999-2008 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

Tomas Paudits (February 2004)

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

Definition in file gvld.c.

Macro Definition Documentation

DISTANCE_2

#define DISTANCE_2	(		x1,
			y1,
			x2,
			y2
	)		sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2))

Definition at line 420 of file gvld.c.

READ

#define READ

(

)

gvl_read_char(pos[i]++, gvl->isosurf[i]->data)

Definition at line 28 of file gvld.c.

Function Documentation

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 b, g, g_vol::n_isosurfs, r, and x.

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 487 of file gvld.c.

gvld_slices()

int gvld_slices

(

geovol *

gvl

)

Draw slices.

Parameters

gvl	pointer to geovol struct

Returns

0

Definition at line 430 of file gvld.c.

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(), gvld_slices(), and g_vol::gvol_id.

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 774 of file gvld.c.

References CM_COLOR, g_vol::cols, g_vol::depths, 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(), g_vol::gvol_id, g_vol::rows, X, g_vol::x_trans, g_vol::xres, Y, g_vol::y_trans, g_vol::yres, Z, g_vol::z_trans, and g_vol::zres.

Referenced by GVL_draw_vol(), and gvld_wire_vol().

gvld_wire_isosurf()

int gvld_wire_isosurf

(

geovol *gvl

UNUSED

)

Draw volume isosurface in draw mode.

Parameters

gvl	pointer to geovol struct [unused]

Returns

0

Definition at line 410 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 665 of file gvld.c.

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(), gvld_wire_slices(), and g_vol::gvol_id.

Referenced by GVL_draw_wire().