gvl3.c File Reference

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

#include <grass/gis.h>
#include <grass/raster.h>
#include <grass/raster3d.h>
#include <grass/ogsf.h>
#include <grass/glocale.h>

Include dependency graph for gvl3.c:

Go to the source code of this file.

Functions
int	Gvl_load_colors_data (void **color_data, const char *name)
	Load color table.
int	Gvl_unload_colors_data (void *color_data)
	Unload color table.
int	Gvl_get_color_for_value (void *color_data, float *value)
	Get color for value.

Detailed Description

OGSF library - loading 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 (December 2003)

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

Definition in file gvl3.c.

Function Documentation

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_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_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().