color_range.c File Reference

Raster Library - Color range functions. More...

#include <math.h>
#include <grass/gis.h>
#include <grass/raster.h>

Include dependency graph for color_range.c:

Go to the source code of this file.

Functions
void	Rast_set_c_color_range (CELL min, CELL max, struct Colors *colors)
	Set color range (CELL version)
void	Rast_set_d_color_range (DCELL min, DCELL max, struct Colors *colors)
	Set color range (DCELL version)
void	Rast_get_c_color_range (CELL *min, CELL *max, const struct Colors *colors)
	Get color range values (CELL)
void	Rast_get_d_color_range (DCELL *min, DCELL *max, const struct Colors *colors)
	Get color range values (DCELL)

Detailed Description

Raster Library - Color range functions.

(C) 2001-2009 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

Original author CERL

Definition in file color_range.c.

Function Documentation

Rast_get_c_color_range()

void Rast_get_c_color_range	(	CELL *	min,
		CELL *	max,
		const struct Colors *	colors
	)

Get color range values (CELL)

Returns min and max category in the range or huge numbers if the color table is defined on floating cell values and not on categories.

Parameters

[out]	min,max	minimum and maximum value
	colors	pointer to Colors structure which holds color info

Definition at line 64 of file color_range.c.

References Colors::cmax, Colors::cmin, Colors::is_float, max, and min.

Referenced by Gs_build_256lookup(), Rast_print_colors(), and Rast_print_json_colors().

Rast_get_d_color_range()

void Rast_get_d_color_range	(	DCELL *	min,
		DCELL *	max,
		const struct Colors *	colors
	)

Get color range values (DCELL)

Returns min and max category in the range or huge numbers if the color table is defined on floating cell values and not on categories.

Parameters

[out]	min,max	minimum and maximum value
	colors	pointer to Colors structure which holds color info

Definition at line 86 of file color_range.c.

References Colors::cmax, Colors::cmin, max, and min.

Referenced by Rast_abs_log_colors(), Rast_histogram_eq_colors(), Rast_histogram_eq_fp_colors(), and Rast_log_colors().

Rast_set_c_color_range()

void Rast_set_c_color_range	(	CELL	min,
		CELL	max,
		struct Colors *	colors
	)

Set color range (CELL version)

Parameters

min,max	minimum and maximum value
colors	pointer to Colors structure which holds color info

Definition at line 24 of file color_range.c.

References Colors::cmax, Colors::cmin, max, and min.

Referenced by Rast_make_random_colors().

Rast_set_d_color_range()

void Rast_set_d_color_range	(	DCELL	min,
		DCELL	max,
		struct Colors *	colors
	)

Set color range (DCELL version)

Parameters

min,max	minimum and maximum value
colors	pointer to Colors structure which holds color info

Definition at line 42 of file color_range.c.

References Colors::cmax, Colors::cmin, max, and min.