grass  7.8.6
About: GRASS (Geographic Resources Analysis Support System) is a raster- and vector-based GIS, image processing system, graphics production system and spatial modeling system.
  Fossies Dox: grass-7.8.6.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

named_colr.c
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1#include <grass/gis.h>
2#include <string.h>
3#include <stdio.h>
4
5static struct
6{
7 const char *name;
8 float r, g, b;
9} colors[] = {
10 {"white", 1.00, 1.00, 1.00},
11 {"black", 0.00, 0.00, 0.00},
12 {"red", 1.00, 0.00, 0.00},
13 {"green", 0.00, 1.00, 0.00},
14 {"blue", 0.00, 0.00, 1.00},
15 {"yellow", 1.00, 1.00, 0.00},
16 {"magenta",1.00, 0.00, 1.00},
17 {"cyan", 0.00, 1.00, 1.00},
18 {"aqua", 0.00, 0.75, 0.75},
19 {"grey", 0.75, 0.75, 0.75},
20 {"gray", 0.75, 0.75, 0.75},
21 {"orange", 1.00, 0.50, 0.00},
22 {"brown", 0.75, 0.50, 0.25},
23 {"purple", 0.50, 0.00, 1.00},
24 {"violet", 0.50, 0.00, 1.00},
25 {"indigo", 0.00, 0.50, 1.00},
26 {"", 0.00, 0.00, 0.00} /* do not modify this line */
27};
28
29int G_color_values(const char *name, float *r, float *g, float *b)
30{
31 int i;
32
33 *r = *g = *b = 0.0;
34 for (i = 0; colors[i].name[0]; i++)
35 if (strcmp(name, colors[i].name) == 0) {
36 *r = colors[i].r;
37 *g = colors[i].g;
38 *b = colors[i].b;
39 return 1;
40 }
41 return -1;
42}
43
44const char *G_color_name(int n)
45{
46 int i;
47
48 if (n >= 0)
49 for (i = 0; colors[i].name[0]; i++)
50 if (i == n)
51 return colors[i].name;
52 return NULL;
53}
#define NULL
Definition: ccmath.h:32
int G_color_values(const char *name, float *r, float *g, float *b)
Definition: named_colr.c:29
float r
Definition: named_colr.c:8
float b
Definition: named_colr.c:8
float g
Definition: named_colr.c:8
const char * name
Definition: named_colr.c:7
static struct @16 colors[]
const char * G_color_name(int n)
Definition: named_colr.c:44