5 Graph Description Language (GDL) - Absint

5.10 Colors
aiSee has a color map of 256 colors of which 254 can be used. The first 32 colors (index 0 – 31) of
the color map are the default colors. These colors can be specified by name, all other colors being
specified by their color map index number. The color map is changed by specifying a sequence of
color entry attributes. For instance,
colorentry 32: 210 218 255 // alice blue
colorentry 33: 205 92 92 // indian red
colorentry 34: 46 139 87 // sea green
introduce the colors “alice blue”, “indian red” and “sea green” with color index 32, 33 and 34. If
blue, a default color, is to be used specification can be done via color: blue or color: 1. In
order to use sea green as a node color, color: seagreen cannot be specified since “seagreen”
is unknown to aiSee as a name. Its index number color: 34 has to be specified instead.
The default colors can be overwritten, however this is even more tricky. Specifying
colorentry 1: 210 218 255 // alice blue
colorentry 2: 205 92 92 // indian red
colorentry 3: 46 139 87 // sea green
causes the default colors blue, red and green to be overwritten. Now if color: blue is specified,
the color alice blue appears.
Table 1 shows the default color map.
No. Color name RGB triple No. Color name RGB triple
0 white 255 255 255 16 lightblue 128 128 255
1 blue 0 0 255 17 lightred 255 128 128
2 red 255 0 0 18 lightgreen 128 255 128
3 green 0 255 0 19 lightyellow 255 255 128
4 yellow 255 255 0 20 lightmagenta 255 128 255
5 magenta 255 0 255 21 lightcyan 128 255 255
6 cyan 0 255 255 22 lilac 238 130 238
7 darkgrey 85 85 85 23 turquoise 64 224 208
8 darkblue 0 0 128 24 aquamarine 127 255 212
9 darkred 128 0 0 25 khaki 240 230 140
10 darkgreen 0 128 0 26 purple 160 32 240
11 darkyellow 128 128 0 27 yellowgreen 154 205 50
12 darkmagenta 128 0 128 28 pink 255 192 203
13 darkcyan 0 128 128 29 orange 255 165 0
14 gold 255 215 0 30 orchid 218 112 214
15 lightgrey 170 170 170 31 black 0 0 0
Table 1: Color Codes of the Default Color Map
Table 2 lists the color attributes available in GDL.
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