makepattern − make GMT color pattern from b/w pattern or icon
makepattern 1bit.ras | iconfile −Cfr/g/b −Cbr/g/b
makepattern
reads either a Sun 1-bit rasterfile OR a Sun icon file. It
then accepts color choices for the foreground and background
pixels and colorizes the pattern, writing it as a 8-bit Sun
rasterfile on stdout. These patterns may then be used in
GMT (3.1 or later) −Gp settings or by
psimage.
1bit.ras | iconfile
Either a 1-bit Sun rasterfile (standard format, no RLE) or a Sun icon file (as used in GMT 3.0).
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−Cf |
Sets the color for the foreground pixels (the ones) [black]. |
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−Cb |
Sets the color for the background pixels (the zeros) [white]. |
Since binary redirection under WIN32 does not work, you must specify the output file with −Gnewfile.ras. This option is only available under WIN32.
To create a colorized red/blue 8-bit Sun rasterfile pattern from the old 3.0-style iconpattern stored in file custom.icon, run
makepattern custom.icon −Cf red −Cb blue > custom.ras
To create a green/blue 8-bit Sun rasterfile pattern from a 1-bit Sun raster called bits.ras, run
makepattern bits.ras −Cf green −Cb blue > colorbits.ras