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<H2><A NAME="SECTION00533000000000000000"> </A><A NAME="1900"> </A>
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Setting Up a User Defined Colormap
</H2>
DsTool has a default colormap which it will use if the user does not
provide one.
To provide a colormap, the user must define it in a file
named ``rgb_color.txt''. DsTool will check for this file first
in the directory specified by the UNIX environmental variable MY_DSTOOL.
If this fails, DsTool tries in the DSTOOL
directory, and finally in the current working directory. If the file
is not found in any of these places, the default colormap will be used.
An example colormap looks like:
<PRE>
6
255 0 0
0 255 0
0 0 255
238 130 238
255 165 0
190 190 190
</PRE>
The first line gives the number of entries. This number must be correct.
The next lines give the colors of the colormap, by specifying for each color
an RGB triple. That is, each line consists of three integers between 0 and
255, which give the red, green, and blue components of the color.
The file must not have any extraneous information such as comments, though
it can have extra white space.
It is recommended that you use a colormap with at least six entries
in it. This will ensure that all bifurcation phenomena that DsTool can detect
will use colors different from the system colors.
A colormap with less than four entries will not load, and DsTool
will use the default colormap.
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<ADDRESS>
<I>John Lapeyre</I>
<BR><I>1998-09-04</I>
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