Rewrote to contain demo#2 as from the x02c.c example.  Refactored along similar lines & made a bit more flexible.  For now have to use a rather slow way to set up the color map because the faster method crashes (both ways supported through a switch).  Probably just a dumb bug but I'm out of time to work on it..
Rewrote to contain demo#2 as from the x02c.c example.  Refactored along
similar lines & made a bit more flexible.  For now have to use a rather
slow way to set up the color map because the faster method crashes (both
ways supported through a switch).  Probably just a dumb bug but I'm out of
time to work on it..

svn path=/trunk/; revision=6142

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot