* Change so that gives identical file device result to corresponding C example.
* Change so that gives identical file device result to corresponding C example.

* Stylistic changes: comments, do loops, indentation, plcol ==> plcol0.

svn path=/trunk/; revision=5019

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