I tried this on Windows 7 and I get an Invalid Parameter - 90. At first it seemed to be related to how the module calls gnuplot according to this thread. Then I found this article that explains the true problem is that Chart::Gnuplot is attempting to call ImageMagick's convert executable. On Windows convert is a utility that converts a volume from FAT32 to NTFS. To get Chart::Gnuplot working you need to install ImageMagick and Ghostscript. I haven't tried it yet but it looks promising.

In reply to Re^4: 2d contour plot using Chart::Gnuplot by Lotus1
in thread 2d contour plot using Chart::Gnuplot by Ppeoc

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