What kinds of graphs? GD::Graph is for line/bar/pie type charts.
For those kinds of charts, you may want to look at Chart::Graph::Gnuplot, or just drive gnuplot manually like I did here... My script used the default X11 output, but gnuplot will do png or postscript, I believe.
If it's "nodes & lines" graphs, GraphViz may be more what you need.
I'm not dissing GD::Graph; I've never used it, so I'm just suggesting alternatives I have used.
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