Chart::Plot modules on a sun machine

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Dear monks, I am trying to use the Chart::plot module on a sun machine to get images for web-sites on the fly.

My old code for a linux machine is not working and I wondered if anyone could point out why?

I have narrowed the problem down to this bit here:


    # draw the rest of the chart, and print it 
    open (OUT,">plot.gif"); 
    binmode OUT; 
    print OUT $img->draw(); 
    close OUT;
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Re: Chart::Plot modules on a sun machine by wazoox (Prior) on Jul 27, 2005 at 11:36 UTC
Always check and report the result of a system action like "open", etc. Always write something like : `open(OUT, ">plot.gif") or die "can't open! $!";` [download] or if you want your script to go on : `open(OUT, ">plot.gif") or warn "can't open! $!";` [download] Update your code this way and see if there's an error message there that would enlighten you (hint: there's almost certainly one).	[reply] [d/l] [select]
Re: Chart::Plot modules on a sun machine by davorg (Chancellor) on Jul 27, 2005 at 11:36 UTC
Chart::Plot seems to be a wrapper around the GD module. Have you installed GD (and the underlying libgd) correctly? Does GD pass all of its tests? As an aside, Chart::Plot seems to be a rather old an unmaintained module. Have you considered something a little more recent like GD::Graph? -- <http://www.dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]