Chart::Gnuplot png format

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

Replies are listed 'Best First'.
Re: Chart::Gnuplot png format by keszler (Priest) on Sep 12, 2011 at 11:04 UTC
According to Chart::Gnuplot: If the filename has no extension, postscipt will be used. Examine your `$chart->output('file.png');` line; it's not working.	[reply] [d/l]
Re: Chart::Gnuplot png format by roboticus (Chancellor) on Sep 12, 2011 at 13:52 UTC
hmadhi: While you've installed ImageMagick, is Chart::Gnuplot finding ImageMagick properly? Are you checking for errors? Do any error messages involve `convert`? ...roboticus When your only tool is a hammer, all problems look like your thumb.	[reply] [d/l]
Re^2: Chart::Gnuplot png format by Anonymous Monk on Sep 13, 2011 at 13:17 UTC
Hi No error messages. convert is installed in /usr/bin/	[reply]
Re: Chart::Gnuplot png format by ambrus (Abbot) on Sep 12, 2011 at 14:53 UTC
See also Re: Draw chart for a complete code example generating a PNG image output with gnuplot.	[reply]
Re: Chart::Gnuplot png format by ww (Archbishop) on Sep 12, 2011 at 10:12 UTC
My idea is that it would be a lot easier to help you if you posted your corde.	[reply]
Re^2: Chart::Gnuplot png format by hmadhi (Acolyte) on Sep 12, 2011 at 11:28 UTC
Code is as follows: `my $chart = Chart::Gnuplot->new(output =>"file.png", gnuplot => /usr/bin/gnuplot", ) $chart->plot2d($dataSet0, $dataSet1);` [download]	[reply] [d/l]
Re: Chart::Gnuplot png format by hmadhi (Acolyte) on Sep 14, 2011 at 06:43 UTC
I have found the "problem". I have been plotting datasets that do not contain data. eg `$chart->plot2d($dataSet0, $dataSet1, $dataSet2;)` [download] where dataSet0 returns a set of null values. In the previous version of Chart::Gnuplot this was not an issue and I did not have this problem. Such datasets were ignored and the conversion takes place correct. Remember, I am getting a ps file being generated, only the convert is not working. If I do a manual convert the graph is plotted correct.	[reply] [d/l]


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