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diff --git a/lib/GD/Graph/FAQ.pod b/lib/GD/Graph/FAQ.pod deleted file mode 100644 index f6ed237..0000000 --- a/lib/GD/Graph/FAQ.pod +++ /dev/null @@ -1,130 +0,0 @@ -=head1 NAME - -GD::Graph::FAQ - Frequently asked questions - -=head1 DESCRIPTION - -=head2 I get errors like "Can't call method METHOD on an undefined value". What gives? - -You probably had an error somewhere, most likely in the plot() method, -and you didn't check for it. See the section on Error Handling in the -documentation for L<GD::Graph> to find out how to deal with this sort -of thing, and how to get more information about what the error was. - -=head2 I am drawing a bar chart, and the chart area is a lot smaller than the image. What is going on? - -As of version 1.30, GD::Graph automatically corrects the width of the -plotting area of a chart if it needs to draw bars (i.e. for bars and -some mixed charts). This is necessary, because rounding errors cause -irregular gaps between or overlaps of bars if the bar is not an exact -integer number of pixels wide. - -If you want the old behaviour back, set the correct_with attribute to a -false value. - - -=head2 I have my data in some format that doesn't look at all like the array that I am supposed to give to GD::Graph's plot method. Do I really need to mess around with array references? - -Not necessarily. Check out the GD::Graph::Data class. - - -=head2 How do I stop those pesky accents appearing around bars or inside area charts? - -You can set the C<accent_treshold> option to a large enough value -(larger than your chart). Alternatively, you may like it better to set -the C<borderclrs> attribute to be the same as the dclrs one. - -I'll probably include an option in a future version that gives better -control over this. - - -=head2 Where is the ActiveState ppm of GD::Graph? - -Ask them. I have asked them, but didn't get an answer. I don't know what -to do to get it included in their set of ppms, and I really do not have -the time to keep asking them. - -I believe that GD::graph has finally made it into ActiveState's ppm -archive. However, I am going to leave this question here in case they -get behind again. - - -=head2 Do you have some example code for me? - -The distribution has a large set of examples in it. If you don't have -the original distribution, please get it from CPAN (http://www.cpan.org/ -or some local mirror). - - -=head2 Will you support X or Y? - -If you send me a patch that (in a decent manner) adds the functionality -to the latest version, I may very well add it for the next release. If -you don't send me a patch, but just a question, you will have to be -patient. - -=head2 Why does export_format give me a weird string, instead of just 'png' or 'gif'? - -As of version 1.31, export_format in a list context returns all formats -that GD can export. If you are only interested in the answer 'gif' or -'png', make sure that you call it in a scalar context. - - $export_format = GD::Graph->export_format; - $export_format = $graph->export_format; - print "Export format is ", scalar $graph->export_format, "\n"; - print "Export format is " . $graph->export_format . "\n"; - @export_formats = $graph->export_format; - - -=head2 TrueType fonts don't work when I use GD::Graph from a CGI program. - -When your programs run as CGI, they typically do not have the same -environment as when you use them from the command line. The Perl FAQ, -section 9, has some information on this. It is also not guaranteed that -your script runs from the directory that it is in. It is probably better -to include something like: - - use GD::Text; - GD::Text->font_path("/path/to/my/font_dir"); - -See the GD::Text documentation for more information about font paths. - -=head2 I'm trying to use GD's builtin fonts, but it's not working. - -Most likely, you are using the font short name, like gdGiantFont or -gdMediumBoldFont, and you have not put a C<use GD> in your program. -This is needed, because these short names need to be exported into -your name space by the GD library: - - use GD; - # ... - $graph->set_x_axis_font(gdMediumBoldFont); - -If you don't want to include the GD library, you can use the -longer alternative names (which is what I'd recommend anyway): - - $graph1->set_x_axis_font(GD::Font->MediumBold); - -If you C<use strict> then you will actually get an error message if -you try to use the short names without including the GD module. - -Also see the L<GD::Text> documentation for this information. - -=head2 When I have many data sets, some end up having the same colour. - -The default number of colours for data sets is seven, so if you use -more than seven data sets, those colours will be re-used for the -higher data sets. - -This is described in the entry for the C<dclrs> attribute in the -L<GD::Graph> documentation. - -=head1 AUTHOR - -Martien Verbruggen E<lt>mgjv@tradingpost.com.auE<gt> - -(c) Martien Verbruggen. - -All rights reserved. This package is free software; you can redistribute -it and/or modify it under the same terms as Perl itself. - |
