NAME

GD::Graph::Hooks - Kludgey way to add callback hooks to GD::Graph

SYNOPSIS

use GD::Graph::Hooks;
use GD::Graph;        # the load order does not matter

my $graph = GD::Graph::lines->new(500,500);
$graph->add_hook( GD::Graph::Hooks::PRE_DATA => sub { ... stuff here ... } );
$graph->plot([[1..3], [1..3]]);

Possible hooks follow. This documentation is sparse because you either got what you needed above already or you'll need to go source diving anyway. The hooks appear as pairs because they are just different names for the same event.

POST_INIT / PRE_TEXT

POST_TEXT / PRE_AXIS

POST_AXIS / PRE_DATA

POST_DATA / PRE_VALUES

POST_VALUES / PRE_LEGEND

POST_LEGEND / PRE_RETURN

AUTHOR

Paul Miller <jettero@cpan.org>

I am using this software in my own projects... If you find bugs, please please please let me know. There is a mailing list with very light traffic that you might want to join: http://groups.google.com/group/stockmonkey/.

COPYRIGHT

Copyright © 2013 Paul Miller

LICENSE

This is released under the Artistic License. See perlartistic.

SEE ALSO

perl(1), GD::Graph