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lib/Bio/Graphics/Panel.pm  view on Meta::CPAN

  -link => sub {
         my ($feature,$panel) = @_;
         my $type = $feature->primary_tag;
         my $name = $feature->display_name;
         if ($primary_tag eq 'clone') {
            return "http://www.google.com/search?q=$name";
         } else {
            return "http://www.yahoo.com/search?p=$name";
         }

The -link argument cascades. image_and_map() will first look for a
-link option in the track configuration, and if that's not found, it
will look in the Panel configuration (created during
Bio::Graphics::Panel-E<gt>new). If no -link configuration option is found
in either location, then image_and_map() will use the value of -link
passed in its argument list, if any.

The -title and -target options behave in a similar manner to -link.
-title is used to assign each feature "title" and "alt" attributes.
The "title" attribute is used by many browsers to create a popup hints
box when the mouse hovers over the feature's glyph for a preset length