Bio::Graphics(3)

NAME
Bio::Graphics - Generate GD images of Bio::Seq objects

SYNOPSIS
 # This script generates a PNG picture of a 10K region containing a
 # set of red features and a set of blue features. Call it like this:
 #         red_and_blue.pl > redblue.png
 # you can now view the picture with your favorite image application

 # This script parses a GenBank or EMBL file named on the command
 # line and produces a PNG rendering of it.  Call it like this:
 # render.pl my_file.embl | display -

 use strict;
 use Bio::Graphics;
 use Bio::SeqIO;

 my $file = shift                       or die "provide a sequence file as the argument";
 my $io = Bio::SeqIO->new(-file=>$file) or die "could not create Bio::SeqIO";
 my $seq = $io->next_seq                or die "could not find a sequence in the file";

 my @features = $seq->all_SeqFeatures;

 # sort features by their primary tags
 my %sorted_features;
 for my $f (@features) {
   my $tag = $f->primary_tag;
   push @{$sorted_features{$tag}},$f;
 }

 my $wholeseq = Bio::SeqFeature::Generic->new(-start=>1,-end=>$seq->length);

 my $panel = Bio::Graphics::Panel->new(
                                      -length    => $seq->length,
                                      -key_style => 'between',
                                      -width     => 800,
                                      -pad_left  => 10,
                                      -pad_right => 10,
                                      );
 $panel->add_track($wholeseq,
                  -glyph => 'arrow',
                  -bump => 0,
                  -double=>1,
                  -tick => 2);

 $panel->add_track($seq,
                  -glyph  => 'generic',
                  -bgcolor => 'blue',
                  -label  => 1,
                 );

 # general case
 my @colors = qw(cyan orange blue purple green chartreuse magenta yellow aqua);
 my $idx    = 0;
 for my $tag (sort keys %sorted_features) {
   my $features = $sorted_features{$tag};
   $panel->add_track($features,
                    -glyph    =>  'generic',
                    -bgcolor  =>  $colors[$idx++ % @colors],
                    -fgcolor  => 'black',
                    -font2color => 'red',
                    -key      => "${tag}s",
                    -bump     => +1,
                    -height   => 8,
                    -label    => 1,
                    -description => 1,
                   );
 }

 print $panel->png;
 exit 0;

DESCRIPTION
Please see Bio::Graphics::Panel for the full interface.

SEE ALSO
Bio::Graphics::Panel, Bio::Graphics::Glyph, Bio::SeqI, Bio::SeqFeatureI, Bio::Das, Bio::DB::GFF::Feature, Ace::Sequence, GD

FEEDBACK

  Mailing Lists
User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list. Your participation is much appreciated.

  bioperl-l@bioperl.org              - General discussion
  http://bioperl.org/MailList.shtml  - About the mailing lists

  Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web:

  http://bugzilla.bioperl.org/

AUTHOR
Lincoln Stein <lstein@cshl.org>.

Copyright (c) 2001 Cold Spring Harbor Laboratory

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See DISCLAIMER.txt for disclaimers of warranty.