diff variant_effect_predictor/Bio/Graphics/Glyph/triangle.pm @ 0:1f6dce3d34e0

Uploaded

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/variant_effect_predictor/Bio/Graphics/Glyph/triangle.pm	Thu Apr 11 02:01:53 2013 -0400
@@ -0,0 +1,143 @@
+package Bio::Graphics::Glyph::triangle;
+# DAS-compatible package to use for drawing a triangle
+
+use strict;
+use vars '@ISA';
+@ISA = 'Bio::Graphics::Glyph::generic';
+use Bio::Graphics::Glyph::generic;
+
+sub pad_left {
+  my $self = shift;
+  my $left = $self->SUPER::pad_left;
+  return $left unless $self->option('point');
+  my $extra = $self->option('height')/3;
+  return $extra > $left ? $extra : $left;
+}
+
+sub pad_right {
+  my $self = shift;
+  my $right = $self->SUPER::pad_right;
+  return $right unless $self->option('point');
+  my $extra = $self->option('height')/3;
+  return $extra > $right ? $extra : $right;
+}
+
+sub draw_component {
+  my $self = shift;
+  my $gd = shift;
+  my $fg = $self->fgcolor;
+  my $orient = $self->option('orient') || 'S';
+
+  # find the center and vertices
+  my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
+  my $xmid = ($x1+$x2)/2;
+  my $ymid = ($y1+$y2)/2;
+
+  my ($vx1,$vy1,$vx2,$vy2,$vx3,$vy3);
+
+  #make an equilateral
+  my ($p,$q) = ($self->option('height'),($x2-$x1)/2);
+  if ($self->option('point')){
+    $q = $p/sqrt(3); #2;
+    $x1 = $xmid - $q; $x2 = $xmid + $q;
+    $y1 = $ymid - $q; $y2 = $ymid + $q;
+  }
+
+  if   ($orient eq 'S'){$vx1=$x1;$vy1=$y1;$vx2=$x2;$vy2=$y1;$vx3=$xmid;$vy3=$y2;}
+  elsif($orient eq 'N'){$vx1=$x1;$vy1=$y2;$vx2=$x2;$vy2=$y2;$vx3=$xmid;$vy3=$y1;}
+  elsif($orient eq 'W'){$vx1=$x2;$vy1=$y1;$vx2=$x2;$vy2=$y2;$vx3=$x2-$p;$vy3=$ymid;}
+  elsif($orient eq 'E'){$vx1=$x1;$vy1=$y1;$vx2=$x1;$vy2=$y2;$vx3=$x1+$p;$vy3=$ymid;}
+
+  # now draw the triangle
+  $gd->line($vx1,$vy1,$vx2,$vy2,$fg);
+  $gd->line($vx2,$vy2,$vx3,$vy3,$fg);
+  $gd->line($vx3,$vy3,$vx1,$vy1,$fg);
+
+  if (my $c = $self->bgcolor){
+    $gd->fillToBorder($xmid,$ymid,$fg,$c) if $orient eq 'S' || $orient eq 'N';
+    $gd->fillToBorder($x1+1,$ymid,$fg,$c) if $orient eq 'E';
+    $gd->fillToBorder($x2-1,$ymid,$fg,$c) if $orient eq 'W';
+  }
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+Bio::Graphics::Glyph::triangle - The "triangle" glyph
+
+=head1 SYNOPSIS
+
+  See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
+
+=head1 DESCRIPTION
+
+This glyph draws an equilateral triangle when -point is defined.
+It draws an isoceles triangle otherwise.  It is possible to draw
+the triangle with the base on the N, S, E, or W side.
+
+=head2 OPTIONS
+
+In addition to the common options, the following glyph-specific
+options are recognized:
+
+  Option      Description                  Default
+  ------      -----------                  -------
+
+  -point      If true, the triangle         0
+              will drawn at the center
+              of the range, and not scaled
+              to the feature width.
+
+  -orient     On which side shall the       S
+              base be? (NSEW)
+
+=head1 BUGS
+
+Please report them.
+
+=head1 SEE ALSO
+
+L<Bio::Graphics::Panel>,
+L<Bio::Graphics::Glyph>,
+L<Bio::Graphics::Glyph::arrow>,
+L<Bio::Graphics::Glyph::cds>,
+L<Bio::Graphics::Glyph::crossbox>,
+L<Bio::Graphics::Glyph::diamond>,
+L<Bio::Graphics::Glyph::dna>,
+L<Bio::Graphics::Glyph::dot>,
+L<Bio::Graphics::Glyph::ellipse>,
+L<Bio::Graphics::Glyph::extending_arrow>,
+L<Bio::Graphics::Glyph::generic>,
+L<Bio::Graphics::Glyph::graded_segments>,
+L<Bio::Graphics::Glyph::heterogeneous_segments>,
+L<Bio::Graphics::Glyph::line>,
+L<Bio::Graphics::Glyph::pinsertion>,
+L<Bio::Graphics::Glyph::primers>,
+L<Bio::Graphics::Glyph::rndrect>,
+L<Bio::Graphics::Glyph::segments>,
+L<Bio::Graphics::Glyph::ruler_arrow>,
+L<Bio::Graphics::Glyph::toomany>,
+L<Bio::Graphics::Glyph::transcript>,
+L<Bio::Graphics::Glyph::transcript2>,
+L<Bio::Graphics::Glyph::translation>,
+L<Bio::Graphics::Glyph::triangle>,
+L<Bio::DB::GFF>,
+L<Bio::SeqI>,
+L<Bio::SeqFeatureI>,
+L<Bio::Das>,
+L<GD>
+
+=head1 AUTHOR
+
+Allen Day E<lt>[e-mail]<gt>.
+
+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.
+
+=cut