|
0
|
1 package Bio::Graphics::Glyph::triangle;
|
|
|
2 # DAS-compatible package to use for drawing a triangle
|
|
|
3
|
|
|
4 use strict;
|
|
|
5 use vars '@ISA';
|
|
|
6 @ISA = 'Bio::Graphics::Glyph::generic';
|
|
|
7 use Bio::Graphics::Glyph::generic;
|
|
|
8
|
|
|
9 sub pad_left {
|
|
|
10 my $self = shift;
|
|
|
11 my $left = $self->SUPER::pad_left;
|
|
|
12 return $left unless $self->option('point');
|
|
|
13 my $extra = $self->option('height')/3;
|
|
|
14 return $extra > $left ? $extra : $left;
|
|
|
15 }
|
|
|
16
|
|
|
17 sub pad_right {
|
|
|
18 my $self = shift;
|
|
|
19 my $right = $self->SUPER::pad_right;
|
|
|
20 return $right unless $self->option('point');
|
|
|
21 my $extra = $self->option('height')/3;
|
|
|
22 return $extra > $right ? $extra : $right;
|
|
|
23 }
|
|
|
24
|
|
|
25 sub draw_component {
|
|
|
26 my $self = shift;
|
|
|
27 my $gd = shift;
|
|
|
28 my $fg = $self->fgcolor;
|
|
|
29 my $orient = $self->option('orient') || 'S';
|
|
|
30
|
|
|
31 # find the center and vertices
|
|
|
32 my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
|
|
|
33 my $xmid = ($x1+$x2)/2;
|
|
|
34 my $ymid = ($y1+$y2)/2;
|
|
|
35
|
|
|
36 my ($vx1,$vy1,$vx2,$vy2,$vx3,$vy3);
|
|
|
37
|
|
|
38 #make an equilateral
|
|
|
39 my ($p,$q) = ($self->option('height'),($x2-$x1)/2);
|
|
|
40 if ($self->option('point')){
|
|
|
41 $q = $p/sqrt(3); #2;
|
|
|
42 $x1 = $xmid - $q; $x2 = $xmid + $q;
|
|
|
43 $y1 = $ymid - $q; $y2 = $ymid + $q;
|
|
|
44 }
|
|
|
45
|
|
|
46 if ($orient eq 'S'){$vx1=$x1;$vy1=$y1;$vx2=$x2;$vy2=$y1;$vx3=$xmid;$vy3=$y2;}
|
|
|
47 elsif($orient eq 'N'){$vx1=$x1;$vy1=$y2;$vx2=$x2;$vy2=$y2;$vx3=$xmid;$vy3=$y1;}
|
|
|
48 elsif($orient eq 'W'){$vx1=$x2;$vy1=$y1;$vx2=$x2;$vy2=$y2;$vx3=$x2-$p;$vy3=$ymid;}
|
|
|
49 elsif($orient eq 'E'){$vx1=$x1;$vy1=$y1;$vx2=$x1;$vy2=$y2;$vx3=$x1+$p;$vy3=$ymid;}
|
|
|
50
|
|
|
51 # now draw the triangle
|
|
|
52 $gd->line($vx1,$vy1,$vx2,$vy2,$fg);
|
|
|
53 $gd->line($vx2,$vy2,$vx3,$vy3,$fg);
|
|
|
54 $gd->line($vx3,$vy3,$vx1,$vy1,$fg);
|
|
|
55
|
|
|
56 if (my $c = $self->bgcolor){
|
|
|
57 $gd->fillToBorder($xmid,$ymid,$fg,$c) if $orient eq 'S' || $orient eq 'N';
|
|
|
58 $gd->fillToBorder($x1+1,$ymid,$fg,$c) if $orient eq 'E';
|
|
|
59 $gd->fillToBorder($x2-1,$ymid,$fg,$c) if $orient eq 'W';
|
|
|
60 }
|
|
|
61 }
|
|
|
62
|
|
|
63 1;
|
|
|
64
|
|
|
65 __END__
|
|
|
66
|
|
|
67 =head1 NAME
|
|
|
68
|
|
|
69 Bio::Graphics::Glyph::triangle - The "triangle" glyph
|
|
|
70
|
|
|
71 =head1 SYNOPSIS
|
|
|
72
|
|
|
73 See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
|
|
|
74
|
|
|
75 =head1 DESCRIPTION
|
|
|
76
|
|
|
77 This glyph draws an equilateral triangle when -point is defined.
|
|
|
78 It draws an isoceles triangle otherwise. It is possible to draw
|
|
|
79 the triangle with the base on the N, S, E, or W side.
|
|
|
80
|
|
|
81 =head2 OPTIONS
|
|
|
82
|
|
|
83 In addition to the common options, the following glyph-specific
|
|
|
84 options are recognized:
|
|
|
85
|
|
|
86 Option Description Default
|
|
|
87 ------ ----------- -------
|
|
|
88
|
|
|
89 -point If true, the triangle 0
|
|
|
90 will drawn at the center
|
|
|
91 of the range, and not scaled
|
|
|
92 to the feature width.
|
|
|
93
|
|
|
94 -orient On which side shall the S
|
|
|
95 base be? (NSEW)
|
|
|
96
|
|
|
97 =head1 BUGS
|
|
|
98
|
|
|
99 Please report them.
|
|
|
100
|
|
|
101 =head1 SEE ALSO
|
|
|
102
|
|
|
103 L<Bio::Graphics::Panel>,
|
|
|
104 L<Bio::Graphics::Glyph>,
|
|
|
105 L<Bio::Graphics::Glyph::arrow>,
|
|
|
106 L<Bio::Graphics::Glyph::cds>,
|
|
|
107 L<Bio::Graphics::Glyph::crossbox>,
|
|
|
108 L<Bio::Graphics::Glyph::diamond>,
|
|
|
109 L<Bio::Graphics::Glyph::dna>,
|
|
|
110 L<Bio::Graphics::Glyph::dot>,
|
|
|
111 L<Bio::Graphics::Glyph::ellipse>,
|
|
|
112 L<Bio::Graphics::Glyph::extending_arrow>,
|
|
|
113 L<Bio::Graphics::Glyph::generic>,
|
|
|
114 L<Bio::Graphics::Glyph::graded_segments>,
|
|
|
115 L<Bio::Graphics::Glyph::heterogeneous_segments>,
|
|
|
116 L<Bio::Graphics::Glyph::line>,
|
|
|
117 L<Bio::Graphics::Glyph::pinsertion>,
|
|
|
118 L<Bio::Graphics::Glyph::primers>,
|
|
|
119 L<Bio::Graphics::Glyph::rndrect>,
|
|
|
120 L<Bio::Graphics::Glyph::segments>,
|
|
|
121 L<Bio::Graphics::Glyph::ruler_arrow>,
|
|
|
122 L<Bio::Graphics::Glyph::toomany>,
|
|
|
123 L<Bio::Graphics::Glyph::transcript>,
|
|
|
124 L<Bio::Graphics::Glyph::transcript2>,
|
|
|
125 L<Bio::Graphics::Glyph::translation>,
|
|
|
126 L<Bio::Graphics::Glyph::triangle>,
|
|
|
127 L<Bio::DB::GFF>,
|
|
|
128 L<Bio::SeqI>,
|
|
|
129 L<Bio::SeqFeatureI>,
|
|
|
130 L<Bio::Das>,
|
|
|
131 L<GD>
|
|
|
132
|
|
|
133 =head1 AUTHOR
|
|
|
134
|
|
|
135 Allen Day E<lt>day@cshl.orgE<gt>.
|
|
|
136
|
|
|
137 Copyright (c) 2001 Cold Spring Harbor Laboratory
|
|
|
138
|
|
|
139 This library is free software; you can redistribute it and/or modify
|
|
|
140 it under the same terms as Perl itself. See DISCLAIMER.txt for
|
|
|
141 disclaimers of warranty.
|
|
|
142
|
|
|
143 =cut
|
