1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
package Bio::Graphics::Glyph::lightning;
# A lightning bolt glyph to add some pizazz to your displays. Yeow!
use strict;
use base qw(Bio::Graphics::Glyph::generic);
sub my_description {
return <<END;
This glyph draws a lightning bolt of specified height with relative
width, with the point of the lightning bolt centered on the
feature. The height of the bolt is specified by the "height"
option. Due to the complexity of this glyph, it doesn\'t resolve well
with heights less than 11 pixels.
END
}
sub my_options {
{
orient => [
[qw(N S)],
'N',
'Control the direction of the lightning bolt. One of',
'<N>orth, or <S>outh'],
}
}
sub draw_component {
my $self = shift;
my $gd = shift;
my $fg = $self->fgcolor;
# find the center and vertices
my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
my $h = $self->option('height');
my $w = $h*0.6;
my $poly_pkg = $self->polygon_package;
my $polygon = $poly_pkg->new();
# lightning bolt points up or down
if ($self->option('orient') eq 'N') {
$y1 = $y1 + $h/4;
$polygon->addPt($x2,$y1+($h/2));
$polygon->addPt($x2-($w*0.7),$y1+($h/2));
$polygon->addPt($x2-($w*0.2),$y1+($h*0.15));
$polygon->addPt($x2-($w*0.6),$y1+($h*0.15));
$polygon->addPt($x2,$y1-$h/2);
$polygon->addPt($x2-($w*0.1),$y1-($h*0.05));
$polygon->addPt($x2+($w*0.5),$y1-($h*0.05));
$polygon->addPt($x2,$y1+($h/2));
}
else {
$y1 = $y1 + $h/2;
$polygon->addPt($x1,$y1-($h/2));
$polygon->addPt($x1+($w*0.7),$y1-($h/2));
$polygon->addPt($x1+($w*0.2),$y1-($h*0.15));
$polygon->addPt($x1+($w*0.6),$y1-($h*0.15));
$polygon->addPt($x1,$y1+$h/2);
$polygon->addPt($x1+($w*0.1),$y1+($h*0.05));
$polygon->addPt($x1-($w*0.5),$y1+($h*0.05));
$polygon->addPt($x1,$y1-($h/2));
}
# Have to draw TWO polygons for fills in order to get an outline
# because filledPolygon in GD croaks with extra parameters (and
# doesn't support drawing of stroke anyways).
if (my $c = $self->bgcolor) {
$gd->filledPolygon($polygon,$c);
$gd->polygon($polygon,$fg);
} else {
$gd->polygon($polygon,$fg);
}
}
1;
__END__
=head1 NAME
Bio::Graphics::Glyph::lightning - The "lightning" glyph
=head1 SYNOPSIS
See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
=head1 DESCRIPTION
This glyph draws a lightning bolt of specified height with relative
width, with the point of the lightning bolt centered on the
feature. The height of the bolt is specified by the "height"
option. Due to the complexity of this glyph, it doesn't resolve well
with heights less than 11 pixels.
This glyph was designed to indicate point mutations on a nucleotide or
protein backbone.
=head2 OPTIONS
The following options are standard among all Glyphs. See
L<Bio::Graphics::Glyph> for a full explanation.
Option Description Default
------ ----------- -------
-fgcolor Foreground color black
-outlinecolor Synonym for -fgcolor
-bgcolor Background color turquoise
-fillcolor Synonym for -bgcolor
-linewidth Line width 1
-height Height of glyph 10
-font Glyph font gdSmallFont
-connector Connector type 0 (false)
-connector_color
Connector color black
-label Whether to draw a label 0 (false)
-description Whether to draw a description 0 (false)
-hilite Highlight color undef (no color)
The following options are specific to this Glyph.
Option Description Default
------ ----------- -------
-orient direction of lightning bolt N
=head1 BUGS
No reported bugs.
=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
Todd Harris E<lt>harris@cshl.orgE<gt>
Copyright (c) 2004 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
|
