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1 package Bio::Graphics::Glyph::dot;
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2 # DAS-compatible package to use for drawing a ring or filled circle
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3
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4 use strict;
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5 use vars '@ISA';
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6 use Bio::Graphics::Glyph::generic;
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7 @ISA = 'Bio::Graphics::Glyph::generic';
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8 use constant PI => 3.14159;
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9
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10 sub draw {
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11 my $self = shift;
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12 # $self->SUPER::draw(@_);
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13 my $gd = shift;
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14 my $fg = $self->fgcolor;
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15
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16 # now draw a circle
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17 my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
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18 my $xmid = (($x1+$x2)/2); my $width = abs($x2-$x1);
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19 my $ymid = (($y1+$y2)/2); my $height = abs($y2-$y1);
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20
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21 #only point ovals allowed now
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22 my $r = $self->height ;
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23 $gd->arc($xmid,$ymid,$r,$r,0,360,$fg);
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24
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25
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26 if ($self->option('bgcolor')){
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27 my $c = $self->color('bgcolor');
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28 $gd->fill($xmid,$ymid,$c);
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29 }
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30
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31 #how about a fuse for the bomb?
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32 #work in degrees, not radians. So we define PI above
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33 if(defined $self->option('stem')){
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34 my $angle = $self->option('stem');
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35
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36 $gd->line($xmid+($r/PI*sin($angle*PI/180)),
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37 $ymid+($r/PI*cos($angle*PI/180)),
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38 $xmid+($r*sin($angle*PI/180)),
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39 $ymid+($r*cos($angle*PI/180)),$fg);
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40 }
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41
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42 $self->draw_label($gd,@_) if $self->option('label');
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43 }
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44
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45 1;
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46
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47 __END__
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48
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49 =head1 NAME
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50
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51 Bio::Graphics::Glyph::dot - The "dot" glyph
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52
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53 =head1 SYNOPSIS
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54
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55 See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
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56
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57 =head1 DESCRIPTION
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58
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59 This glyph draws an ellipse the width of the scaled feature passed,
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60 and height a possibly configured height (See Bio::Graphics::Glyph).
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61
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62 =head2 OPTIONS
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63
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64 The following options are standard among all Glyphs. See
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65 L<Bio::Graphics::Glyph> for a full explanation.
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66
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67 Option Description Default
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68 ------ ----------- -------
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69
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70 -fgcolor Foreground color black
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71
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72 -outlinecolor Synonym for -fgcolor
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73
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74 -bgcolor Background color turquoise
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75
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76 -fillcolor Synonym for -bgcolor
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77
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78 -linewidth Line width 1
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79
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80 -height Height of glyph 10
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81
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82 -font Glyph font gdSmallFont
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83
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84 -connector Connector type 0 (false)
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85
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86 -connector_color
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87 Connector color black
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88
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89 -label Whether to draw a label 0 (false)
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90
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91 -description Whether to draw a description 0 (false)
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92
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93 In addition to the common options, the following glyph-specific
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94 options are recognized:
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95
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96 Option Description Default
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97 ------ ----------- -------
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98
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99 -point Whether to draw an ellipse feature width
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100 the scaled width of the
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101 feature or with radius
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102 point.
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103
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104 =head1 BUGS
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105
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106 Please report them.
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107
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108 =head1 SEE ALSO
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109
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110 L<Bio::Graphics::Panel>,
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111 L<Bio::Graphics::Glyph>,
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112 L<Bio::Graphics::Glyph::arrow>,
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113 L<Bio::Graphics::Glyph::cds>,
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114 L<Bio::Graphics::Glyph::crossbox>,
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115 L<Bio::Graphics::Glyph::diamond>,
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116 L<Bio::Graphics::Glyph::dna>,
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117 L<Bio::Graphics::Glyph::dot>,
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118 L<Bio::Graphics::Glyph::ellipse>,
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119 L<Bio::Graphics::Glyph::extending_arrow>,
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120 L<Bio::Graphics::Glyph::generic>,
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121 L<Bio::Graphics::Glyph::graded_segments>,
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122 L<Bio::Graphics::Glyph::heterogeneous_segments>,
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123 L<Bio::Graphics::Glyph::line>,
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124 L<Bio::Graphics::Glyph::pinsertion>,
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125 L<Bio::Graphics::Glyph::primers>,
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126 L<Bio::Graphics::Glyph::rndrect>,
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127 L<Bio::Graphics::Glyph::segments>,
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128 L<Bio::Graphics::Glyph::ruler_arrow>,
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129 L<Bio::Graphics::Glyph::toomany>,
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130 L<Bio::Graphics::Glyph::transcript>,
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131 L<Bio::Graphics::Glyph::transcript2>,
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132 L<Bio::Graphics::Glyph::translation>,
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133 L<Bio::Graphics::Glyph::triangle>,
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134 L<Bio::DB::GFF>,
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135 L<Bio::SeqI>,
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136 L<Bio::SeqFeatureI>,
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137 L<Bio::Das>,
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138 L<GD>
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139
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140 =head1 AUTHOR
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141
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142 Allen Day E<lt>day@cshl.orgE<gt>.
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143
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144 Copyright (c) 2001 Cold Spring Harbor Laboratory
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145
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146 This library is free software; you can redistribute it and/or modify
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147 it under the same terms as Perl itself. See DISCLAIMER.txt for
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148 disclaimers of warranty.
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149
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150 =cut
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