redgreen_segment documentation.

This glyph is similar to the graded_segments glyph except that it
generates a green->red gradient suitable for use with microarray data.
A feature score of 0 is full green; a feature score of 1.0 is full
red; intermediate scores are shades of yellow. The following options are standard among all Glyphs. See
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)

Methods

HSVtoRGB	No description	Code
calculate_color	No description	Code
mMax	No description	Code
mMin	No description	Code

Methods description

None available.

Methods code

HSVtoRGB

description

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sub HSVtoRGB {

($$$) {  my ($h,$s,$v)=@_;
  my ($r,$g,$b,$i,$f,$p,$q,$t);

  if( $s == 0 ) {
    ## achromatic (grey)
    return ($v,$v,$v);
  }

  $h /= 60;                       ## sector 0 to 5
  $i = int($h);
  $f = $h - $i;                   ## factorial part of h
  $p = $v * ( 1 - $s );
  $q = $v * ( 1 - $s * $f );
  $t = $v * ( 1 - $s * ( 1 - $f ) );
  
  if($i<1) {
    $r = $v;
    $g = $t;
    $b = $p;
  } elsif($i<2){
    $r = $q;
    $g = $v;
    $b = $p;
  } elsif($i<3){
    $r = $p;
    $g = $v;
    $b = $t;
  } elsif($i<4){
    $r = $p;
    $g = $q;
    $b = $v;
  } elsif($i<5){
    $r = $t;
    $g = $p;
    $b = $v;
  } else {
    $r = $v;
    $g = $p;
    $b = $q;
  }
  return ($r,$g,$b);

}

calculate_color

description

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sub calculate_color {

  my $self = shift;
  my $val  = shift;
  return (0,0,0) unless $val =~ /^[\d.]+$/;
  return HSVtoRGB(120*(1-$val),1,255);

}

mMax

description

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sub mMax {

        my $n=0;
        map { $n=($n<$_) ? $_ : $n } @_;
        return($n);     
}


1;

}

mMin

description

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sub mMin {

        my $n=10000000000000;
        map { $n=($n>$_) ? $_ : $n } @_;
        return($n);

}

General documentation

BUGS

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Please report them.