NAME

gbrowse_key_img

SYNOPSIS

A small cgi script designed for generating key images for features using heat_map glyph Shows the color space used to display feature scores. Hardcoded to be 120x23 image and may be embedded in hover balloons using stanza code, i.e.

balloon hover = sub { my $f = shift;
                      my $score = $f->score;
                      my $img_url = "...gbrowse_key_img?min=0;max=0.001;start_c=blue;end_c=green";
                      return $score ? join (" ","<img width=120 height=23 src=\"".$img_url."\"/>",$f->name,"(Score:".$score.")") : $f->name;

The above code will display color key with score information

Options

 Option      Description                   Default
 ------      -----------                   -------

 -start_c     Beginning of the color       white
              gradient, expressed as a 
              named color or RGB hex 
              string

 -end_c       End of the color gradient    red

 -min         Minimum score of the data    0
 
 -max         Maximum score of the data    255

 -width       Width of the image           120

 -height      Height of the image          20