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trackster: draw inverted fishbones for genes with UTRs but no introns (one block with meaningful thick region)

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James Taylor
2011-04-02 13:34:08 -04:00
parent 9b7ef47d98
commit 3f3af03da3
1 changed files with 16 additions and 1 deletions
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static/scripts/trackster.js
+16 -1
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@@ -2995,9 +2995,24 @@ extend( LinkedFeaturePainter.prototype, FeaturePainter.prototype, {
// - No thick is sometimes encoded as thick_start == thick_end, so don't draw in that case
if (thick_start !== undefined && feature_te > feature_ts && !(block_start > thick_end || block_end < thick_start) ) {
var block_thick_start = Math.max(block_start, thick_start),
block_thick_end = Math.min(block_end, thick_end);
block_thick_end = Math.min(block_end, thick_end);
ctx.fillRect(block_thick_start, y_center + 1,
block_thick_end - block_thick_start, thick_height);
if ( feature_blocks.length == 1 ) {
// Exactly one block means we have no introns, but do have a distinct "thick" region
if (feature_strand === "+") {
ctx.fillStyle = ctx.canvas.manager.get_pattern( 'right_strand_inv' );
} else if (feature_strand === "-") {
ctx.fillStyle = ctx.canvas.manager.get_pattern( 'left_strand_inv' );
}
// If region is wide enough in pixels, pad a bit
if ( block_thick_start + 14 < block_thick_end ) {
block_thick_start += 2;
block_thick_end -= 2;
}
ctx.fillRect( block_thick_start, y_center + 1,
block_thick_end - block_thick_start, thick_height );
}
}
}
}