Tickit::RectSet - store a set of rectangular regions
Objects in this class store a set of rectangular regions. The object tracks which areas are covered, to ensure that overlaps are avoided, and that neighbouring regions are merged where possible. The order in which they are added is not important.
New regions can be added using the add method. The rects method returns a list of non-overlapping Tickit::Rect regions, in top-to-bottom, left-to-right order.
$rectset = Tickit::RectSet->new
Returns a new Tickit::RectSet instance, initially empty.
@rects = $rectset->rects
Returns a list of the covered regions, in order first top to bottom, then left to right.
$rectset->add( $rect )
Adds the region covered by $rect to the stored region list.
$rectset->subtract( $rect )
Removes any covered region that intersects with $rect from the stored region list.
Remove all the regions from the set.
$bool = $rectset->intersects( $rect )
Returns true if $rect intersects with any region in the set.
$bool = $rectset->contains( $rect )
Returns true if $rect is entirely covered by the regions in the set. Note that it may be that the rect requires two or more regions in the set to completely cover it.
Paul Evans <email@example.com>
To install Tickit, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.