Programming Web Graphics with Perl and GNU Softwar

Name

bounds( ) — get the bounding rectangle of a polygon

Synopsis

GD::Polygon::bounds

This method returns a list of values that describe the smallest rectangle that completely encloses the polygon. The return values are in a list of the form (left, top, right, bottom), where left is the x coordinate of the left side of the rectangle, topis the y value of the top, right is the x value of the right side, and bottom is the y value of the bottom. The following lines will draw a red box around a previously defined polygon:

my  @boundingBox = $poly->bounds;          # $poly is a polygon object
$image->rectangle(@boundingBox, red);