Shape
interface provides definitions for objects that represent some form of geometric shape. The Shape
is described by a {@link PathIterator} object, which can express the outline of the Shape
as well as a rule for determining how the outline divides the 2D plane into interior and exterior points. Each Shape
object provides callbacks to get the bounding box of the geometry, determine whether points or rectangles lie partly or entirely within the interior of the Shape
, and retrieve a PathIterator
object that describes the trajectory path of the Shape
outline. Definition of insideness: A point is considered to lie inside a Shape
if and only if:
Shape
boundary or Shape
boundary and the space immediately adjacent to the point in the increasing X
direction is entirely inside the boundary or Y
direction is inside the boundary. The contains
and intersects
methods consider the interior of a Shape
to be the area it encloses as if it were filled. This means that these methods consider unclosed shapes to be implicitly closed for the purpose of determining if a shape contains or intersects a rectangle or if a shape contains a point.
@see java.awt.geom.PathIterator
@see java.awt.geom.AffineTransform
@see java.awt.geom.FlatteningPathIterator
@see java.awt.geom.GeneralPath
@version 1.19 06/24/98
@author Jim Graham
@since 1.2
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