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PolyNodes are encapsulated within a PolyTree container, and together provide a data structure representing the parent-child relationships of polygon contours returned by Clipper's Execute method.
A PolyNode object represents a single polygon. Its IsHole property indicates whether it's an outer or a hole. PolyNodes may own any number of PolyNode children (Childs), where children of outer polygons are holes, and children of holes are (nested) outer polygons.
Methods | Properties |
---|---|
In PolyNode: | |
GetNext | ChildCount |
Childs | |
Contour | |
IsHole | |
IsOpen | |
Parent |
Overview, Clipper.Execute, PolyTree
Copyright ©2010-2013 Angus Johnson - Clipper Ver 6.0.0 - Help file built on 30-October-2013