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 PolyNode
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PolyNode.IsHole
Del.» IsHole: Boolean; //read only
C++ » bool IsHole; //field
C# » public bool IsHole; //read only property
Returns true when the PolyNode's polygon (Contour) is a hole.
Children of outer polygons are always holes, and children of holes are always (nested) outer polygons.
The IsHole property of a PolyTree object is undefined but its children are always top-level outer polygons.
See Also
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.0 - Help file built on 1-November-2014