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How do I determine winding order of polygons ?

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03-17-2016 06:31 PM
MarcHillman
Occasional Contributor

I assume that outer boundary polygons are clockwise, and inner boundary anti-clockwise. If so, how do I determine the winding direction of a polygon?

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2 Replies
MarcHillman
Occasional Contributor

I need to do it on a part basis, i.e. I have a single polygon as a Esri.ArcGISRuntime.Geometry.ReadOnlySegmentCollection. Esri.ArcGISRuntime.Geometry.GeometryEngine.Area won't accept this as it's not "Geometry"

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MarcHillman
Occasional Contributor

Still not answered. GeometryEngine.GeodesicArea returns a positive number no matter the winding direction.

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