Hello
I have a query regarding the creation of a polygon from an IPointCollection (see attached).
I have 2 IPolylines (A and B) that are closed circles. A is created via ConstructOffset of B. Both A and B have IPointCollections that start and finish at X and vertices that travel in a clockwise direction.
My aim is to create a polygon out of these two lines by the insertion of the red line at C.
My thinking is that the vertices in boundary of the new Polygon should start at X and travel clockwise around A, back to X. Then down the red line and anticlockwise around B until reaching the redline and back up to X.
I have reversed the orientation of the vertices in IPointCollection B and added both A and B IPointCollections to a new Polygon point collection.
However I get a solid donut polygon with a hole, the red line seems to be ignored.
Any assistance appreciated...
Nigel