Exclude overlapped area(s) with multiple area(s) - Every point should be in one level

[AhsinChoudhry786]

If there are two rectangle shapes and both shapes are overlapped, I want to create polygons in a way that the areas shouldn't overlap with each other. Each point should only be in one level. Is it possible with the Clipper library? Thanks

[reunanen]

So let's say you have rectangles A and B. Yes, using Clipper you can very easily calculate e.g. C = A \ B, i.e. the area that is covered by A but not by B.

Then your end result would be B and C, if I understand your question correctly.

[AhsinChoudhry786]

Yes exactly, I want to calculate a list of points for shapes A, B and C for the area each shape is covering.

basically if there are two rectangles overlapped with each other, I want to create three de-overlapped polygons

[AhsinChoudhry786]

Which function from clipper library I can use to implement that?

[reunanen]

The Difference function. Or just use one of the Execute functions, but with ClipType set to Difference.