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It is possible to make Constrained Delaunay triangulations in PostGIS (PostgreSQL)? I have a Polygon and I need to make internal triangulation like this:

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I tried to use ST_DelaunayTriangles but is not possible to add constraints like "triangulations only internal polygon"

Can someone help me?

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There is now ST_ConstrainedDelaunayTriangles in postgis 3.

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