Abstract
To ensure all boundary edges of each region are retained in the final mesh during mesh generation, a procedure suitable for non-manifold with intersecting boundaries is proposed to recover the non-manifold and intersecting boundaries. In the procedure, Steiner points are inserted directly on the interFigure of missing boundaries and mesh edges from a triangulation. Based on the boundary recovery procedure, Delaunay triangulation algorithms for the domain with interior constraints and for the non-manifold are proposed, and the latter can be used as a new effective polygon Boolean operations algorithm.
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