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Triangulating Twisted Polygon Surfaces

Divides a twisted polygon surface into triangular planes.

 

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When one of the base polygons of a regular polygon solid is rotated, the connecting surfaces between the two base polygons is no longer a flat surface.

To ensure that such a solid can be viewed correctly in the solid viewing mode, it is necessary to triangulate the twisted surfaces. See the illustration in Creating a solid from two polygons (\sol2s).