描述

可用性：2.2.0：在2.1.0版本中记录了这一点，但在2.1版本中被意外遗漏了。

This method needs SFCGAL backend.

This function supports 3d and will not drop the z-index.

This function supports Polyhedral surfaces.

This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).