Class CM3SurfaceGeometry

CM3SurfaceGeometry Class
Creates a rectangular buffered geometry based on a BufferGeometry. The geometry uses an array of
coordinates and a list of face indexes. Surfaces then use the indexes to save having mulitple
instances of the coordinates. The geometry will have positions,normals, uvs (for textures).

This class is used to create surfaces for DEMs and also extruded geometries
This class inherites from THREE.BufferGeometry.


Copyright (C) 2020, Humboldt State University, Jim Graham

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