This topic describes the new data models for mesh modeling. The new data models are developed based on the Simple Features (SF) standards from Open Geospatial Consortium (OGC).
IndexSurface
The IndexSurface data model describes a polyhedron using indexes. The following figure shows a polyhedron.
You can describe the polyhedron using the coordinates of vertices (p1, p2, p3, p4, p5) and the faces that are described using vertex indexes (1,2,3), (2,4,3),(4,5,3).
TriangleStrip
The TriangleStrip data model describes a polyhedral system using consecutive points. The following figure shows a polyhedron.
You can use the vertex coordinate sequence (p1, p2, p3, p4, p5) to describe the three triangular faces (p1,p2,p3), (p2,p3,p4), (p3, p4, p5).
TriangleFan
The TriangleFan data model describes a polyhedral system using consecutive points. The following figure shows a polyhedron.
You can use the vertex coordinate sequence (p1, p2, p3, p4, p5) to describe the three triangular faces (p1,p2,p3), (p1,p3,p4), (p1, p4, p5).