摘要 |
Simplifying a surface represented as a height field. The simplification resulting in a triangular mesh having n vertices, such that the topology of the surface is maintained in the simplified surface representation. The simplification including assigning error values to each vertex not having a missing value, identifying as required vertices those vertices that may not be removed without altering the topology of the surface; and (1) if n is less than or equal the number of required vertices, remove all other vertices or (2) if n is greater than or equal the number of required vertices, remove u-n vertices, where u is the number of vertices that do not have missing values in the original height field.
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