Half-edge Collapse Simplification Algorithm Based on Angle Feature

摘要

A half folding algorithm based on angle features is proposed to meet the requirements of 3D model's simplification. The folded side with redundant data is determined by the side length and the angle between the side and the vertex's direction vector. The reserved vertex of the folded side is determined by the mean and the variance of the angle between the vertex's direction vector and all the sides through the vertex. The 3D model is simplified by folding the folded side to the reserved vertex. This algorithm is tested by Bunny 3D model, the result shows that this algorithm can reduce the redundant data without losing model features.