In order to speed up the reconstruction of the topology of 3D mesh model, half-edge structure was selected to represent the topological relation of solid model. A new index method to quicken vertices combination was designed. During the process of vertex combination, directly locating the vertex position was searched, without the AVL lookup table, so that the time complexity of the topological reconstruction was reduced to O(n) from O(n log n). The results of test by SMF format files show that the model wit...
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