雕塑实体模型通过裁剪曲面片和半边数据结构来表达几何和拓扑信息。
The topology and geometry of solid is represented by trimmed curve surface and half-edge data structure.
曲面重建就是根据曲面实物模型的点云，重建其几何和拓扑信息，并再现特征的过程。
Surface reconstruction is reproduction process of geometric topology information and feature bases on surface practicality model.
首先，对经过预处理的模型进行骨架提取，并记录每个骨架点相应的几何和拓扑结构信息；
The axis skeleton, the information of geometry and topology of skeleton point were got after preprocessing of model.
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