基于坐标测量机的曲面自适应采样的网格生成

自由曲面的数字化是自由曲面重建的关键技术之一，如何在三坐标测量机上合理对自由曲面进行采样，将关系到曲面重建精度和测量效率等重要问题，作者提出以物体重心坐标为数学模型的采样算法，该方法具有保存曲面拓扑信息和网格自组的功能，能够较准确地反映曲面的形状特征，同时对算法得到的网格数据进行了分析和处理，为坐标测量机的采样提供了一条简洁而高效的途径。

Study on Adaptive Sampling and Mesh Generation of Free-form Surfaces Based on Coordinate Measuring Machine

Digitizing of free form surfaces is one of key technologies on the reconstruction of free form surfaces. It is important to know how to sample properly free form surfaces on CMM, which concerns the reconstruction accuracy of free form surfaces and measuring efficiency. The mathematical model of sampling algorithm is proposed based on the concept of the center of gravity. Using the method, the topological information of surfaces can be preserved, and sampling mesh can be self organized. By analyzing and dealing with mesh data received from sampling algorithm, one approach with brevity and higher efficiency is provided on CMM.