对含内孔面模型的切割仿真研究

为了快速封堵含内孔的面模型被切割后形成的中空截面轮廓,以便完整的表达模型.采用先剖分外轮廓,以封堵整个截面的轮廓,然后依次去除内轮廓区域的思想,最终实现中空面的封堵.先使用逐点插入算法剖分整个中空截面轮廓,然后删除已检测到的内孔洞的区域,在确保剖切面内所有轮廓顶点不发生任何变化的要求下.实现了含内孔面模型的快速切割仿真,并使用实例加以验证.该算法可以广泛地应用于各种含内孔面模型的切割仿真,尤其在医学手术仿真中.

Cutting Simulation of Surface-Facet Model with Internal Holes

For the sake of covering the hollow generated by facet-model cut and expressing the model more completely,this paper adopted a method which first divided the external contours to cover the whole contour of cross-section,then deleted internal contours in turn,at last realized the covering of hollow faces. The method divided the whole hollow cross-section contour using incremental inserting algorithm first,and then deleted triangles in holes detected,guaranteed that all the contour vertexes in the section cut...