...做法如下:在坐标平面(我们先从平面入手)上,取定“点偶”(point pair)(P,Q),称其为“有向线段”(directed line segment),P为“始点”,Q为”终点“,记为PQ。
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The intersection of sweep volume with complicated surface normal is transformed into computation of intersection between triangular mesh and directed line segment.
将扫描体与复杂曲面法矢的求交问题,转化为三角网格与有向线段之间的求交计算。
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