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isotropism n.【物理學】各向同性(現象)。

isotropy

Thirdly , from the idea of locally linear approximate , another tangent - plane algorithm is presented for the distance between the convex nurbs surfaces . the critical step is the construction of the support mapping by gjk and lc to search for nearest points , and emphases are laid on dealing with isotropic cases and choosing initial iterated points . it is also proved that no isotropism during iteration would take place if initial iterated points are positive points 切平面法是運用gjk和lc構造支撐映射的原理而設計的一個搜索近點對的迭代法,著重給出了迷向情況的處理和初始迭代點的選取方法,并證明了只要將初始迭代點取為陽點,就不會出現迷向情況。