spherical polygon 中文意思是什麼
spherical polygon
解釋
球面多邊形-
The new line against polygon window clipping algorithm which makes full use of two judgement conditions to confirm noneffective intersections between the lines and the polygon edges can only calculate the effective intersections and increases the efficiency of the clipping. third, a new 3 - d clipping algorithm of line against spherical surface window is introduced for the first time
一般多邊形窗口線裁剪的改進演算法充分利用確定被裁線段與多邊形邊無交的兩個判斷條件，對完全不可見線段以及與被裁線段無有效交點的多邊形邊進行了排除，只有當線段與多邊形邊有有效交點時才求交，避免了不必要的求交，提高了演算法效率。 -
The details as followed : 1. summarize and analyze the methods of meso - mechanics of concrete and researching documents on the theory of damage of concrete ; 2. based on the packing approach of spherical aggregates, a method generating polygon aggregate model of concrete was presented, by which the codes of aggregate packing and meso - meshes of finite element plotting were designed taking into account the actual aggregate content, grading, and aggregate configuration
具體工作由以下幾個方面: 1 .分析總結了混凝土細觀力學分析方法和現有混凝土材料損傷破壞理論的研究成果; 2 .在研究圓形骨料投放方法的基礎上，提出了一種多邊形隨機骨料投放方法，並編制了凸多邊形模型生成程序和細觀有限元剖分程序。這種生成方法所得到的凸多邊形骨料模型既反映了骨料的實際形態又維持骨料的實際級配和含量。
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