vector polygon 中文意思是什麼
vector polygon
解釋
矢多邊形-
Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。 -
Abstract : basing on the introduction of brim - vector and face - vector, by means of analogy, the paper popularizes the cosine - theorem from flat - triangle to vacuum - polygon and arbitrary - polyhedron, concludes a series of generalized cosine - theorems which have symmetric and conformable form, and presents short and strict proof
文摘:在引入邊矢量及面矢量概念的基礎上，以類比作為手段，對餘弦定理進行由平面三角形到空間多邊形乃至任意多面體的一系列推廣，得出了形式對稱一致的一組廣義餘弦定理，並給出了其簡捷嚴謹的證明。 -
For visualization geometrical data generated in numerical simulations, two subdivision methods are used and described in full detail. the two methods, which are triangular subdivision and quadrilateral subdivision, are incorporated into the visualization system with vtk for surface and volume rendering. the system supports a wide variety of visualization algorithms including scalar, vector, tensor, texture, and volumetric methods ; and advanced modeling techniques such as implicit modeling, polygon reduction, mesh smoothing, cutting, and contouring
針對數值計算時被計算的幾何外形，即三維空間離散的數據所確定的幾何外形需要顯示出來特性，本文詳細介紹了兩種常用的剖分技術，即三角形剖分和四邊形剖分原理、方法；將現有的、特定的可視化演算法和技術與vtk類庫充分結合，設計了能讀取、存貯三角形或四邊形剖分的數據組織以及實現其幾何體繪制的類庫。 -
Then the shape descriptors are introduced to describe the polygon. the shape descriptors are the number of the polygon ' s vertices, and the triangles areas ratio vector of the longest line hemline
在對多邊形進行識別時，用描述子即多邊形的頂點個數以及以最長線段為底的同底三角形面積比向量，來描述多邊形的形狀。
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