圓柱面展開圖 的英文怎麼說
中文拼音 [yuánzhùmiànzhǎnkāitú]
圓柱面展開圖
英文
fast plot-
Modeling : this thesis develops a method different from traditional techniques that begins with the cylindrical projection of a generic model and its seamless global texture map using multiresolution technique, and then automatically fit the unwrapped cylindrical projected mesh to the texture map with an improved algorithm that based on 2d morphing to specify corresponding feature points ( or lines ). finally, we propose a formula of inverse cylindrical projection to recompose the deformed mesh, and after the texture mapping a photo - realistic individual facial model is created
採用多解析度技術構造紋理無縫拼接圖，然後把三維網格模型投影到圓柱面上並展開，根據二維圖象變形技術中特徵點匹配演算法的數學思想，將匹配公式進行改進后應用於模型網格點的適配，在作了一定假設后推導出逆向圓柱映射的計算公式，再將適配后的柱面網格映射回去，最後進行紋理映射生成真實感的特定人臉的三維模型。The sheet metal work pieces are first divided into several groups such as cylinder, cone and so on. then, under considering the intersection of two cylinders or a cone and a plane, the mathematical models have been developed, and the corresponding unfolding methods have been determined. on the platform of autocad, the system has been redeveloped by means of autolisp and activex object, and the unfolding cad system has been designed, which can realize the parametric drawing of the extension of sheet metal
結合工程實際對曲面構件進行了分類，並通過分析建立了包括圓柱、圓錐、圓柱與圓柱相貫、圓錐與平面相貫等曲面構件的數學模型，確定了適當的展開方法，以autocad2000為平臺，以autolisp結合activex對象為工具，進行二次開發，設計了曲面展開cad系統，從而實現鈑金件展開圖的參數化繪圖。
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