收縮三角型 的英文怎麼說

中文拼音 [shōusuōsānjiǎoxíng]
收縮三角型 英文
contracting triangle
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 縮 : 縮構詞成分。
  • 三 : Ⅰ數詞1. （二加一后所得） three 2. （表示多數或多次） more than two; several; many Ⅱ名詞（姓氏） a surname
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  • 收縮 : 1 （由大變小; 由長變短） contract; shrink 2 （緊縮） concentrate one s forces; draw back 3 take u...
  1. Because 3d surface model contains huge number of triangles, a mesh simplification algorithm based on triangle edges shrinkages is presented in this paper to speed up the rendering in real time. in chapter four, the cutting of reconstructed 3d models is explored. in order to observe expediently the size and interspaces structure of inner tissues and avoid the discommodiousness of surface reconstruction, a simple cutting methods based on ray - casting algorithm is presented to get the inner images information

    第三章主要對marchingcubes （ mc ）表面重建演算法進行描述， mc演算法是基於規則體數據抽取等值面的經典演算法，本文實現了這種等值面構建表面模型的演算法，並對其演算法的二義性進行了相應的處理；針對其重建速度較慢的問題，提出了體素間相關性處理的方法來加快重建速度；並對其生成的表面幾何模型所包含三角面片數量巨大的問題，提出一種快速有效的三角形邊收縮演算法進行網格簡化，提高了表面模型的繪制速度。
  2. The rapid prototyping algorithms were implemented by programming in ejb. the algorithms included the algorithm of choosing entity slicing layer thickness, the scanning algorithm of beeline parallel to x axis at first layer and beeline increasing by some angle and the area - scanning algorithm, etc. the general of the rapid prototyping software system based on j2ee was solved in the generals of system, module and application

    在j2ee框架模型ejb組件中，編程實現了應用層收縮率v對固定的鋪粉厚度和自適應變鋪粉厚度進行調整的兩種實體分層層厚選取演算法;為了提高軟體的運行效率，將整個三維數據源表按z向高度分成20份的切片處理演算法;第一層平行於x軸每層比前層遞增一定角度的直線掃描演算法和分區掃描等演算法。
  3. After analyzed and studied on some algorithms about how to simplify a complex 3d geometric model from home and abroad, this paper proposes the concept of divisional envelope pitch and ameliorates the method of envelope ' s conformation proposed by cohen using the dichotomy in linear search. when a triangle is selected and contracted tentatively, two corresponding divisional envelope pitches should be constructed at first. the divisional envelope pitch is a bit of the whole simplification envelope

    本文對當前國內外有關幾何模型的簡化演算法進行了分析和研究后，將三角形收縮簡化操作與包絡控制簡化誤差的方法相結合，利用一維線性搜索中的二分法改進了cohen提出的簡化包絡構造演算法；隨后又綜合簡化包絡的誤差控制方法和二次誤差矩陣的局部性誤差控制思想，提出了一種分解式包絡片的概念。
  4. The changing procedure includes : extending of the blade on the tip, extending of the blade on the root, expanding of the surfaces of the blade, extending of the blade on both sides, calculating the balance angle, changing the coordinate system, changing the data on the consideration of the shrinking and the reflecting of the blade material, etc. a blade surface is bended and distorted in three dimensions

    具體轉化過程包括：葉尖型面延伸、葉根型面延伸、葉身型面余量加放、進排氣邊余量加放、平衡角的計算、考慮葉片的收縮和回彈、坐標轉換等。完成了葉身實體造型。葉身型面是復雜三維彎扭曲面，造型上既有精度要求又有光順性要求。
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