triangle mesh 中文意思是什麼
triangle mesh
解釋
三角網-
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。 -
It is natural to extend this algorithm to 3d triangular mesh and output the texture coordinates for each triangle vertex
該演算法可以自然擴展到三維三角網格，以三角面片作為合成單元，合成后直接輸出每個頂點的紋理坐標。 -
Triangle - mesh wire
三角孔鉛絲 -
An efficient rejection test for ray triangle mesh intersection
一種用於光線與三角形網格求交運算的有效剔除演算法 -
The algorithm builds voxel between neighboring slices of volume data, then gets density of a certain substance by experience. after setting threshold for surface of the substance which we want to get, and computing triangle mould of every voxel cube by use of linearity interpolation, the algorithm represents the surface of the substance as the form of triangle mesh
該演算法通過在相鄰的體數據切片之間構建體素，根據經驗獲得某一種物質的密度值，設定待求物質表面的閾值，利用線性插值求出每一個立方體體素的三角剖分的構型，進而將整個物體表面以三角型網格的形式表示出來。 -
Above all, the system has some advantages such as high compute precision, high speed and suited for large structure analysis. during the process of the system researching, a new mesh approach based on advancing front technique for triangle elements was studied. a practical method of generating hexahedron mesh for cellular element method through transfering lines into volumes was worked out
在軟體研製過程中，提出一種基於前沿生成法的速度快、穩定性好的平面元胞元網格自動生成方法和三維六面體網格的線段轉換法;根據元胞元模型的特點，提出一種穩健性較好的三維元胞元模型消隱方法;通過對應力圖生成技術的研究，提出一種對等值線、色帶圖、濃淡圖均適用的應力圖快速生成演算法。 -
Advanced front method is used to automatically create triangle mesh. at the same time, this paper finishes such works as improving the arithmetic, optimizing and checking meshes
接著採用波前推進法（ afm ）自動生成三角形網格，並進行演算法改進、網格優化和網格檢查。 -
On the assumption of ignoring the distortion of thickness, this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time, presents the equal area developing arithmetic of quadrangle - triangle. on the virtual geometric symmetry axis, we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell, determines the developed shape of internal structure in plane utilizing point - to - point mapping theory. furthermore, we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells
本文結合型號研製中小曲率機翼整體壁板類零件坯料展開課題，基於板料厚向變形忽略不計的先驗假設，首創混合四邊形-三角形網格等面積展開的幾何模擬法確定壁板類零件毛坯外形，給出了混合四邊形-三角形網格等面積展開演算法；提出了虛擬分割線的概念，採用虛擬幾何對稱軸，給出了規整四邊形單元展開基帶上結點的計算方法；採用映射原理和求交演算法確定了壁板內部結構信息的展開定位。 -
This paper also analyzed some key problems in 3d triangulation from scattered points. new determining principles for the relationship of point and line in space and for convexo - concave vertices of space polygon is discussed which corrected the previous method and can be applied in space triangle mesh. at the end of this papar, the future research areaes of triangluation from 3d scattered points are demonstrated
本文還分析了三維空間直接三角剖分所要解決的一些關鍵問題，進而提出了空間中點與直線位置關系判別的新方法及空間多邊形頂點凹凸性判別的新方法，修正了以往演算法在應用上的局限性，使之能夠適用於復雜網格多邊形邊界。 -
First, all topological features in the original mesh model are stored, then sort all the edges according to the importance of vertex, finally delete the edges which lead to sliver triangle and which lead to the discontinuity of triangle normal vectors
該演算法首先保存原始網格模型中所有頂點的拓撲特徵，然後根據頂點的重要度對所有的邊進行排序，通過檢查是否產生狹長三角形和三角片的法矢是否連續來判斷邊是否被刪除。 -
Presents an algorithm of triangle mesh generation of disperse data points based on dynamic circles
提出了一種基於動態圓的散亂數據點的三角網格生成演算法。 -
It processes these data that gathered from the optical measurement system or other 3d measuring apparatus directly without the preprocessing of wiping off noise points. user can define the resolution of the exported triangle mesh through setting a few parameters. it still can process other information of the points of cloud except for the x, y, z coordinates, such as color information ( rgb )
它可以直接處理來源於光學測量系統或者其他的一些三維測量系統的數據，而不用經過去除雜點的數據預處理過程；輸出三角形網格的解析度可以由用戶通過設置一些參數來進行控制；這個演算法還可以處理一些來自於點雲的點所帶的除了（ x ， y ， z ）坐標以外的一些信息，比如說顏色信息（ rgb ）等；此外我們還提供了幾種可以實現的紋理映射（ texturemapping ）的思路。 -
Triangle mesh models have been established as the most general and flexible schemes to represent complex surface models in the area of reverse engineering ( re ), rapid prototyping manufacturing ( rpm ), numerical control ( nc ) programming, 3d animation, etc. but the models reconstructed from real - world data may contain unavoidable noise and many narrow triangles, so the models must be optimized and modulated under given tolerances
三角網格模型是逆向工程、快速原型製造、數控加工編程、三維動畫等技術中常用的模型表示方法，模型的質量直接影響到產品的質量，尤其在逆向工程中，直接通過測量數據得到高質量的網格模型幾乎是不可能的。因為，測量數據中不可避免地存在各種噪聲和擾動，因此在滿足幾何精度要求的前提下，對網格模型進行優化調整，以提高模型質量就十分必要。 -
In view of above problems, this article studies the key technology of mass data processing system, and design a system framework point to the triangle mesh data, which is made up of millions series of triangles. this framework resolves the problem that a computer could not read all the mass data into its storage and process them through data block partion, and also reduces the space that mass data occupies in hd by data compression
針對以上問題，本文研究了海量數據處理系統的關鍵技術，針對由百萬級數量的三角形構成的三角網格數據，設計了一個系統框架，通過數據分塊解決計算機不能把海量數據全部讀入內存進行處理的問題，通過數據壓縮解決海量數據佔用大量硬盤空間的問題。 -
Using fluid analyze software, the 3d turbulent flow is stimulated based on navier - stokes equations and k - model. the turbulent flow through axial flow pump impeller is simulated by using the non - uniform triangle mesh system and the finite volume method. calculated results are presented at the design operating condition for the impeller in detail, which give a valuable reference to improve the performance of the impeller
最後，應用cfx流體分析軟體，基於n - s方程和標準-紊流模型，採用非結構化網格技術，用聯立求解各變量代數方程組的方法對設計工況下的軸流泵葉輪內部的三維紊流場進行了詳細的數值計算與分析，並預測其性能。 -
By an imaginary uniform sampling on the original triangle mesh, our algorithm makes the 3d point set using in icp algorithm not only approximatively uniformly distribute in the measured object surface, but also possess of more information of the object surface than classical icp algorithm
通過在三角形網格上按面積均勻分佈的假想抽樣，在沒有明顯增加計算復雜度的情況下，使得代入icp演算法的3d點集，不僅是近似均勻地分佈在物體表面上，而且更加充分地反映了被測物體的表面信息。 -
But the triangle mesh data measured is massive, and usually up to millions even ten millions of triangular patches, and this occupies too much storage and hd space of computer
然而測量得到的三角網格數據是海量的，經常達到百萬甚至上千萬個三角面片，大量佔用計算機的內存及硬盤資源。 -
Uniform single and multi resolution representations of the triangle mesh
三角網格的統一單解析度與多解析度表示方法 -
A method of n - sided region partitioning based on data segmentation for triangle mesh is researched
研究了三角網格模型的n邊界區域生成方法。 -
Using these algorithms, the programs are efficient and the obtained graphics of triangle mesh are of good quality, which meet our requirements quite well
使用這些演算法計算速度快，得到的三角形網格的圖象質量高，完全可以滿足我們的要求。
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