triangulated irregular network 中文意思是什麼
triangulated irregular network
解釋
不規則三角網-
Study of triangulated irregular network andinterpolating terra in elevation in railway location
鐵路線路三角網數模及地面高程內插系統研究 -
Thirdly, it utilizes line tracking and douglas - peucker line - simplification algorithm to realize the raster - to - vector conversion. a triangulated irregular network ( tin ) is constructed based on vector data, and dem point - array data is computed by interpolating grid on tin
第三，使用輪廓線跟蹤演算法和dpl多邊形近似方法實現等高線數據的矢量轉換;並基於等高線矢量數據建立不規則三角網，再內插格網生成dem點陣數據。 -
This paper is about of arithmetic studys of triangulated irregular network which is published in abroad and home, and alter an arithmetic of delaunay triangulation using a uniform grid which was present by tsung - pao fang and les a. piegl of university of south florida. in this paper i present implementation details, test, examples of the arithmetic, moreover. a triangulated irregular network model of is built for geochemistry
本文在前人研究的基礎上，探討和研究了國內外的不規則三角網生成演算法，通過理論和實驗選擇了tsung - paofang和les . piegl提出的delaunay三角網生成演算法作為數字地面模型的核心演算法，並對該演算法進行了改進和優化。 -
On the basis of the geochemistry digital model arithmetic of triangulated irregular network, i change the arithmetic of auto - tracing isoline. in process of auto - tracing isoline, the proplem of tracing - crossand and mini - heave was resolved. the isoline is smoothec by linear overlap algorithm. in addtion, the model can build other unit of map such as extramum point, polygon
在不規則三角網數字模型的基礎上，改進並實現了等值線生成演算法，解決了等值線生成中的分叉問題，解決了等值線上的小凸起問題；對等值線採用線性迭代演算法進行了圓滑處理；提出延伸三角網演算法，用於實現了開等值線的閉合；生成用於地學分析的區域圖元，等值線圖元，極值點圖元等。 -
After the paper sufficiently considered creation algorithmic of triangulated irregular network in time and space and analyzed three creation algorithms of tin - divide - conquer, triangulation growth, incremental insertion, the paper adopts to a new algorithm that takes advantages of divide - conquer and triangulation growth. it can create tin quickly. the paper also uses break lines, terrain feature lines, building borderlines to be restriction condition and creates triangulated irregular network based on restriction
綜合考慮不規則三角網生成演算法的時間和空間性能，分析了常用的三種tin生成演算法：分割-歸並法、三角網生長法和逐點插入法，筆者採用分割-歸並法與三角網生長法相結合的演算法，快速生成了tin ，並以斷裂線、地性線、建築物邊界為約束條件，最終生成具有約束的不規則三角網。 -
The author introduces arithmetic from triangulated irregular network to regular square grid dem because the latter apply abroad than the former in fact
考慮到規則格網dem在實際應用中比tin更加廣泛，介紹了從tin到規則格網dem的內插演算法。 -
According to geochemistry data and geochemistry work, i build a geochemistry digital model of triangulated irregular network, which can auto trace multi - work area and multi - hole by judging limited length
建立了適用於地球化學數據處理的不規則三角網數字模型，即多工區，多「洞」的自動生成不規則三角網模型。 -
This paper uses digital line graphs for original data. after author bases on large - scale relief map " feature and analyses the feature, data structure and creation algorithms of two main representation shape ? triangulated irregular network and regular grid, author provides a kind of method that large - scale dem is created from tin which is created from large - scale dlg
本文以數字線化圖為原始數據，針對大比例地形圖的特點，在分析了數字高程模型的兩種主要表現形式? ?不規則三角網tin和規則格網grid的特點、數據結構、生成演算法的基礎上，考慮到大比例尺數字高程模型能最大限度符合實際地形特點，提出了一種從大比例尺數字線化圖dlg生成不規則三角網tin ，再由不規則三角網內插生成大比例尺數字高程模型grid的方法。 -
In the process of developing the system, the paper discusses in - depth some key technologies such as spatial index of triangulated irregular network ( tin ) data, the integration of multi - source data, the process of dem & texture data, the application of lod in real - time animation, the technique of clipping in 3d landscape, the stereo synchronizati on, the multithreading
在系統開發過程中深入研究了幾項關鍵技術：三角網索引、多源數據的集成、數字高程模型與紋理數據的處理、實時動畫中的lod 、三維景觀中的裁剪、立體同步以及多線程。
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