polygon map 中文意思是什麼
polygon map
解釋
多邊形地圖-
This paper discusses the polygon medial axis definition of gis and calculation geometry, and their main distinguishing feature, pointes out that the polygon medial axis should be the locu of the equal - distance points to two or more edges of the polygon ; analyzes the relevant different algorithm and cases in practice, and proposes the geometry means in theory relatively rigid and widely meeting the requirements in practice - dotted pair rank method and the map algebra polygon medial axis method, utilizes them to offer several polygon medial axis calculation examples
摘要比較了當前國內外gis中和計算幾何中關于多邊形中軸的定義，討論了它們的主要特點，指出多邊形中軸應是到兩個以上邊距離相等點的軌跡，並據此分析了相應的各種演算法和實際應用場合，提出了理論上較為嚴密、能夠廣泛滿足實際應用需要的幾何方法點對序列法和地圖代數多邊形中軸法。 -
And its spatial analytic functions such as overlay analysis and buffer analysis that can be used to extract multiple variables and information from geologic bodies organized in map layers in point, line or polygon shape are in favor of discovering ore - forming factors, summarizing regional metallogenic regularities and constructing geologic metallogenic models
以矢量數據結構為主，實現了對點、線、面地質體的gis空間分析功能，以便對多元矢量數據信息進行疊加分析和相關分析，發現和歸納研究區域的成礦規律，建立成礦地質模型。 -
Many functions such as field information map, contrastive map of yearly yield, prescription map, etc. can be made. in order to improve using accuracy of agricultural gps, by analyzing the error of point, polyline, polygon, several methods are produced such as arithmetic average value, least squares, adding control points, etc. their principles, features and limitations are also analyzed and discussed. the mathematic model of average error method included in adding control points is established
為了進一步提高農用gps的使用精度，研究了提高精度的方法，通過對點、線、面等誤差的分析，提出了應用算術平均值法、最小二乘法、加入控制點法等多種提高精度的方法，分析和討論了它們的原理、特點與應用局限性，並建立了加入控制點法中的誤差平差法的數學模型。 -
Results showed that, attribute data obtained by this way avoided deficiency of polygon overlap way, as a result, the logistical consistency between map data and attribute data reached over 90 % on average. database pivot precision was 0. 18mm, data quantity during manipulation was decreased greatly, data treatment was more convenient, computation velocity was boosted greatly. workload of map and table pretreatment and edition was mitigated on large scale, spatial data precision was increase
研究表明：用該方法獲得的屬性數據，避免了多邊形疊加方法的不足之處，能使圖形數據和屬性數據邏輯一致性平均達到90以上，數據庫點位精度達到0 . 18mm ，且操作中圖層數據量大大減小，數據處理更為方便，運算速度大為提高；減輕了圖表預處理和編輯的工作量，使空間數據精度提高。 -
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。 -
The surface detail or offsets simulated by a normal map are always relative to either the polygon it ' s projected on ( tangent space ) or the object ' s orientation ( object space ) or the world ( world space )
（通過法線貼圖計算出的表面細節和偏移是總是相對于多邊形的投影方向或是物體的自身軸向（物體空間）或是世界（世界空間）的。 ） -
Discussing the polygon union algorithms on the cgal and planar map platform. they are arrangement algorithm, incremental union algorithm and divide and conquer algorithm
基於cgal的平面圖，討論了多邊形合併演算法：排列合併演算法、增量合併演算法以及divide與conquer演算法。
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