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1)  contour tree
等高线树
1.
Scan-line based contour tree generation method;
基于扫描线的等高线树生成法
2.
Former contour trees have two defects when describing the topological relations of contour lines on the map.
在分析以往等高线树在表达地形图等高线拓扑空间关系时既没有考虑局部地形特征(鞍部、山头、洼地等)又不能很好表达等高线与所围区域之间的关系等缺陷的基础上,提出了增加地形特征等高线构建增量等高线树,以同时表达等高线之间、等高线与所围区域之间两种拓扑空间关系。
3.
This paper builds the spatial relationship of contour using contour tree, forms the similar Douglas conversion model by means of convex-hull and Douglas arithmetic, and then puts forward a new method of automatically identifying the ridge line and the valley floor line.
通过等高线树构建出各条等高线的空间关系,采用计算几何中的凸壳和Douglas算法,建立了似Douglas变换模型,提出了一种自动识别山脊线和谷底线的新方法。
2)  plane tree
等高树木
3)  height curve
树高曲线
1.
Six popular height curve equations were adopted to fit with height curve and the results were assessed.
运用Matlab软件,分别采用6个常用的树高曲线方程对树高曲线进行拟合,并对结果作了评价。
2.
As we all know,height curve play an important role in the forest management and forest yield regulation.
树高曲线在森林经营和收获调整中具有重要的作用。
4)  isohypse ['aisə,haips]
等压等高线
5)  contour lines
等高线
1.
Research on contour lines automatic processing in digital topographic survey;
数字地形测量等高线自动处理问题探讨
2.
The grid-fractionizing model based on the reconstructed contour lines;
基于重构等高线的格网细化模型
3.
The modeling and analysis of accuracy for LOD model based on reconstructed error of contour lines;
基于等高线重构误差的LOD建模及精度分析
6)  contour [英]['kɔntʊə(r)]  [美]['kɑntur]
等高线
1.
The research of draw contour by the general digital image to making use of the DLT algorithm;
利用DLT算法实现普通数码影像绘制等高线方法研究
2.
Contour paradox and modification of contour definition;
等高线悖论及等高线定义的修改
3.
Implementation and application of voltage contour based on Arc/info;
基于Arc/info的电压等高线的实现及应用
补充资料:等高线


等高线
level lines

等高线[kvd 11.写;yP。朋:瓜H邢j,G代笼n函数的 点集 L*={:‘D:G(:,z。)二又=常数},0簇几O充分大时,等高线是Jo代协n曲线;当又~+的时,相应的等高线趋于点z。,而对于减小又,它离开:。;若m>1,则对于又的某些值,等高线有自交点并且分解成不交的简单闭曲线;对于充分小的又,等高线由m条Jo攻坛n曲线组成,且当又~0时这些曲线的每一条趋于D的边界曲线之一. 在具有单连通余集的有界闭集B上用多项式作函数逼近的问题中,对B的边界点与B的余集的等高线之间的距离的估计起着重要的作用(见〔41,ts】). 对于由类S={f:f(:)二:十…,f在沙}
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