等高线

刚好在450英尺的等高线之下有3个缓坡。

There were three moderate climbs to just below the 450 feet contour .

顺等高线栽植，无论做或不做梯田对于保持水土都能有效

Contour planning with or without terracing is effective in conserving both soil and moisture .

无疑，你们熟悉地理上的等值线地图，它示出等高线。

No doubt you are familiar with geographical contour maps , which show lines of constant altitude .

基于直线与B样条曲线求交算法加密等高线图

Densifying Contour Map Based on Intersecting Algorithm of Line and B-spline Curve

利用B样条实现基于等高线的三维地形图

Constructing 3-D Visualization from Contour with B-spline

基于等高线图与小波变换的3D地形匹配算法研究

3D terrain matching algorithm tased on iso-elevation-contour map and normalized wavelet description

RegionManager在等高线绘制中的应用

Application of Region Manager in contour drawing

而Agent技术的出现为等高线与河流的协同综合研究提供了新的思路。

The emergence of Agent technology provided new ideas to collaborative generalization of contours and rivers .

基于等高线构建TIN模型的平三角形修正算法

Flat Triangles Correct Algorithm to Create TIN Based on Contours

相比较而言，在构建TIN模型中，样条插值方法在等高线内插分析中具有更好的效果；

By comparison , the spline interpolation method on contours has better effects ;

从规则高程格网中提取等高线的算法是机助制图和GIS中非常重要的组成部分。

The extraction of contour lines from Grid DEM is a primary function in computer-aided cartography and GIS .

利用B样条曲线将等高线光栅图矢量化，根据B样条曲线插值公式得到等高线与纵横网格线的交点；

Transforming raster contour into vector one with B-spline , and getting intersect points of contour and grid line with interpolation method .

AutoCAD环境下数字高程模型的建立和等高线的自动绘制

DEM Building and Automatic Contour Line Tracing in AutoCAD Environment

采用ActiveX技术实现基于VISUALLISP的等高线快速接边

Fast sheeting for the contour based on Visual LISP of ActiveX technology

基于等高线膨胀生成规则格网DEM的算法

The Algorithm for Generating Regular Square Grid DEM by Contour Dilation

基于等高线数据建立高质量DEM

Constructing a Quality DEM Base on the Contour Lines Data

等高线节点密度对DEM精度的影响

Effect of the Node Density of Contour on the Accuracy of DEM

基于格网DEM的自适应等高线内插方法

An adaptive algorithm of contour interpolation based on grid DEM

基于等高线生成DEM的内插算法及其精度分析

Research on contour interpolation and accuracy assessment of DEM

一种基于等高线生成DEM的方法

The method of making DEM Based on contour line

基于等高线形状分析的LIDAR建筑物提取

Building Extraction from LIDAR Data Based on Shape Analysis of Contours

利用AUTOCADVBA获取等高线上高程点的方法

The Method for Obtaining Elevation Points from the Contour Lines Using AutoCAD VBA

根据等高线建立数字高程模型DEM建模方案的分析

Establishing DEM from Contours Analysis of DEM Modeling

地图的自动综合已成为了影响GIS发展的关键原因之一，其中等高线的综合又是最复杂的任务。

Cartographic generalization has been one of key reasons to affect the development of GIS , contour generalization becomes the most complex task .

基于自动方法的等高线高程标定和检验是地图自动化输入，数字高程模型（DEM）生成的重要手段。

Automated contour labeling is a useful tool for automatic map input and generating DEM .

应用等高线构建Delaunay三角网算法的研究与实现

Research and Realization of Delaunay Triangulation Algorithm Based on Contour Lines

Surfer软件借助AutoCAD实现计算机绘制煤层顶底板等高线图

Drawing the Contour of Coal Floor by Surfer Software Aided by AutoCAD

图形法运用可视化方法描绘了房价场的3D可视化模型、等高线图和梯度场线图。

One is the graphical representation by the visualization method , including the 3D mesh representation , the contour line graph and the field line graph .

基于CAD的等高线遇地物自动断开新方法研究

A Study of the New Method for Automatic Breaking-off the AutoCAD - based Contour at the Point Where A Ground Object is in the Way

一种基于约束边Delaunay三角网的等高线内插方法

A Algorithm of Contour Interpolation Based on Constraint Delaunay Triangulation