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height points
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  高程点
     Triangle network DTM building with concrete height points can be used for various aspects, e.g. generating contours, building surface model and calculating earthwork, etc.
     由离散高程点建立的三角网 DTM,能够在多方面应用。 如生成等高线、建立地面模型、计算土方量等。
短句来源
     The paper introduces DEM quickly-building based on large-scale topographic maps. Through analysing the original data format, using the program to extract in batches height information from the dwg file based on the means of height points and contours, high accuracy data from the large-scale maps are extracted with fast speed and high efficiency.
     利用现有大比例尺地形图快速生成DEM,通过对原数据格式的分析,利用程序采用基于高程点和等高线2种方式从dwg文件中批量提取出高程信息,高效、快速地获取大比例尺地形图中高精度的高程数据;
短句来源
  “height points”译为未确定词的双语例句
     Triangle Network is formed with discrete height points and can pinpoint the triangle by application of the VBA technique.
     利用VBA技术实现对离散高程点的三角构网,快速定位三角形。
短句来源
  相似匹配句对
     ESTIMATE OF THE GEODETIC HEIGHT ACCURACY TO THE SIMULTANEOUSADJUSTMENT COMMON POINTS
     联合平差公共点大地高程精度估算
短句来源
     The creative points:
     本文创新点
短句来源
     of the singular points(?)
     规范势的奇异点出现在半子的位置和无穷远点。
短句来源
     Eternal Height
     永恒的高度
短句来源
     The first study of the Effect of the antenna height on the error of the GPS points
     天线高对GPS定位的影响初探
短句来源
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  height points
Gravity topographic corrections computed from a square grid of height points
      


Triangle network DTM building with concrete height points can be used for various aspects, e.g. generating contours, building surface model and calculating earthwork, etc. This paper introduces the applications of triangle network DTM in the earthwork computation of land leveling, river course excavating and embankment construction, and the volume computation of water areas.

由离散高程点建立的三角网 DTM,能够在多方面应用。如生成等高线、建立地面模型、计算土方量等。文中就其在地面整平 (切割面水平或有一定坡度 )、河道 (或水渠 )开挖及筑堤中的土方量计算和水域容积中的体积计算等方面介绍三角网 DTM的应用。

a grid method of producing three dimension landforms from digital contour using VRML is studied on the basis of experiment. This method is that the information of height point is drawn from digital contour according to the grid, the three dimension land forms is produced using the Elevation grid node. The program of producing the three dimension landforms from MIF/MID file form according to the method.

本文在实验的基础上,探讨了利用VRML技术从数字等高线生成三维地貌的一种格网方法。这种方 法从数字等高线中按格网提取高程点信息,并使用 VRMI。的ElevationGrid节点生成三维地貌。实验中按照这种方 法编写了从MIF/MID文件格式的数字等高线生成三维地貌的程序。

A method of semi\|automatically constructing road network for traffic analysis with GIS is developed. The method is based on spatial analysis of GIS and takes both vertical and horizontal alignments of road into account. After the manual digitizing of road links, this method adjusts the ends of links and inserts nodes at the ends automatically. Further it inserts height points between the vertexes on horizontal curves of links, and then overlaps height points with DEM to calculate the ups and downs...

A method of semi\|automatically constructing road network for traffic analysis with GIS is developed. The method is based on spatial analysis of GIS and takes both vertical and horizontal alignments of road into account. After the manual digitizing of road links, this method adjusts the ends of links and inserts nodes at the ends automatically. Further it inserts height points between the vertexes on horizontal curves of links, and then overlaps height points with DEM to calculate the ups and downs along the links, finally obtains the actual spatial length of links.

以GIS的空间计算功能和已有的空间数据为基础,同时考虑道路在水平面和纵断面上的空间特征,为交通需求模型开发出一种半自动的道路网的制作方法.在手工矢量化平面路段后,实现了自动调整路段端点和自动插入节点,在路段的平面曲线的顶点间插入高程点,并将高程点和DEM(digitalelevatedmodel)数据重叠计算路段的高程起伏,进一步得到了路段的实际地理长度.

 
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