介绍了通过离散高程点，创建DEM，自动生成等高线的程序设计方法。
Establishment of DEM and program design method of isohypse produced automatically by discrete spot height are presented.
论述了一种基于大规模格网数据或离散高程点动态构建多分辨率地形模型的算法。
This paper presents a dynamic construction algorithm for the multi-resolution terrain model based on the large scale GRID data or discrete elevation data.
由离散高程点建立的三角网d TM，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。
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.
由离散高程点生成的TIN同样也具有相当大的数据量，这严重制约了TIN的分析、三维可视化等处理速度。
TIN composing discrete terrain points almost has the same amount of spatial data as it is and the response time of analysis and 3d visualization becomes too long to wait for.
由离散高程点生成的TIN同样也具有相当大的数据量，这严重制约了TIN的分析、三维可视化等处理速度。
TIN composing discrete terrain points almost has the same amount of spatial data as it is and the response time of analysis and 3d visualization becomes too long to wait for.
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