an article, the use of topographical maps DWG format established City DEM using VBA programming language. Elevation extract discrete points and elevation Note, and elevation and elevation point Note matching storage right contour effective discrete, Extracting the elevation contour information. and after extraction of elevation data to the ArcGIS 3D visualization of Human-Computer Interaction way removed gross error, the last generation DEM.

Packet : 97288412dwganddem.rar filelist
利用DWG格式地形图建立城市DEM.CAJ

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