How do I generate an elevation grid (i.e. DEM) from a file containing elevation contours or 3D points?
Using Global Mapper v5.08 and above, there is an easy way to do this. First, load the file(s) containing the contours and/or 3D points of interest into Global Mapper using either the File->Open Data File or File->Open Generic ASCII Text File menu command, depending on which is appropriate for the type of data that you are loading. Then, open the Overlay Control Center (under the Tools menu or press Alt+C) and select the layer(s) from which you want to generate the elevation grid. Finally, right click and select the Create Elevation Grid from 3D Vector Data option on the menu that pops up and away you go!
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