DEM

Acquiring, Converting, and Using DEM Downloads in Civil 3D

by Donnie Gladfelter on March 11, 2009

in Civil 3D 2008,Civil 3D 2009

While importing surface data from Google Earth is probably the easiest way to get some conceptual topographical data into your drawings, DEM’s have to be a close second.  For the uninitiated, DEM’s or Digital Elevation Models could be described as a surface whose data is organized in a grid.  This is fundamentally different than DTM’s [...]

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Creating a DEM with Civil 3D

by Donnie Gladfelter on June 23, 2008

in Civil 3D

One of my users called me the other day asking if there was any way to convert our DTM surface into a DEM surface, as a client had called them asking if it was possible.  The short answer to the question was yes, but let me review the fundamental differences in these formats before getting [...]

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