When we worked up our procedure for importing Lidar into Civil3D a couple months ago, we realized there were way too many steps and way too many hoops to jump through.  Hoops preparing the data, through Recap to prepare a RCP/RCS, through Civil3D creating a point cloud, and finally creating the surface.  Highly trained professionals have more important things to do with their time than spend it like a well trained circus animal jumping through hoops, so we did something about it.

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Like many things in Civil3D, they can be done but how it’s done isn’t so obvious.  In the process of adding a DEM surface to your drawing you may notice that you can’t project it to another coordinate system (that of the drawing).  Here is a step-by-step procedure including assigning a coordinate system to the current drawing.

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