I have a geological setting where I would like to add a lithology to an existing map. I already have the 3D polylines from my geological map and the DEM I now want to add another polyline between two outcrops that occurs like 20 m below one polyline and follows the topography.
Picture one shows the 3D model and two the 2D one. The black line is what i would like to create automated with ArcGIS Desktop.
Anyone an idea how to do that?