I have a polyline shape file which is a fault trace on earth's surface.
I want to extrude this into a 3-D plane at a certain angle (which is dip angle of the fault).
However, the extruded plane should start somewhere below the ground surface but not from the line itself.
I want to get it done in ArcGIS.
I am coding in VB.NET language
I am adding a rough 2-D representation to understand it better