I am trying to make a 3d model from real map data using Blender. I have iso/contour-lines (curves) in which I can trace and convert to vector format which I then can import into Blender. Does anyone have any idea how to trick these curves into a 3d model in Blender? Just like you can with SketchUp (Sandbox–>From Contours tool - see http://www.youtube.com/watch?v=AvtgwfBe84c )? I want to avoid making a raster heightmap, because then I would have to blur/interpolate in Photoshop making things unaccurate.
Anyone? Thanks in advance!!