I've been trying to figure out a way to use MoI to create a terrain surface using traced ground contours from a map. It seemed like it would be a simple matter of tracing the contours with curves and then lofting them, but my results so far are not what I need. I've tried just about every combination of settings in the Loft Options but I never get a nice straight, smooth interpolation between each contour.

The attached image (and accompanying 3DM) show the problems. The most obvious views are the front and side.

Has anyone else managed to do this sort of thing with MoI? Am I even using the correct tool?

Thanks in advance for any help.

Cheers!