I'm working on a proposed entry statement sign, and need to make sure that the sign will look good in location. I have a topo map, and want to know the easiest way of modelling slope.

I plan to insert the image, scaled correctly, on a sketch in a part.

Create planes at 100mm increments

Sketch contours on planes, using splines

Use sketches to create a lofted surface

Anyone know an easier way?