I am trying to model a topography surface without countours. I first loft some contours so I get my first curvy surface but then some contours are flattened. So I am trying to make the curvy surface to become planer between the certain contours.
As I show in the image
the planar surface is the grey one. and the other curvy surface is the green one. I want beetween the black curves green one’s surface to be a planar surface but I want all of them seem a smooth surface. I want them to blend each other.
I will then send this surface to 3d printing.
How can I model it?