Right.
The contour lines (or other fixed points) are 2d with elevation (z) notations and I am placing the points in the correct xyz locations to create references for surfaces.
cheers,
eric

Hi Eric,

In the past I've done things like this by drawing the contour curves in MoI's "Top" view, in the XY plane (such that z = 0 for all the points of the contour). Then, in the "Side" or "Front" view, use the Move function (with a "perpendicular" constraint on the z axis) to move the entire contour up to the desired z elevation. Then repeat for the remaining contours.

Regards,
Steve

Hi Steve ...

Thanks. Yes this is the method I use also. It does work but can be quite a bit of work.

cheers,
eric