You can select elements of the 3d mesh and "land" points of their surfaces on the surface of other elements.

With the same command, elements of the "Beam" type are landed by both points with an inclination along a curved surface.

Calling:

ac_request("do_surface_landing", int iLandList, int iLandingElemsList, double doffset);


Here:

iLandList - number of the internal list of elements where the elements defining the landing surface are selected.

iLandingElemsList - number of the internal list of elements where the elements to be landed are selected.

doffset - height above the ground at which to stop landing.