GiD_Info IsPointInside

GiD_Info IsPointInside ?-no_model? ?-tolerance <tol>? Line|Surface|Volume <num> {<x> <y> <z>}

This commands returns 1 if the point {x y z} is inside the specified volume/surface/curve, or 0 if lies outside.

If -no_model flag is specified then entities are stored in a special container, it doesn't belong to the model