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Kent1Cooper
en respuesta a: fatal.error


@fatal.error wrote:

... all of the 3D Polyline vertices must be in the same plane (coplanar). You can check it by converting that 3D Polyline into a Region. ....


Another way to check:

(vlax-curve-isPlanar (car (entsel)))

 

and pick on the 3D Polyline [or anything else that qualifies under the (vlax-curve...) functions].  It returns T if the object is planar, nil if not.

Kent Cooper, AIA