tin:elevationatpoint


(tin:elevationatpoint  tinEname  point)

This function returns the Z elevation of the tinEname TinSurface entity at the specified point..

Arguments

tinEname  (ename or vla-object)  the TinSurface entity to query
point  (2d/3d point list)  the point to be searched; Z elevation is ignored

Return

(double)  the Z elevation of the TinSurface at specified point, or NIL

Example

(tin:elevationAtPoint tin '(10 80))  22.34864

Remarks



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