tinvs:getdepthorelevation

(tinvs:getdepthorelevation tinEname)

Returns the associated BuildingElement type as string, or NIL if the specified entity is not classified as a BuildingElement.

Arguments	tinEname (ename or vla-object) the TinVolumeSurface entity
Return	(double) the reference height, or NIL
Example
Remarks	see (tinvs:volumesurfacetype) and Create Functions