Example of Spot Elevation Node?

Hi there,

Anyone guide me how to use spot elevation by floor plan at point? im trying below but didnt work. Thanks

Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed. 
Traceback (most recent call last):
  File "<string>", line 29, in <module>
Exception: The input argument "view3d" of function `anonymous-namespace'::ReferenceIntersector_constructor or one item in the collection is null at line 68 of file d:\ship\2018_px64\source\api\apidbapi\gensrc\APIReferenceIntersectorProxy.cpp.
Parameter name: view3d

getting this error


It looks like your active view is a 3D view and the node only works with a floorplan.

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i tried it with floor plan but also didnt work

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