The ElementId of the element whose face the MassSurfaceData primarily refers to.
Namespace:
Autodesk.Revit.DB.Analysis
Assembly:
RevitAPI
(in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since:
2012
Syntax
Remarks
A MassSurfaceData may represent multiple faces from the same or different elements. This generally
only happens if the faces are geometrically fully coincident and logically represent
a single building object. "Interior walls" of the conceptual energy building model is a common
example where two different faces may be represented by a single MassSurfaceData.