Sign of the z-coordinate of the cross
product of the Direction property with the segment vector.
TripleProductSign is 1 if the segment direction is to be on the left of
the constraint direction,
or -1 if the segment direction is to be on the right.
Namespace: Autodesk.Revit.DB.StructureAssembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.0.0.377)
Since: 2012