Re: Family Instance Orientation

Finally managed to get results that seems to work (more testing needed). First of all I had a mistake in my code. At some point I tried to convert radians to degrees, however the supplied value was already in degrees, causing unexpected results 

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Looking through lot of information, especially on the building coder website () I finally ended up with something that seems to work.

Dim Trf As DB.Transform = ElementListInstance.GetTransform()
Dim basX As XYZ = Trf.BasisX
Dim basZ As XYZ = Trf.BasisZ

Dim vectorTran As XYZ = Trf.OfVector(Trf.BasisX)
Dim ObjectRotation As Double = Trf.BasisX.AngleOnPlaneTo(vectorTran, Trf.BasisZ) * (180 / Math.PI)

Knowing the angle of the object allowed me to create a 3DView on a position relative to the selected object.