(see my comment below for answer) I have a program, rigorously tested (I thought) that uses:
Options options = new Options();
AnalyticalModel model = Source_Beam.GetAnalyticalModel() as AnalyticalModel; ;
Curve Curvy = model.GetCurve();
XYZ End1 = Curvy.GetEndPoint(0); XYZ End2 = Curvy.GetEndPoint(1);
This used to work just fine, but now using it in a project (with beams of the SAME family as used before), it fails when it tries to do the "Curvy.GetEndPoint(0)".
The error I get is "Revit encountered a System.NullReferenceException: Object reference not set to an instance of any object."
This is very weird, of course, because the Element Source_Beam is certainly a beam, from which it knows how to GetAnalyticalModel, and the compiler is happy to allow the "model.GetCurve()".
Note that I added the "as AnalyticalModel" after it first failed in an attempt to patch the error, since I saw an example on line that had added that code -- it fails with or without casting. And as I mentioned, this program had been use on a test project using exactly the same beam family.
Does anyone know if there is some setting in my real world project that disables abilities of GetAnalyticalModel, or perhaps a better method to simply get the defined start/end points of a beam?
