topic Re: Runtime Error when creating a FamilyInstance in Revit API Forum

Runtime Error when creating a FamilyInstance

Anonymous — Sun, 22 Sep 2013 23:58:40 GMT

Hello

I am creating a FamilyInstance that is very similar to a pipe, ie, is a cylinder with a start and end point. I am using the function NewFamilyInstance(Line, FamilySymbol, View).

My Problem: When I create my FamilyInstance using the aforementioned function I get a runtime error: "This method is only applicable for the curve based family".

Some background information; I am running my addin in revit 2013 and my addin is compiled using Revit 2013 DLL's (RevitAPI & RevitAPIUI). The family/family symbol I am loading is pretty much the following family that has been expanded: C:\ProgramData\Autodesk\RVT 2014\Libraries\Australia\Structural Framing\Steel\Robobat Specific\Pipes.rfa

Do you know what is going wrong and how I can successfully create my FamilyInstance (that is very similar to a pipe). Note I need to specify the FamilyInstances's strart and end points which is why I am using this specific NewFamilyInstance function version.

Line pipeGeom       = doc.Application.Create.NewLine(strt, end, false);
FamilyInstance pipe = doc.Create.NewFamilyInstance(pipeGeom, pipeSymbol, uiDoc.ActiveView); // Error occurs here

Re: Runtime Error when creating a FamilyInstance

augusto.goncalves — Mon, 23 Sep 2013 19:10:17 GMT

Just checking: was the family created with a 'line based' template? Such as 'Metric Generic Model line based.rft'?

Re: Runtime Error when creating a FamilyInstance

Anonymous — Mon, 23 Sep 2013 22:38:20 GMT

Thanks for your reply 🙂 The family I am using is actually one that is there when I install Revit. So the family hasn't been created or altered by myself. I'm not sure how to determine what template a family uses/used though?

The family is located at: C:\ProgramData\Autodesk\RVT 2013\Libraries\Australia\Structure\Structural\Framing\Steel\Robobat Specific\pipes.rfa

Re: Runtime Error when creating a FamilyInstance

augusto.goncalves — Thu, 26 Sep 2013 21:10:16 GMT

When you open the .rfa, is there one Reference Line where the family starts?

Or when you insert, the Element.Location property is of type LocationCurve?