In my last post on nested tags I went into detail on how to connect and nest a label object within a family in such a way as to allow it to behave similarly to a tag while providing some benefits that, in my opinion, enhance usability beyond the default tagging method employed by most Revit users.
One of the chief disadvantages of this method, as I stated in the previous blog post, is that each family instance which uses this method must have its angle parameter manually updated to orient the label to the sheet view. I also said that I’d write a script that would automate this process. I’m a fan of Python coding and utilize an excellent add-in call RevitPythonShell, in my scripting.
The following script targets Revit 2015 and will require some adjustment to maintain functionality in Revit 2016:
from math import * class OrientText(UI.IExternalCommand): def Execute(self): NestedTextElements = list(DB.FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_ElectricalFixtures).WherePasses(DB.ElementParameterFilter(DB.SharedParameterApplicableRule("TEXT ANGLE")))) t.Start("Nested Text Orienting") for a in NestedTextElements: angleadd = float() X = a.FacingOrientation.X Y = a.FacingOrientation.Y if X >= 0 and Y >= 0: angleadd = radians(90) elif X = 0: angleadd = radians(90) elif X < 0 and Y = 0 and Y < 0: angleadd = radians(270) if X != 0: baseangle = atan(abs(Y)/abs(X)) else: baseangle = radians(90) if a.FacingFlipped == True: if X < 0 and Y = 0 and Y >= 0: anglesign = 1 else: anglesign = -1 else: if X < 0 and Y = 0 and Y >= 0: anglesign = -1 else: anglesign = 1 textangle = a.GetParameters("TEXT ANGLE") textangle.Set(anglesign * (baseangle - angleadd)) t.Commit() return UI.Result.Succeeded OT = OrientText() OT.Execute()