GetTotalTransform method in walltypes

Developers
1

Hello Y’all, I have the following script

# Copyright(c) 2017, Dimitar Venkov
# @5devene, dimitar.ven@gmail.com
# www.badmonkeys.net

import clr

clr.AddReference("RevitAPIUI")
from  Autodesk.Revit.UI import *

clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)

clr.AddReference("RevitAPI")
from Autodesk.Revit.DB import RevitLinkInstance, FamilyInstance

def output1(x):
	if len(x) == 1: return x[0]
	else : return x

sel1 = uidoc.Selection
ot1 = Selection.ObjectType.Element
ot2 = Selection.ObjectType.PointOnElement
li_ref = sel1.PickObject(ot1, "Select a link instance first.")
link1 = doc.GetElement(li_ref.ElementId)
if isinstance(link1, RevitLinkInstance):
	tf1 = link1.GetTotalTransform()
	face_ref = sel1.PickObject(ot2, "Pick a face.")
	linkDoc = link1.GetLinkDocument()
	el1 = linkDoc.GetElement(face_ref.LinkedElementId)
	face_ref2 = face_ref.CreateReferenceInLink()
	sf0 = el1.GetGeometryObjectFromReference(face_ref2)
	if isinstance(el1, FamilyInstance):
		tf1 *= el1.GetTotalTransform()
	sf1 = sf0.Convert(face_ref2, tf1.ToCoordinateSystem(True) )
	for s in sf1:	
		s.Tags.AddTag("RevitFaceReference", face_ref)
	OUT = output1(sf1), face_ref.GlobalPoint.ToPoint(True), link1
else:
	tf1 = link1.GetTotalTransform()
	face_ref = sel1.PickObject(ot2, "Pick a face.")
	el1 = link1
	if isinstance(el1, FamilyInstance):
		tf1 *= el1.GetTotalTransform()
	sf0 = link1.GetGeometryObjectFromReference(face_ref)
	sf1 = sf0.Convert(face_ref, tf1.ToCoordinateSystem(True))
	OUT = output1(sf1), face_ref.GlobalPoint.ToPoint(True), link1

(Thanks dimitar for the awesome script btw) which gets the transformation of a element and use it as the basis of operation to rotate my view orthogonally to the plan i select… But it doesn’t work with “system types”, like walltypes, ceilings, etc… cause they don’t have the method “GetTotalTransform”, which i’m guessing by now only apply to model in-place elements… I looked throught the revitapidocs.com in search of a similar method for walltypes, but i can’t seen to find one.

This is my first try messing around with the API, so any help is very helpful

2

Transform, generally, is for family instances as their geometric characteristics are defined in a Family and transformed when instantiated in projects (said differently, Transform records how the geometry in a project document is different from what is created in the family document). I do not believe this applies to system families as their definition of location (or sketch), rotation, etc. is setup within the project document at the instance level.

1 Like
3

Hmmm, i get what you mean… So, do you think the orientation method is my way to go here?