Change Family Category

Revit
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1

Hi all,

I am having a big headache trying to change the Revit family category. I hope you could help.
I am trying to change “Structural Foundation” into “Generic Model”, unfortunately, I received an error message.
image

I found the solution in forum:
1. Change the Category in Family file, save a copy of the file using a different name and load it into the project
2. Use the below Dynamo workflow after making the required changes to Family Types

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As you can see I got an error.
Please let me know if you could help me or know any solutions, I have thousands of elements to change…

2

Are there instances of that family type? Does Element.GetLocation work?

1 Like
3

HI, I don’t really understand what are you asking, as I am not familiar with dynamo. Could you please clarify your questions?

4

Can you change the category inside in Revit ? Structural foundation to Generic Model.

5

Hi, you mean in the family? No, it is not possible. See the error message below.

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6

can you share the family?

7

Yes, of course.

Please see attached. EWS01_Bracket-H-FrontOfSlab.rfa (336 KB)

8

this the only family you want to change( “Structural Foundation” into “Generic Model” ,)? or more you have like this?

find the converted file.

GN .rvt (2.0 MB)

9
1 Like
10

Hi @_Vijay, I am sorry for my late reply, I had an issue with installing the Orchid Package.
I have tried your proposal and I don’t receive any error message, but the family category is not changed in the project, it stayed the same.

I attached image, could you please let me know if I understood it correctly. First I need to get the “family-type” of the element I want to change the category. Second, I set up that I want to change from Structural Foundation into Generic Models? Is that correct?

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11

Overall I have like 25 different families, and even more types. In total it is about 3000 instances in the project… I would appreciate anyone help trying to help me.

12

Did you read the full conversation on the attached link?

you need to open the family reloads again to reflation changes. that can be also automated.

13

Hi,

It doesn’t work. I have checked the link and the discussion.

Does it seem OK for you, see image below, that to change family type (8 instances)? This is correct, I have in the project 8 objects in this family type.
But then, I have in dynamo 22 families changed in the generic model…I can’t understand this.

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14

I tried another family and here is the same issue in the second part of node

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15

Hello
Here is a solution with Python

image

import clr
import sys
import System
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument

class FamilyOption(IFamilyLoadOptions) :
	def OnFamilyFound(self, familyInUse, overwriteParameterValues):
		overwriteParameterValues.Value = False
		return True

	def OnSharedFamilyFound(self, sharedFamily, familyInUse, source, overwriteParameterValues):
		overwriteParameterValues.Value = False
		source.Value = FamilySource.Project
		return True	

toDoList = lambda x : x if hasattr(x, '__iter__') else [x]
FamTypes = toDoList(UnwrapElement(IN[0]))
catToSet = UnwrapElement(IN[1])
out = []

opts = FamilyOption()
for familySymb in FamTypes:
	TransactionManager.Instance.ForceCloseTransaction()
	family = familySymb.Family
	famDoc =  doc.EditFamily(family)
	result = "Failed"
	ownerFamily = famDoc.OwnerFamily 
	if ownerFamily.IsAppropriateCategoryId(catToSet.Id):
		ownerFamily.FamilyCategoryId = catToSet.Id
		result = "Success"
	out.append(result)	
	famInProj = famDoc.LoadFamily(doc, opts)	
	famDoc.Close(False)	
	famDoc.Dispose()
	
OUT = out

`
Please note that such a change of category (structure to model generic) has an impact on existing instances

`

8 Likes
16

Thank you so much!

1 Like
17

Trying to use this script in Revit 2023, I get an error on the line “opts = FamilyOption()” (37) that says:
“Type Error: Interface takes exacly one argument”

¿Any idea how to fix that and why is happening? Thank you

18

Hi, read this similar topic

1 Like
19

I want to change revit family category, basically family has category Generic Mode and it have to in this category, but during placing this family I have to rotate family using different axes, I can’t rotate Generic Model family so my ide is that I will change temporary category to Pipe Accessories and after all rotating operation I will back to Generic Model. I made something like in the print screen below, I don’t have any error, but node that should change category does not doing this. What I doing wrong?

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