Find host type for families in project browser but not placed

Revit
1

Hi All,

Does anybody know of a way to find the host type for families loaded into a project but not placed as instances?

I have tried to get parameter node and also clockwork package element host.

Neither of which produce any data for families not placed. What I am trying to do is filter a list so I can place instances by host type in an array of all loaded families.

Below is an image of a workflow that doesn’t work.

Thanks, Simon

42

2

Host is a family parameter. You’ll have to get the family element, not the family instance.

3

Hi Nick,

Thanks for the reply. It seems not all families have Host Type has a family parameter.

4

I think they all have the parameter but some families obviously don’t use a host.

5

Hi Nick,

What I am trying to do is to create an array of all the families in an project but I first need to know how the find the host type of each family. Do you know which nodes can select family types not family instances?

6

This is accessible in the document of the family.

7

This should do it.

image
image.png1695×389 73.9 KB

use this chart for what each number means in regards to hosting (I believe 0 means it does not require a host)
image

and the python script

import clr
# Import ToDSType(bool) extension method
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
from System.Collections.Generic import *
# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
#The inputs to this node will be stored as a list in the IN variable.
dataEnteringNode = IN
#unwrap all elements to use with API
items = UnwrapElement(IN[0])
typelist = list()
for i in items:
	try:
		typelist.append(i.OwnerFamily)
	except:
		typelist.append(List())
#Assign your output to the OUT variable
OUT = typelist
2 Likes
8

You don’t even need to access the family document, you can get it directly from the project definition.

image
image.png1353×353 72.1 KB

1 Like
9

Thanks Guys,

Thats exactly what I was looking for.

Arraying Families By Host Type #2.dyn (31.5 KB)

1 Like