Retrieve Project Information Parameters for linked elements

Revit
,
1

Hi everyone.
This is my issue: I am retrieving a list of elements from linked files, and also the list of Link Instances.
What I want to achieve is to get a list of the elements related with a specific parameter from each Link ‘Project Information’ parameters, as seen in the image attached.
Also you can see the code I wrote to get the specified parameter from ‘Project Information’.
Is there a way to relate the elements with this parameters the same way you do it with revit Schedules?

Project Information
Project Information1123×720 142 KB

2

It would be much easier to get the document directly from the element and then the project info from that document.

3

@Nick_Boyts Is it possible to get the document directly from an element?. It doesn’t seem to be possible if you read into RevitAPI docs.

4

Give this a try: https://www.revitapidocs.com/2020/9e530d25-61ca-3899-a531-cbcfd994358d.htm

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5

@Nick_Boyts Oh I was looking into methods, not properties. That was really easy and finally worked fine for me. So, now I got document from the elements and then ‘Project Information’ so that I was able to iterate over it and get the parameter I was looking for.
Thank you a lot!

6

Hi David, can you please show us how did you do it. I am trying to do the same thing. Thanks!

7

Hi @arellan .
Sure. This is the Python code that I used to get that parameter:

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

clr.AddReference('DSCoreNodes')
from DSCore import List

elements = IN[0]

documents = []
for element in elements:
	document = UnwrapElement(element).Document
	documents.append(document)
	
information = []
for docu in documents:
	unwrap = UnwrapElement(docu)
	info = FilteredElementCollector(unwrap).OfCategory(BuiltInCategory.OST_ProjectInformation).ToElements()
	information.append(info)

result = List.Flatten(information, 1)

parameters = []

for res in result:
	try:
		building = UnwrapElement(res).LookupParameter('Building').AsString()
		if building :
			parameters.append(building )
		else: 
			parameters.append('No Information')
	except:
		parameters.append('No Information')

		
OUT = parameters
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8

Thank you so much, David for sharing that! It makes so much sense now.

1 Like