Add ProjectElementID, how?

Developers
1

Hello Dynaos,

I try to for each element my own ID. I have no erros, but no satisfied result?
I want also rerun the script, in case there are new Elements.
So how can i add a unique ID to a unique Element… …like Key and value

import sys
import clr

import random, string

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


Elements = IN[0]
personalID = []


def Code(x):
		x = ''.join(random.sample(string.ascii_letters + string.digits, k=16))
		return x

for i in Elements:
	personalID.append(Code(i))
	
OUT = personalID

2022-04-07_09h42_47
2022-04-07_09h42_471591×594 58.9 KB

KR

Andreas

2

Hi,
here, a solution to make a Guid from UniqueId Revit property

image
image1389×710 85 KB 

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

uuid_elem = IN[0]

from System.Security.Cryptography import MD5
from System.Text import Encoding

out = []
# simple test in for loop to check if result is same
for i in range(10):
	# make guid from UniqueId
	md5 = MD5.Create()
	hash = md5.ComputeHash(Encoding.Default.GetBytes(uuid_elem))
	result = System.Guid(hash)
	md5.Dispose()
	out.append(result.ToString())
OUT = out
2 Likes
3

That means “recode” the unique revit ID?

does it also work with Revit.ID ?

2022-04-07_13h11_31
2022-04-07_13h11_31744×727 49.6 KB

the length should be not over 45 an ideal case would be 16

4

No, it’s just generated a new Guid from the UniqueId (string)

yes but if you work on a central model the ElementId can change, the UniqueId is more stable

here the code with ElementId as input

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

elemId = IN[0]

from System.Security.Cryptography import MD5
from System.Text import Encoding

out = []

# make guid from Id
md5 = MD5.Create()
hash = md5.ComputeHash(Encoding.Default.GetBytes(elemId.IntegerValue.ToString()))
result = System.Guid(hash)
md5.Dispose()
out.append(result.ToString())
OUT = out
3 Likes
5

2022-04-07_18h06_59
is there a missing liberary ?

6

@Draxl_Andreas in my example the input is not a collection (list), you need to implement a for…loop to iterate on each element

1 Like