Changing Dimension Prefix (Dynamo/Python)

Konrad_K_Sobon · July 15, 2016, 11:22pm

Here’s a good post from Jeremy: http://thebuildingcoder.typepad.com/blog/2014/09/revit-2015-r2-ur4-and-dimension-prefix-suffix.html

Joaquim_Danado · July 16, 2016, 11:45am

Thank you for your awnser Konrad! I forgot to mention, that I’m totally ignorant in coding. As I understand in the link you posted, he wanted to collect dimensions suffix/prefix, not to change it for a defined text. Am I wrong?

I’m sending in attachmet the codes created by Jeremy (from the first link i’ve mentioned) that’s running but nothing seems to happenGet-dimension-Value1 (1).dyn (2.0 KB)
. The other one, created by Ben Osborn (in the second link i’ve mentioned) that is working fine but just for one single dimension.dim-texts-change.dyn (2.4 KB)

Is it possible to work to all elements of a dimension type?

Kulkul · July 16, 2016, 3:09pm

Hi Joaquim,

Are you looking to override Dimension Text Values?

Joaquim_Danado · July 16, 2016, 3:26pm

Hi Kulkul,

Yes, something like prefix or sufix. Your script seems very close of what i’m searching. How did you did it?

Vikram_Subbaiah · July 16, 2016, 5:17pm

import clr
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
TransactionManager.Instance.EnsureInTransaction(doc)

for i in UnwrapElement(IN[0]) : i.Prefix = IN[1]

TransactionManager.Instance.TransactionTaskDone()

OUT = IN[0]

Note: This doesn’t work if any of the dimensions have multiple segments.

Kulkul · July 16, 2016, 5:22pm

@Joaquim_Danado currently away from my PC. Will get back tomorrow.

Joaquim_Danado · July 16, 2016, 6:24pm

Thank you Kulkul. Your help will be welcome!

Joaquim_Danado · July 16, 2016, 6:27pm

Thank you for your reply Vikram!
I’m trying to find a way to change dimensions, even with multiple segments

Vikram_Subbaiah · July 16, 2016, 7:29pm

@Joaquim_Danado This should do the needful

    import clr
    clr.AddReference("RevitServices")
    import RevitServices
    from RevitServices.Persistence import DocumentManager
    from RevitServices.Transactions import TransactionManager

    doc = DocumentManager.Instance.CurrentDBDocument
    TransactionManager.Instance.EnsureInTransaction(doc)

    for i in UnwrapElement(IN[0]):
    	if i.Value>=0: i.Prefix=IN[1]
    	else:
    		for j in i.Segments: j.Prefix = IN[1]

    TransactionManager.Instance.TransactionTaskDone()

    OUT =IN[0]

Joaquim_Danado · July 16, 2016, 8:22pm

Hi Vikram, thank you for your help!
It works pretty well. I tried it not for selected elements but catching all elements and it works fine.

Thank you a lot

john_pierson · July 18, 2016, 2:56pm

We also discussed this in this post Override Dimension Values

Sofie_Kopolla · July 4, 2017, 12:39pm

Hi Vikram i tried running your code block but it gives me syntax errors.

thanks,
S

neniapoloh · February 23, 2018, 7:26am

Hi @Kulkul !

I’m a new with Dynamo and your script in that gif is exactly what I have been looking for, how do I do it?

alfredo.cortes · October 1, 2019, 2:41pm

Hi @Vikram_Subbaiah I have an error and I don’t understand. Can you help me?

Kulkul · October 1, 2019, 2:58pm

Add List.Create after SelectModelElement node. Next time please start new thread.

alfredo.cortes · October 1, 2019, 3:10pm

Thank you so much @Kulkul it worked. One last question when I use the Select Model Elements I can’t select any instance. Do you know why?

alfredo.cortes · October 1, 2019, 3:16pm

Crossing window selection. Right?

Kulkul · October 1, 2019, 3:37pm

Yes!

matanTPZA7 · July 3, 2021, 12:27pm

Vikram_Subbaiah:

    import clr
    clr.AddReference("RevitServices")
    import RevitServices
    from RevitServices.Persistence import DocumentManager
    from RevitServices.Transactions import TransactionManager

    doc = DocumentManager.Instance.CurrentDBDocument
    TransactionManager.Instance.EnsureInTransaction(doc)

    for i in UnwrapElement(IN[0]):
    	if i.Value>=0: i.Prefix=IN[1]
    	else:
    		for j in i.Segments: j.Prefix = IN[1]

    TransactionManager.Instance.TransactionTaskDone()

    OUT =IN[0]

what i do wrong?

Joaquim_Danado · July 6, 2021, 4:47pm

Change the code according the image bellow: