topic Re: Changing Dimension Text Value using Dynamo in Revit Architecture Forum

Changing Dimension Text Value using Dynamo

suganesh_matrix_a540 — Mon, 07 Aug 2023 17:09:58 GMT

Hello everyone

Can anyone guide me on how to change the dimension text value for multiple dimensions at once? Please see the attached image below. I want to toggle between those options using Dynamo.

Re: Changing Dimension Text Value using Dynamo

RPTHOMAS108 — Mon, 07 Aug 2023 17:32:51 GMT

I'm not sure you'll find node that will do exactly that, likely you'll have to write a Python node that is using API methods such as:

Dimension.ValueOverride
or
DimensionSegment.ValueOverride if it is a multi segment dimension (using Dimension.NumberOfSegments to iterate Dimension.Segments).

It will likely set overridden or not depending on if you provide something or null to the ValueOverride property I expect.

As with the UI you'll have to provide a text value that isn't something that looks like a number or normal dimension value alone.

Re: Changing Dimension Text Value using Dynamo

suganesh_matrix_a540 — Mon, 07 Aug 2023 17:24:28 GMT

Thank you for your reply.
I don't know how to use API methods.

Re: Changing Dimension Text Value using Dynamo

RPTHOMAS108 — Mon, 07 Aug 2023 17:38:55 GMT

Ask the question on dynamo forum and perhaps someone will provide a Python code example, it is fairly easy to do. Alternatively become self taught via https://primer2.dynamobim.org/ etc.

However generally it is a bad workflow to replace dimension values with text.

Re: Changing Dimension Text Value using Dynamo

L.Maas — Mon, 07 Aug 2023 17:47:23 GMT

Here a concept.

You will have to find a way which dimensions to change

Dimension.SetValueOverride to change the value

Dimension.ValueOverride to ask what the valueoverride is

Re: Changing Dimension Text Value using Dynamo

suganesh_matrix_a540 — Mon, 07 Aug 2023 17:59:50 GMT

Thank you. Will do.
Its just in few locations i need them that way.

Re: Changing Dimension Text Value using Dynamo

suganesh_matrix_a540 — Mon, 07 Aug 2023 18:00:42 GMT

Thank you for that concept script! Will try it out.

Re: Changing Dimension Text Value using Dynamo

suganesh_matrix_a540 — Mon, 07 Aug 2023 18:02:34 GMT

How do it change it back to actual value of the dimension if its a text?

Re: Changing Dimension Text Value using Dynamo

L.Maas — Mon, 07 Aug 2023 18:21:46 GMT

Here two ways

Re: Changing Dimension Text Value using Dynamo

edson.maruyama — Mon, 11 Mar 2024 16:32:07 GMT

How can you do this if you want to override only a segment of a dimension. Let's say like you want to override the first and last segment.

I know Rhythm can isolate the segments, but I could not find a way to override their values.

Re: Changing Dimension Text Value using Dynamo

RLY_15 — Tue, 12 Mar 2024 00:08:21 GMT

Proof of concept. Multi-segment dimensions are lists. The override node also accepts lists.

To only override the first/last segment, you can use something like Clockwork package's ReplaceItemAtIndex+ (allows multiple list replacements by indices)

EDIT: So I realized after posting that this still overrides the middle values, which is not good if those values change in the model (even if they're initially 'correct'). I'll look around to see if there's a package library that can isolate override state for each list item.

EDIT EDIT:
It's nulls. You put nulls in where you don't want to override the text.

Re: Changing Dimension Text Value using Dynamo

edson.maruyama — Tue, 12 Mar 2024 15:10:49 GMT

@RLY_15 it worked like a charm!

Used ReplaceByCondition to replace the values I wanted overriden, and to replace the others with null!

Thank you very much!