Placing a Linear Dimension object on Family Instances

[jmadeley37KVE]

Hi all,

I need to place a Linear Dimension on a series of Family Instances using the Revit API but can't seem to figure it out.

I need to get the Geometric References from the Instances but can't seem to get it right. The location property in this case are LocationPoints but I can't seem to make these ReferencePoints.

If anyone can help I would really appreciate it 😄

Thanks

Jack

[jeremy_tammik · Accepted solution]

Dear Jack, 

Maybe you can check first whether you can retrieve any useful references either from the FamilyInstance itself or from the geometry returned setting Options.ComputeReferences = true:

• GetFamilyPointPlacementReferences Method
  https://www.revitapidocs.com/2023/59db15da-7e87-a85f-bacf-e8a636d17022.htm
• GetReferenceByName Method
  https://www.revitapidocs.com/2023/d44a95cc-f2c7-1fa9-9180-fefed6d70ed6.htm
• GetReferences Method
  https://www.revitapidocs.com/2023/a8a7dc74-db8e-a7b6-a9c8-869397cca6b4.htm
• ComputeReferences Property
  https://www.revitapidocs.com/2023/d7da6de4-74a9-60e2-826f-698a5730d0a8.htm

Good luck and best regards,

Jeremy

[jmadeley37KVE]

Thanks Jeremy!

After reading your links I realised I need a Geometric Reference rather than an Element Reference to add to the ReferenceArray for the Dimension. I found a mixture of point and line geometry instance references from the FamilySymbol's i'm using and have managed to get it to work!

Thanks for all the help 🙂