topic Re: Host an Adaptive Instance in Revit API Forum

Host an Adaptive Instance

jmadeley37KVE — Thu, 15 Dec 2022 09:56:27 GMT

Hi all,

I'm having some difficulties hosting an adaptive family instance. I've taken a look around and it appears that once I have created an instance I can't rehost it, so this leaves me with the only option of host it on creation.

To create an adaptive component instance I'm using the AdaptiveComponentInstanceUtils.CreateAdaptiveComponentInstance() method - but this only accepts two parameters of document and symbol. I can see that the object that is created has a Host of Null, so is it possible to create an adaptive component with a host object defined?

Thanks in advance!

Jack

Re: Host an Adaptive Instance

jeremy_tammik — Thu, 15 Dec 2022 11:24:09 GMT

Oh dear. We recently looked at a similar issue:

https://forums.autodesk.com/t5/revit-api-forum/rehosting-adaptive-point/m-p/11282839

Maybe we need to report this to the development team as well. I asked them for you how to address this.

Re: Host an Adaptive Instance

jmadeley37KVE — Fri, 16 Dec 2022 13:34:40 GMT

Thanks Jeremy, from my research this was going to be solved in Revit 2023 but I can't see any difference from 2022. Is there a method that I should be using?

Re: Host an Adaptive Instance

jeremy_tammik — Fri, 16 Dec 2022 15:17:32 GMT

Yes. The development team replied:

Looks like the @jmadeley37KVE is unaware of how to rehost the instance points after placing them. Here is the response:

One has to fetch the placement point ids from the placed instance and rehost those points individually:

AdaptiveComponentInstanceUtils.GetInstancePlacementPointElementRefIds
AdaptiveComponentInstanceUtils.GetInstancePointElementRefIds
AdaptiveComponentInstanceUtils.GetInstanceShapeHandlePointElementRefIds

One can rehost the individual placement points and shape handles using ReferencePoint.SetPointElementReference.

While references from project will work without issues, the curve references from family instances had some issues in older Revit. Curve references from family instances issue was reported in REVIT-181785 (forum link) and is fixed in Revit 2022.2, Revit 2023.1 and all subsequent future releases.

Re: Host an Adaptive Instance

jmadeley37KVE — Mon, 19 Dec 2022 12:09:38 GMT

Hi Jeremy,

Thanks for the above.

I can see that I've retreived the references points as advised above, but how would I go about using the ReferencePoint.SetPointElementReference method? Do I specify the host in the constructor?

Thanks

Jack