is family instance joined?

[russ.green]

I can't see anything using RevitLookup but is there a way to tell if a family instance has been joined to something?

When tranforming an edge I'm getting different results after joining the family to another family or a wall, etc.

[rosalesduquej · Accepted solution]

Dear Russ,

Hi, I raised the question to our engineering team, and here is the response from one of them.

I think there are a couple of things to try:

1.) JoinGeometryUtils.GetJoinedElements()

For this one you could check out the post on Jeremy Tammik blog: http://thebuildingcoder.typepad.com/blog/2014/02/getting-two-different-kinds-of-joined-elements.html

2.) For concrete framing family instances and walls, you can get the Element’s Location, cast to LocationCurve, and look at ElementsAtJoin.

And for this 2nd suggestion you can look at this link. http://thebuildingcoder.typepad.com/blog/transaction/page/2/ Look for the post with title Wall Joins and Geometry.

There is also Element.GetGeneratingElementIds() which tells you for a given piece of geometry from an element what element causes this geometry to form.

Let us know how it goes, enjoy.

Cheers,

[russ.green]

The first method worked for me.

Thanks

[Anonymous]

can you show me JoinGeometryUtils.JoinGeometry method?

[russ.green]

You get the joined elements something like this

Dim the_list_of_the_joined As ICollection(Of ElementId) = JoinGeometryUtils.GetJoinedElements(document, familyinstance)

You can then check the size of the ICollection or projecess the elements stored in it.

[Anonymous]

thank you so much, i'm beginer in revit api should I'll need your help any
more.