topic Re: Linking revit model and location of link instances in Revit API Forum

Linking revit model and location of link instances

Anonymous — Thu, 30 Mar 2017 15:28:34 GMT

I want to take an existing revit model and link it into my current model.

In particular I need to be able to then place it or move it to the appropriate 3d location in the model. (e.g. onto different levels).

Somehow I don't see examples of this in the SDK.

Along with this, I am also hoping to take an existing model (along with detail) group in my model and write it out to a separate revit project file, and then perhaps, link this file back in, in the appropriate place. This would be similar to selecting the group instance in REVIT and clicking on the "LINK" ribbon button.

A related question:

In revit, when I open a project and then select a revit link within that project, the properties dialog box does not show very much about it. In particular, it does not seem to be 'inserted' onto any particular level. Does revit connect the link instance with any level? Is this something I can see and modify with the api (e.g. reference in a linked project and then move/copy it onto various levels in the host project.

Thanks for any help I can get on this.

Abba Lustgarten

ABBACADABBA INC.

Re: Linking revit model and location of link instances

jeremytammik — Mon, 03 Apr 2017 09:02:26 GMT

Dear Abba,

Thank you for your query.

You can definitely create a link to an existing RVT file and place it in your model.

I am not sure about writing it out, though.

Here is a list of some API enhancements for handling links added in Revit 2014, from

http://thebuildingcoder.typepad.com/blog/2014/07/createlinkreference-sample-code.html

Identifying links
Obtaining linked documents
Link creation
Link load and unload
Link path type
Conversion of geometric references
Room tag creation from linked rooms
Picking in links

Looking at What's New in the Revit 2014 API and searching for 'link' takes me to:

http://thebuildingcoder.typepad.com/blog/2013/04/whats-new-in-the-revit-2014-api.html

Link load and unload

The methods

RevitLinkType.Load()
RevitLinkType.LoadFrom()
RevitLinkType.Unload()

allow a link to be loaded or unloaded, or to be loaded from a new location.

Moving from the to the API help, I see the RevitLinkType Create method:

http://www.revitapidocs.com/2017/0dd0e8bd-5217-9a94-19bb-58dcb840e517.htm

I hope this helps.

Cheers,

Jeremy