Quite a few people have asked for a Revit API class diagram in the past, and the request continues to pop up every now and then, so here is a post that I can point to in future when that happens. Question: I am looking for a graphical diagram of the Revit API object model, because I cannot find it in the SDK. Where can I obtain that, please? Answer: Unfortunately, I do not have any very satisfying answer for... Read more →