Revit2018 - Added new option 'Relate doors to rooms'

[Jo64]

The important changes are in projects Revit.IFC.Export and IFCExporterUIOverride.
I have updated the installation project so that it works for us. You can ignore it.
You can change the code or the UI texts according to your personal or project-specific guidelines.

Revit doors that have set the ToRoom or the Room property are added to the ReleatedElements list.
The RelatedStructure is the room.

e.g.
IfcRelContainedInSpatialStructure
RelatingStructure(IfcSpatialStructureElement)
-IfcSpace
RelatedElements(IfcProduct)
-IfcDoor
-IfcDoor
-...

[AngelVelezSosa]

Is this just a JIRA issue that I keep seeing the install files as part of this pull request? @jmirtsch

[castronelson]

I need to convert revit to ifc file
can please anyone suggests why the RevitAPI.dll not working? if added in a empty project using asp.net

[WawanSolihin]

Generally, this may be a little problematic because IfcRelContainedInSpatialStructure has a restriction that one object can only be contained in one IfcSpatialStructureElement only. In the case of a Door, it usually belongs to 2 spaces so that it should not be contained in one of the space only since this will be ambiguous: which space really contains the door?
One way to get a relationship between the space and the door is through IfcRelSpaceBoundary (must export with space boundary level 1 option selected). Otherwise, a different relationship may be possible to use like IfcRelConnects, which connects Space -> Door -> Space, which is also inline with Revit door information (FamilyInstance) FromRoom and ToRoom