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Or yet another tutorial in how to recreate rooms from links in Revit post!

I know, there are tons of posts explaining how to create rooms from rooms on a link in Revit, but I’m not letting this to stop me.
Here is the problem, we need to copy the rooms from a linked file in  Revit 2017  back to our host model, keeping not only the limits, but the rooms’ names and numbers as well.

Disclaimer: There are several ways to do it with Dynamo, but I like this one which allow us to work directly with Python 🙂

First prompt the user to select the link where the rooms are placed:

																					def selectLink():     link = uidoc.Selection.PickObject(Selection.ObjectType.Element, "Select Revit link")     return doc.GetElement(link.ElementId)
																				

Now we get all rooms from the link that are visible in a view in the linked file with the same elevation. They can be changed to use the linked view name instead:

																					def getRooms(link, doc):     print( doc.ActiveView.Id)     linkViews =  FilteredElementCollector(link).OfCategory(BuiltInCategory.OST_Views).OfClass(ViewPlan).ToElements()     lView = None     for i in linkViews:         if i.GenLevel:             if round(i.GenLevel.Elevation, 2) == round(doc.ActiveView.GenLevel.Elevation, 2):                 lView = i                 break     rooms = FilteredElementCollector(link, lView.Id).OfCategory(BuiltInCategory.OST_Rooms).ToElements()     return rooms
																				

From the rooms, we need to extract the level, number, name boundary segments and position point:

																					def RoomsBoundaries(room):     level = room.Level     number = room.Number     name= room.LookupParameter("Name").AsString()     opt = SpatialElementBoundaryOptions()     boundaries = room.GetBoundarySegments(opt)     curves = []     for segment in boundaries:         for b in segment:             curve = b.GetCurve()             curves.append(curve)     position = room.Location     return name, number, level, curves, position.Point
																				

Once we have all the information, we can go ahead and recreate the rooms:

																					def recreateRoom(LinkRoom):     app = doc.Application       docCreation =Autodesk.Revit.Creation.Document     curveArr =  CurveArray()     for c in LinkRoom[3]:          curveArr.Append(c )       doc.Create.NewRoomBoundaryLines( doc.ActiveView.SketchPlane,curveArr, doc.ActiveView )           tagPoint =  UV( LinkRoom[4].X,  LinkRoom[4].Y )          room = doc.Create.NewRoom( doc.ActiveView.GenLevel, tagPoint )     room.Number = LinkRoom[1]     room.Name = LinkRoom[0]     return room
																				

The solution can be executed using the RevitPythonShell or inside a pyRevit script!

After running the script you will see all new rooms created in place and displaying the right number and name. We’ve also created Room separation lines, used to limit the rooms boundaries.

Here is the complete code of the execution

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Pablo Derendinger
Innovation Team | GeeksGang

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