Correct way to make a phased void in a wall?
Hi,
I have a wall that I have tagged as EXISTING and have created a void in it for a new opening tagged as NEW. It's not showing correctly on screen in the model using the Element Status filters. Nor is it correct in my 'before' floorplan which is filtered to exclude 'NEW' Elements.
How should I set up a new opening in an existing wall?
One trap I did not step into is the Element names being slightly different. The standard PSET filter for Walls, Doors and Windows won't work for openings:
IfcElement,/Pset_.*Common/."Status"="NEW"
Won't match on an IfcOpeningElement. I have not yet figured out how to do multiple filters in the Exclude string so instead I changed it to:
IfcOpeningElement,/Pset_.*Common/."Status"="NEW"
Which should work just for this opening to prove the concept but doesn't. Nor should it affect the model when I've set the filters to exclude everything tagged with NEW.
What have I done wrong?
Thanks
Julian
Comments
We differentiate here usually in by states. Existing, New and Demolished.
So for me the Wall - with its Void - would be Existing - while the Void part, that will be cut out, is an extra element - tagged as Demolished.
So when you hide Demolished, you can show the Existing and New parts and there should not be any geometry overlapping. (Like new Windows and Doors in demolished voids) Or printing plans with Existing and Demolished, for early demolishing work.
I don't think this is possible currently--that is, phasing the opening.
I don't think you can turn off the 'new' opening, and have the opening not showing in the 'existing plan'.
...
Would be an awesome feature request, however.
Thanks zoomer but that hasn't worked either. My void tagged DEMOLISH in an EXISTING wall still shows up on my existing floorplan.
I guess the workaround is to duplicate the whole wall, copy 1 EXISTING, DEMOLISH and copy 2 with the extra void in it NEW. Somehow that doesn't feel right, surely is would create material quantity issues when I get that far?
[cross post with @theoryshaw above this line]
Thanks @theoryshaw , I'll put one in.
(Still working through replacing my wrongly created wall by the way)
I meant the Void is part of the Existing Wall.
Inside that opening, you put an extra Wall from the same Wall Type as the existing, that fills that void - tagged as Demolished.
And if you will plan a new Window in that void (once Demolished is gone) you will put a New window in it too.
If you want to show the old existing, you make Existing and Demolished visible, if you want to show your new design, you will activate Existing and New.
You can use the Demolished for calculations, like how many cubic meters of concrete or brick to trash, ...
An old existing building will be divided into Existing (what will be kept) and Demolished (What has to go). Your final design will include parts of old Existing and the New parts.
Ah! that's a better workaround but still a workaround. It'll solve the BOM issue down the line but the junctions of the wall and the DEMOLISH infill appear on my before floor plan. Thanks @zoomer, much better way of handling it for now.
Is that bad ?
There might exist old paper plans or surveyor data of the pure Existing.
Protection of historic monuments may want such a demolish Plan, to examine the infringement. (It may be more complicated if the Existing does already no more resemble the historic planning)
We initially also show the before and after.
We show the Existing building but already colored in Existing and Demolished. And a similar plan of the new design Existing + New (minus Demolished), that both can be compared, before+after with its changes.