I got an IFCexport from Revit and hoped to turn off one floor slab to expose the storey below with walls an some details.
Unfortunately all floor slabs in a Revit model is exported to same ustn-level.
Anyone know of some trick I can tip the Revit guys so the export puts the different floor slabs in different ustn-levels.
(thought I posted this a few hours ago - if the appearance is delayed - sorry for taking bandwidth)
Is my wording above correct 'in' a ustn-level but 'on' a level in a building?
Haven't tried that yet, but try to create a group which includes all elements, and then remove the objects you don't want to see. Now make a building view of that.
Sure Andreas, same part, dgs and ustn-level. But in ABD in different Models.
So I can turn off display for a slab in floor 2 to see floor 1 below. Or make floor 2 transparent.
In the ifc I've got all floor slabs are on same level.
But I discovered that the setting 'Ignore Story Containment' -if off- splits the geometry to separate files!
So, if the Revit file is done with correct settings, it seems I get what I want.
regards / Thomas Voghera
You are doing a File - Import ifc, not a file - open ifc?
We have stopped using the file - import, it takes an eternity for the import, and the file sizes are extraordinary large, compared to the file open method.
But I agree that the functionality to keep the structure of the model is very important, therefor we have also file SR to get that one implemented into the file open method.
Andreas
I am still investigating and trying to understand. Seems you are ahead in this.
First I didn't care about import or open - but I see now what you mean.
File open ifc - is faster - but the file.ifc is opened as it is. And and all slabs are on same ustn-level.
Import take much longer time and produces big files.
But once imported, with the storey containment OFF, the resulting dgn-files seems ok.
Or are there hidden problems with them down stream?
Thomas, read that one first.
communities.bentley.com/.../263304.aspx
FWIW, File > Import uses ABD code and includes building properties on the imported elements, while File > Open uses MicroStation code (it's also available there) and focuses more on graphics rather than business data. I'm not sure either will make a difference single level aspect that Thomas is describing, but depending on what you need from that imported IFC after the fact, it could...
IFC Import tries to transform imported elements as best as possible to ABD elements, while IFC Open transforms them to MicroStation elements. The latter results in near 100% fidelity of geometry, but also includes the business data, which can be reviewed via the Item Browser. Levels in the IFC files are honoured, so if the Revit file has walls and slabs on the same level, they will be on the same level in the Mstn file. However, as suggested in previous replies, there are various methods to remove the slabs from display or to assign a different level to the slabs and switch them of.