Hello
I am unable to handle the import/export of Ifc correctly.
I have two examples here that I have tried a little with.
#1: Walls and pipes created in BIM workbench, the walls are ok but the pipes become in all the viuwers I checked in angular and when reimported to Freecad I can not find them on the screen. They appear on the model tree but not on the screen.
#2:Here is a part created in Part Design, just gets weird in, for example, Ifc++. When reimporting to Freecad = ( Not Responding).
The import may not have anything to do with ifc because I can't import it back to Freecad as FCStd either apparently.
I'm grateful for some help here.....
OS: Windows 10 Version 2009
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24291 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: Swedish/Sweden (sv_SE)
Regards Benny from Sweden
IFC export strange shape
IFC export strange shape
- Attachments
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- Pipe from BIM workbench
- wall_ pipe.png (31.29 KiB) Viewed 5541 times
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- Current export settings
- exp settings.png (100.77 KiB) Viewed 5541 times
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- Column from BIM workbench
- wall_column.png (41.61 KiB) Viewed 5541 times
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- Wall column pipe support.FCStd
- (55.47 KiB) Downloaded 71 times
Re: IFC export strange shape
Adding Part #2.
- Attachments
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- Part #2 from part design in IFC plusplus
- Belysningsfundament IFCplusplus.png (66 KiB) Viewed 5487 times
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- Part #2 from part design
- Belysningsfundament Freecad.png (683.85 KiB) Viewed 5487 times
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- Belysningsfundament_R1.FCStd
- Part#2 from Part design
- (173.22 KiB) Downloaded 72 times
- Shalmeneser
- Veteran
- Posts: 9475
- Joined: Wed Dec 23, 2020 12:04 am
- Location: Fr
Re: IFC export strange shape
Why do you use Boolean operations ?
Code: Select all
└ Fundament (Body)
├ AdditiveLoft (AdditiveLoft)
│ ├ Bottom (Sketch)
│ └ Top (Sketch)
├ SubtractiveLoft (SubtractiveLoft)
│ ├ Hole top001 (Sketch)
│ └ Hole bottom001 (Sketch)
└ SubtractivePipe (SubtractivePipe)
├ Hole profile001 (Sketch)
└ Hole path001 (Sketch)
- Attachments
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- Capture du 2021-11-11 18-46-45.png (37.36 KiB) Viewed 5477 times
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- Belysningsfundament_R1_SHALM.FCStd
- (56.28 KiB) Downloaded 69 times
- thomas-neemann
- Veteran
- Posts: 11801
- Joined: Wed Jan 22, 2020 6:03 pm
- Location: Osnabrück DE 🇩🇪
- Contact:
Re: IFC export strange shape
hello benny
I only use ifc for the geometry with no attributes. I do it this way and it has always worked out so far
(I think that rounded objects sometimes turn into angular objects is normal)
https://www.youtube.com/watch?v=VOx9XVPsqms
Re: IFC export strange shape
Thank you very much for the help, I am new to this so all tips that can point me in the right direction are gratefully received.
Tried to do the part without booleans and indeed it worked very smoothly.
I would really like to introduce BIM as a way of working in my everyday life as a construction worker/excavator operator. In order to get a smooth solution that lasts all the way to the actual construction in the workplace, IFC is probably the best solution after what I can understand. So for me, IFC management is the key.
I agree that the shape of the parts is not really important at all. It is all the data that the IFC schema can contain that is the most important and I am training to provide the models with attributes and propertysets. I think I do quite well with the information management at IFC in Freecad.
The problem is when to introduce the way of working to any other "end user" and try to persuade them to try "BIM workflow" instead of the old usual way with a bunch of drawings that are shared, emailed, copied, changed, etc. Well, it is realy difficult to persuade a supervisor or an old carpenter to use a drawing (BIM model) where the geometries do not resemble what is to be built....
Have so far tried to follow BIM with FreeCAD – The BIM workbench tutorial by Yorik, but I will definitely try this way too.
Again, thank you for your help. I'll try it again.
Tried to do the part without booleans and indeed it worked very smoothly.
I would really like to introduce BIM as a way of working in my everyday life as a construction worker/excavator operator. In order to get a smooth solution that lasts all the way to the actual construction in the workplace, IFC is probably the best solution after what I can understand. So for me, IFC management is the key.
I agree that the shape of the parts is not really important at all. It is all the data that the IFC schema can contain that is the most important and I am training to provide the models with attributes and propertysets. I think I do quite well with the information management at IFC in Freecad.
The problem is when to introduce the way of working to any other "end user" and try to persuade them to try "BIM workflow" instead of the old usual way with a bunch of drawings that are shared, emailed, copied, changed, etc. Well, it is realy difficult to persuade a supervisor or an old carpenter to use a drawing (BIM model) where the geometries do not resemble what is to be built....
Have so far tried to follow BIM with FreeCAD – The BIM workbench tutorial by Yorik, but I will definitely try this way too.
Again, thank you for your help. I'll try it again.
Re: IFC export strange shape
Confirmed.Benny wrote: ↑Thu Nov 11, 2021 5:20 am Hello
I am unable to handle the import/export of Ifc correctly.
I have two examples here that I have tried a little with.
#1: Walls and pipes created in BIM workbench, the walls are ok but the pipes become in all the viuwers I checked in angular and when reimported to Freecad I can not find them on the screen. They appear on the model tree but not on the screen.
- Wall exported, re-imported into FC - OK
- Column with those profile - need Force BRep to re-imported to FC OK
- Pipes - even Force BRep - NOT OK
Re: IFC export strange shape
Would like to have a look at this problem ? Thanks.bernd wrote: Ping