Modelling for IFC export

[cadgiru]

Hi

Have attached an FCstd file of some test objects.

Screenshot_2018-09-19_07-58-42.png (29.7 KiB) Viewed 851 times

Also here a screenshot of ifc file of same, imported to ifcViewer

Screenshot_2018-09-19_07-53-13.png (160.47 KiB) Viewed 851 times

There must clearly be some rules we have to adhere to when wanting to export to ifc?

Help is as always much appreciated

regards

OS: Ubuntu 18.04.1 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14727 (Git)
Build type: Release
Branch: master
Hash: c6df59969bfb3ae2027e2b47ddd559852f6e9a4e
Python version: 2.7.15rc1
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[paullee]

I have little experience, just trying to use ifc recently...

and have similar result as you do ...

At2_RoofTest.ifc

(6.63 KiB) Downloaded 29 times

Screenshot from 2018-09-20 01-52-26.png (90.05 KiB) Viewed 830 times

OS: "Fedora release 27 (Twenty Seven)"
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13541 (Git)
Build type: None
Branch: releases/FreeCAD-0-17
Hash: 9948ee4f1570df9216862a79705afb367b2c6ffb
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/HongKong (en_HK)

[cadgiru]

So far, my findings on this are a bit strange.

If geometry is modeled 'in place' , everything seems to be fine.

If Geometry is moved, strange things sometimes happen.

Have tried moving at these levels, and combinations of these:
* Defining geometry (like wire or similar)
* Extrusion or similar
* Arch object

Getting somewhat confused

regards

[cadgiru]

After doing some testing, it seems that extrude symmetric is not working with ifc export.

Selection_017.png (126.55 KiB) Viewed 756 times

Changed Extrusions of previous shown elements from Symmetric to 'Normal' extrusion seems to fix the issue

Can anyone confirm this?

[paullee]

Hi, can you advise your IfcOpenShell setup e.g. using IfcOpenShell-python for reference?

Thanks.

[cadgiru]

Hi, can you advise your IfcOpenShell setup e.g. using IfcOpenShell-python for reference?

Thanks.

How to ?

[paullee]

Did you compile downloading the source from IfcOpenShell?

[cadgiru]

Did you compile downloading the source from IfcOpenShell?

The one running is downloaded from ifcopenshell, not compiled by myself. I sadly never got that to work.

[bernd]

The one running is downloaded from ifcopenshell, not compiled by myself. I sadly never got that to work.

Compiling ifcopenshell is not difficault. which system are you on?

[cadgiru]

The one running is downloaded from ifcopenshell, not compiled by myself. I sadly never got that to work.

Compiling ifcopenshell is not difficault. which system are you on?

OS: Ubuntu 18.04.1 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13541 (Git)
Build type: None
Branch: releases/FreeCAD-0-17
Hash: 9948ee4f1570df9216862a79705afb367b2c6ffb
Python version: 2.7.15rc1
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)