get all BuildingSmart smart properties for an object

B by bernd on 22 Jun 2023, edited 1 Jul 2023 #

BuildingSmart defines dozens of PSets and properties for a IfcDoor : https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDoor.htm#6.1.3.16.5-Property-sets

Is it possible to get them by python in IfcOpenShell somehow to furter process them

C by Coen on 22 Jun 2023 #

Something like this? Just tested it on the Schependomlaan.ifc


import ifcopenshell

from blenderbim.bim.ifc import IfcStore


ifc_file = ifcopenshell.open(IfcStore.path)

products = ifc_file.by_type('IfcDoor')


for ifcproduct in products:

    if ifcproduct.IsDefinedBy:        

        for ifcreldefinesbyproperties in ifcproduct.IsDefinedBy:

            if (ifcreldefinesbyproperties.is_a()) == 'IfcRelDefinesByProperties':

                if ifcreldefinesbyproperties.RelatingPropertyDefinition.is_a() == 'IfcPropertySet':

                    for ifcproperty in (ifcreldefinesbyproperties.RelatingPropertyDefinition.HasProperties):

                        print (ifcproduct.Name, ifcreldefinesbyproperties.RelatingPropertyDefinition.Name, ifcproperty)

Section of output:


...

D1L AC_Pset_32_KD_berkvens_BA #978576=IfcPropertySingleValue('openingshoek 2d',$,IfcPlaneAngleMeasure(15.),$)

D1L AC_Pset_32_KD_berkvens_BA #978577=IfcPropertySingleValue('arcering kozijn',$,IfcLabel('000 Ddichte arcering (01)'),$)

D1L AC_Pset_32_KD_berkvens_BA #978578=IfcPropertySingleValue('arcering kozijnachtergrond',$,IfcLabel('Lege arcering (2)'),$)

D1L AC_Pset_32_KD_berkvens_BA #978579=IfcPropertySingleValue('pen contourlijn kozijn',$,IfcLabel('Standaardpen'),$)

D1L AC_Pset_32_KD_berkvens_BA #978580=IfcPropertySingleValue('pen acchergrondarcering',$,IfcLabel('Achtergrond wit - NIET WIJZIGEN'),$)

D1L AC_Pset_32_KD_berkvens_BA #978581=IfcPropertySingleValue('pen acchergrondarcering kozijn',$,IfcLabel('Standaardpen'),$)

D1L AC_Pset_32_KD_berkvens_BA #978582=IfcPropertySingleValue('pen acering deurzijde',$,IfcLabel('Achtergrond wit - NIET WIJZIGEN'),$)

D1L AC_Pset_32_KD_berkvens_BA #978583=IfcPropertySingleValue('pen arcering dorpelzijde',$,IfcLabel('Achtergrond wit - NIET WIJZIGEN'),$)

D1L AC_Pset_32_KD_berkvens_BA #978584=IfcPropertySingleValue('deurarcering',$,IfcLabel('310 naaldhout (01)'),$)

D1L AC_Pset_32_KD_berkvens_BA #978585=IfcPropertySingleValue('pen arcering deur',$,IfcLabel('Standaardpen'),$)

D1L AC_Pset_32_KD_berkvens_BA #978586=IfcPropertySingleValue('openingshoek 3d',$,IfcPlaneAngleMeasure(0.),$)

D1L AC_Pset_32_KD_berkvens_BA #978587=IfcPropertySingleValue('openingslijnen',$,IfcLabel('beiden'),$)

D1L AC_Pset_32_KD_berkvens_BA #978588=IfcPropertySingleValue('deurdorpel',$,IfcBoolean(.F.),$)

D1L AC_Pset_32_KD_berkvens_BA #978589=IfcPropertySingleValue('materiaal dorpel',$,IfcLabel('RAL 9005 '),$)

D1L AC_Pset_32_KD_berkvens_BA #978590=IfcPropertySingleValue('bovenlichttype',$,IfcLabel('glas'),$)

D1L AC_Pset_32_KD_berkvens_BA #978591=IfcPropertySingleValue('materiaal bovenlicht glas',$,IfcLabel('Glas - blauw'),$)

D1L AC_Pset_32_KD_berkvens_BA #978592=IfcPropertySingleValue('materiaal bovenlicht paneel',$,IfcLabel('RAL 9010 '),$)

D1L AC_Pset_32_KD_berkvens_BA #978593=IfcPropertySingleValue('neuslat links (scharnierzijde)',$,IfcBoolean(.F.),$)

D1L AC_Pset_32_KD_berkvens_BA #978594=IfcPropertySingleValue('neuslat rechts (scharnierzijde',$,IfcBoolean(.T.),$)

D1L AC_Pset_32_KD_berkvens_BA #978595=IfcPropertySingleValue('materiaal neuslatten',$,IfcLabel('Verf - wit'),$)

D1L AC_Pset_32_KD_berkvens_BA #978596=IfcPropertySingleValue('kruk en schild',$,IfcBoolean(.T.),$)

D1L AC_Pset_32_KD_berkvens_BA #978597=IfcPropertySingleValue('materiaal kruk en schild',$,IfcLabel('Metaal - Roestvrijstaal'),$)

D1L AC_Pset_32_KD_berkvens_BA #978598=IfcPropertySingleValue('slottype',$,IfcLabel('loopslot'),$)

D1L AC_Pset_32_KD_berkvens_BA #978599=IfcPropertySingleValue('materiaal cilinder',$,IfcLabel('Metaal - Roestvrijstaal'),$)

D1L AC_Pset_32_KD_berkvens_BA #978600=IfcPropertySingleValue('materiaal deur',$,IfcLabel('RAL 9001'),$)

D1L AC_Pset_32_KD_berkvens_BA #978601=IfcPropertySingleValue('materiaal kozijn',$,IfcLabel('RAL 9010 '),$)

D1L AC_Pset_RenovationAndPhasing #978607=IfcPropertySingleValue('Renovation Status',$,IfcLabel('New'),$)

D1L Pset_DoorCommon #978613=IfcPropertySingleValue('IsExternal',$,IfcBoolean(.F.),$)

...

B by bernd on 22 Jun 2023 #

another question in this regard. AFAIK BuildingSmart defines property names in different main world languarges. I could not find them on the page linked in the post before.

P by paullee on 22 Jun 2023 #

I would like to try similar in FreeCAD :D

@bernd Any idea what is equivalent in FreeCAD

from blenderbim.bim.ifc import IfcStore

Thanks

B by bernd on 22 Jun 2023, edited 22 Jun 2023 # +1 votes

No not all properties from a model like Schependomlaanbut but all properties BuildingSmart has defined for an IfcDoor in ifc schema 4x3. That is why I posted the link. I would like to have all possible BuildingSmart properties in a list.

B by bernd on 22 Jun 2023 #

I FreeCAD I found this list https://github.com/FreeCAD/FreeCAD/blob/master/src/Mod/Arch/Presets/pset_definitions.csv I do not know if similar exist in BlenderBIM or where does BlenderBIM gets its Property names from?

B by bernd on 22 Jun 2023 #

https://wiki.osarch.org/index.php?title=IfcOpenShell_code_examples#Exploring_IFC_schema but somehow it does not find all properties defined in IFC4.3

B by bernd on 22 Jun 2023 # +2 votes

Following the psets for IFC4 but how do I get them for IFC version 4.3

import ifcopenshell.util.pset

from ifcopenshell import util

pset_qto = util.pset.PsetQto("IFC4")

all_psets = pset_qto.get_applicable_names("IfcDoor")



for pset in all_psets:

    print(pset)




>>> import ifcopenshell.util.pset

>>> from ifcopenshell import util

>>> pset_qto = util.pset.PsetQto("IFC4")

>>> all_psets = pset_qto.get_applicable_names("IfcDoor")

>>> 

>>> for pset in all_psets:

...     print(pset)

... 

Pset_EnvironmentalImpactIndicators

Pset_EnvironmentalImpactValues

Pset_DoorCommon

Pset_DoorWindowGlazingType

Qto_DoorBaseQuantities

Pset_Condition

Pset_ManufacturerOccurrence

Pset_ManufacturerTypeInformation

Pset_ServiceLife

Pset_Warranty

>>>

B by bernd on 22 Jun 2023, edited 22 Jun 2023 #

for IFC4x3 I get error key does not exist

>>> util.pset.PsetQto("IFC4x3").get_applicable_names("IfcDoor")

Traceback (most recent call last):

  File "<input>", line 1, in <module>

  File "C:\0_BHA_privat\progr\FreeCAD\FreeCAD_0.21.xxxxx\bin\lib\site-packages\ifcopenshell\util\pset.py", line 47, in __init__

    path = str(folder_path.joinpath("schema", self.templates_path[schema]))

KeyError: 'IFC4x3'

>>>

P by paullee on 22 Jun 2023 # +1 votes

Thanks Bernd, it works in FreeCAD also :D

M by Moult on 29 Jun 2023, edited 29 Jun 2023 # +1 votes

@bernd IFC4X3 pset support was added a few months ago. Note that you have to specify "IFC4X3" with a capital X, not lowercase.


>>> ifcopenshell.util.pset.PsetQto("IFC4X3").get_applicable_names("IfcDoor")

['Pset_Condition', 'Pset_ConstructionAdministration', 'Pset_ConstructionOccurence', 'Pset_DoorCommon', 'Pset_DoorWindowGlazingType', 'Pset_ElementKinematics', 'Pset_EnvironmentalCondition', 'Pset_EnvironmentalImpactIndicators', 'Pset_EnvironmentalImpactValues', 'Pset_InstallationOccurrence', 'Pset_MaintenanceStrategy', 'Pset_MaintenanceTriggerCondition', 'Pset_MaintenanceTriggerDuration', 'Pset_MaintenanceTriggerPerformance', 'Pset_ManufacturerOccurrence', 'Pset_ManufacturerTypeInformation', 'Pset_ProcessCapacity', 'Pset_RepairOccurrence', 'Pset_Risk', 'Pset_ServiceLife', 'Pset_Tolerance', 'Pset_Uncertainty', 'Pset_Warranty', 'Qto_BodyGeometryValidation', 'Qto_DoorBaseQuantities']

Ping @yorik you might want to delete https://github.com/FreeCAD/FreeCAD/blob/master/src/Mod/Arch/Presets/pset_definitions.csv and use the IfcOpenShell util instead that way it is always up to date.

P by paullee on 29 Jun 2023 #

@Moult Seems not working in FreeCAD ?

import ifcopenshell.util.pset

ifcopenshell.util.pset.PsetQto("IFC4X3")

Traceback (most recent call last):

File "<input>", line 1, in <module>

File "/home/paullee/Downloads/FreeCAD_weekly-builds-33071-2023-05-04-conda-Linux-x86_64-py311/squashfs-root/usr/lib/python3.11/site-packages/ifcopenshell/util/pset.py", line 47, in init

path = str(folder_path.joinpath("schema", self.templates_path[schema]))

                                          ~~~~~~~~~~~~~~~~~~~^^^^^^^^

KeyError: 'IFC4X3'

ifcopenshell.util.pset.PsetQto("IFC4X3").get_applicable_names("IfcDoor")

Traceback (most recent call last):

File "<input>", line 1, in <module>

File "/home/paullee/Downloads/FreeCAD_weekly-builds-33071-2023-05-04-conda-Linux-x86_64-py311/squashfs-root/usr/lib/python3.11/site-packages/ifcopenshell/util/pset.py", line 47, in init

path = str(folder_path.joinpath("schema", self.templates_path[schema]))

                                          ~~~~~~~~~~~~~~~~~~~^^^^^^^^

KeyError: 'IFC4X3

M by Moult on 29 Jun 2023 # +1 votes

@paullee IFC4X3 should be in the templates path: https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.7.0/src/ifcopenshell-python/ifcopenshell/util/pset.py#L42

If it doesn't, that means FreeCAD perhaps ships an outdated version of IfcOpenShell. That functionality was added a few months ago. I'm not sure how FreeCAD bundles IfcOpenShell.

P by paullee on 30 Jun 2023, edited 30 Jun 2023 #

@Moult Thanks, I am trying to check whilst I see your remarks above, ~~not sure the correct way to do it though at the moment~~. referring to FreeCAD wiki https://wiki.freecad.org/IfcOpenShell

@yorik Could you comment please?

Thanks :)

ifcopenshell.ifcopenshell.version

'v0.7.0-07ee62eb9'

It is python 3.10

ifcopenshell.path

['/home/paullee/.local/lib/python3.10/site-packages/ifcopenshell']

M by Moult on 30 Jun 2023, edited 30 Jun 2023 # +1 votes

07ee62eb9 is Jan 18. So yes, it is outdated. From the path it seems as though your IfcOpenShell is on your system (i.e. not tied to FreeCAD). You can upgrade using these instructions https://blenderbim.org/docs-python/ifcopenshell-python/installation.html#pre-built-packages

It seems as though the FreeCAD Wiki can (should?) point to the install docs here instead https://blenderbim.org/docs-python/ifcopenshell-python/installation.html which is kept up to date and includes a few more methods of installation.

Y by yorik on 30 Jun 2023 # +1 votes

IfcOpenShell is bundled with the stable installers of FreeCAD. Basically the latest available version at this point. But indeed after several months users find themselves with a rather old version...

This wasn't really a problem until now, because the standard IFC import/exporter bundled with FreeCAD/Arch uses pretty much standard features, but now with NativeIFC we use extreme advanced features, that's how bold we are ?...

Maybe it's time to change this, ex. download IfcOpenShell at run time? Since FreeCAD 0.21 is about to be released I think it's best not to change that just now, but after that it might be interesting to look at it.

Indeed the blenderbim install page should be mentioned on the wiki.. will do that now

P by paullee on 30 Jun 2023 #

@yorik I am not sure the version outcome I reported is that bundled with FreeCAD AppImage I use - as FC seems use 3.11, but ifcopenshell report 3.10.

I have Fedora version installed also so not sure if it confused Appimage.

I may test again - or you are sure it is the same versiom (outdated as Moult pointed out ?

P by paullee on 30 Jun 2023 #

OK, @yorik it turns out an earlier AppImage version run python 11 (FreeCAD_weekly-builds-33071-2023-05-04-conda-Linux-x86_64-py311); later all python 310. Why?

Anyway, it does not run the 'system ifconpenshell' but the 'bundled one with AppImage, but it only return -

ifcopenshell.version

'0.7.0'

ifcopenshell.path

['/home/paullee/Downloads/FreeCAD_weekly-builds-33071-2023-05-04-conda-Linux-x86_64-py311/squashfs-root/usr/lib/python3.11/site-packages/ifcopenshell']

@Moult Any further command to return anything more than '0.7.0' ? (Though this version also returns KeyError : 'IFC4X3')

P by paullee on 30 Jun 2023 #

'pip list' on my Fedora 36 command prompt return

'ifcopenshell 0.7.0.230218'

Y by yorik on 30 Jun 2023 #

Definitely you need an ifcopenshell compiled with the same python version of FreeCAD. Not sure why one appimage had py11 and the others not... maybe there was some bug with py11 at that time. Also i'm not sure if an appimage can use system python packages... if not, that's annoying, but there might still pe a way to place manually the ifcopenshell folder in one of the python sys.path

P by paullee on 30 Jun 2023, edited 30 Jun 2023 #

No worry about python version :)

Just tested the latest AppImage released yesterday - have 'pip uninstall' the 'system' ifcopenshell, and in FC python console it import the bundled ifcopenshell - But it sill have the KeyError : 'IFC4X3'.

Need to wait until FC bundle with latest ifcopenshell :D

Y by yorik on 30 Jun 2023 # +1 votes

what about installing a blenderbim package in one of the sys.path folders ?

P by paullee on 30 Jun 2023, edited 30 Jun 2023 #

Now I am not sure ... @Moult

I download the pre-built package from https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-310-v0.7.0-476ab50-linux64.zip
Then, put in the /home/paullee/.local/lib/python3.10
Import in FreeCAD console seems would load this version (rather than FC bundled one)
Everything is fine but still KeyError :D

"Python 3.10.12 | packaged by conda-forge | (main, Jun 23 2023, 22:55:59) [GCC 12.3.0] on linux

Type 'help', 'copyright', 'credits' or 'license' for more information.

import ifcopenshell

ifcopenshell.version

'v0.7.0-476ab506d'

ifcopenshell.path

['/home/paullee/.local/lib/python3.10/site-packages/ifcopenshell']

import ifcopenshell.util.pset

ifcopenshell.util.pset.PsetQto("IFC4X3")

Traceback (most recent call last):

File "<input>", line 1, in <module>

File "/home/paullee/.local/lib/python3.10/site-packages/ifcopenshell/util/pset.py", line 47, in init

path = str(folder_path.joinpath("schema", self.templates_path[schema]))

KeyError: 'IFC4X3'

(sorry, off-topic too long)

A by Andrej730 on 1 Jul 2023 # +1 votes

@paullee ifcopenshell-python-310-v0.7.0-476ab50-linux64.zip is still outdated

https://github.com/IfcOpenShell/IfcOpenShell/commit/476ab506d is Feb 15

pset library for ifc4x3 was added at Feb 23 - https://github.com/IfcOpenShell/IfcOpenShell/commit/708dc6a