Freecad crash (acces error)

[jureko]

Hi,
is any way 'turn on' skipping invalid objects on import ifc files? When import attached files got acces error, and FreeCAD hangs. Have to import lot of files and manually checking is lot of trouble

ifcopenshell from: ifcopenshell-python-38-v0.6.0-0d93633-win64

OS: Windows 7 SP 1 (6.1)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.21329 (Git)
Build type: Release
Branch: master
Hash: 2330eef823b32ac412d839031cc174353a76b013
Python version: 3.8.2
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: Polish/Poland (pl_PL)

[lambda]

Hi,

I'm not sure I understand exactly what you want, but maybe looking at Preferences -> Import/Export -> IFC import helps?

Harald

[jureko]

Hi,

I'm not sure I understand exactly what you want, but maybe looking at Preferences -> Import/Export -> IFC import helps?

Harald

So, when I'm trying import lot of ifc files into one new file, few files making problem. FreeCAD dont import these files and hangs. Is any way to skip these files automatically? Something like 'on error: go next'?
--
jureko

[lambda]

How do you go about this "import lots of ifc files into one new file"? Are you scripting this in python? Can you share the error you are getting?

[jureko]

How do you go about this "import lots of ifc files into one new file"? Are you scripting this in python? Can you share the error you are getting?

starting FreeCAD, next 'File/new file', next file/Import, selecting files to import (expml. 100 files, without python script). After importing few files got error (acces error) end FreeCAD freeze. Any way to skip wrong files?

[chrisb]

Access violation errors often come from grphics card/driver. Try with 0.19, look at the Known OS specific issues and add your FreeCAD infos if the problem persists.

It is called a crash if FreeCAD terminates all of a sudden by itself.

[lambda]

starting FreeCAD, next 'File/new file', next file/Import, selecting files to import (expml. 100 files, without python script). After importing few files got error (acces error) end FreeCAD freeze. Any way to skip wrong files?

Interesting I have not been aware this this possible.

Well the only idea I have is to script the import in python:

Something like this might get you started:

Code: Select all

import importIFC

for file in files:
	importIFC.insert(file, FreeCAD.ActiveDocument.Name)

However this won't prevent FreeCAD from crashing, so you would need some other logic to determine which files loaded successfully and update your list of files.

Also in my experience many of these crashes come from ifcopenshell, not FreeCAD. To make a list of bad files, you might just try processing them with ifcopenshell directly. (Also updateing ifcopenshell might help, as some such crashes have been fixed recently.)

To make FreeCAD resistant to ifcopenshell crashes, we would need to run ifcopenshell in a separate thread. I'd like to see that, but I guess it isn't possible in the moment.

HTH,
Harald