Problem importing Step (.stp) - File

[NormandC]

Those calls refer to libraries from the OCC geometric kernel. I'm not sure there's anything that can be done here. It's possible that the original STEP file is faulty. It may be surprising, but some commercial CAD packages have very poor STEP export capability.

You could try importing the STEP file in another CAD program or viewer. For example there is CAD Assistant, a viewer made by Open Cascade (maker of the OCC kernel that FreeCAD uses). There's a Windows version. https://www.opencascade.com/content/cad-assistant

[wmayer]

Traceback (most recent call last):
File "<string>", line 1, in <module>
<type 'exceptions.RuntimeError'>: Access violation
Traceback (most recent call last):
File "<string>", line 1, in <module>
<type 'exceptions.RuntimeError'>: Access violation

The Access violation message usually is an indication that a segmentation fault occurred somewhere. Because on Windows FreeCAD is built with the SEH option the application in many cases survive the segmentation fault. There is a good chance that the bug is with OCCT 7.2.

Above you said that it imports fine with CAD Assistant which is also based on OCCT. Can you figure out on which OCCT version your installation of CAD Assistant depends on?

[arknut]

Latest version of FreeCAD 0.21.1 works well displaying the whole composed picture, importing correctly the external references and combining them. The only minor complain is that it shows the external references in the Combo View also alongside with the main (*MASTER) tree, which I'm not sure it that should happen.

Other apps don't do that which I think looks nicer.





Do you think a patch should be required?