Conda: test errors

[looooo]

Is there an existing issue for this?

• I have searched the existing issues

Forums discussion

no forum discussion

Version

0.20 (Development)

Full version info

OS: Ubuntu 18.04.6 LTS (ubuntu:GNOME/ubuntu)
Word size of FreeCAD: 64-bit
Version: 0.20.28904 (Git)
Build type: Release
Branch: (HEAD detached at 8ad30d0)
Hash: 8ad30d03146fef0f39b90073fdf3e6072ed7f66d
Python 3.10.4, Qt 5.12.9, Coin 4.0.0, OCC 7.5.3
Locale: German/Germany (de_DE)
Installed mods: 
  * Manipulator
  * CurvedShapes
  * Beltrami
  * Curves 0.3.0
  * Assembly4

Subproject(s) affected?

No response

Issue description

testing the gui-tests I run into this error

Traceback (most recent call last):
  File "/home/lo/miniconda3/envs/freecad_py310/lib/python3.10/unittest/case.py", line 59, in testPartExecutor
    yield
  File "/home/lo/miniconda3/envs/freecad_py310/lib/python3.10/unittest/case.py", line 591, in run
    self._callTestMethod(testMethod)
  File "/home/lo/miniconda3/envs/freecad_py310/lib/python3.10/unittest/case.py", line 549, in _callTestMethod
    method()
  File "/home/lo/miniconda3/envs/freecad_py310/Mod/Mesh/MeshTestsApp.py", line 447, in testRayPick
    det=coin.cast(det,str(det.getTypeId().getName()))
SystemError: <built-in function cast> returned NULL without setting an exception

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[wwmayer]

This is the code of the unit test:

import Mesh
from pivy import coin

planarMesh = []
planarMesh.append( [-16.097176,-29.891157,15.987688] )
planarMesh.append( [-16.176304,-29.859991,15.947966] )
planarMesh.append( [-16.071451,-29.900553,15.912505] )
planarMesh.append( [-16.092241,-29.893408,16.020439] )
planarMesh.append( [-16.007210,-29.926180,15.967641] )
planarMesh.append( [-16.064457,-29.904951,16.090832] )

planarMeshObject = Mesh.Mesh(planarMesh)

Mesh.show(planarMeshObject)
view=FreeCADGui.ActiveDocument.ActiveView.getViewer()
rp=coin.SoRayPickAction(view.getSoRenderManager().getViewportRegion())
rp.setRay(coin.SbVec3f(-16.05,16.0,16.0),coin.SbVec3f(0,-1,0))
rp.apply(view.getSoRenderManager().getSceneGraph())
pp=rp.getPickedPoint()

det=pp.getDetail()
print (det)
print(det.getTypeId().getName())
det=coin.cast(det,str(det.getTypeId().getName()))

det.getFaceIndex() == 1

According to the error message it fails inside det=coin.cast(det,str(det.getTypeId().getName())) but I have no idea why. Could it be that your pivy is somehow broken? What's the output when you execute the Python code?

[looooo]

If I run the code in the python console, I get the same issue:

>>> det=coin.cast(det,str(det.getTypeId().getName()))
Traceback (most recent call last):
  File "<input>", line 1, in <module>
SystemError: <built-in function cast> returned NULL without setting an error

[wwmayer]

But what's the output of

print (det)
print(det.getTypeId().getName())

?

[luzpaz]

@looooo ping

[looooo]

just tried again with python 3.9 and there i see this:

>>> det=coin.cast(det,str(det.getTypeId().getName()))Gui.runCommand('Std_OrthographicCamera',1)
>>> det.getFaceIndex() == 1
Traceback (most recent call last):
  File "<input>", line 1, in <module>
AttributeError: 'SoDetail' object has no attribute 'getFaceIndex'
>>> type(det)
<class 'pivy.coin.SoDetail'>

If i run all of the code at once FreeCAD crashes. strange.

[luzpaz]

@wwmayer ☝️

[wwmayer]

In C++ when you have picked a triangle then the pointer of SoDetail actually is an SoFaceDetail and one can do a type check and a static_cast or dynamic_cast.

With pivy the returned object always is an SoDetail and in order to get a SoFaceDetail the helper function coin.cast can be used. Therefore I still would like to know the result of print(det.getTypeId().getName()) to be sure that the object is an SoFaceDetail. If yes, then there must be a problem with coin.cast.

[luzpaz]

@looooo ☝️

[looooo]

sorry for my late answer @wwmayer

print (det)
<pivy.coin.SoDetail; proxy of <Swig Object of type 'SoDetail *' at 0x116148090> >
print(det.getTypeId().getName())
SoFaceDetail

[wwmayer]

Ok, then it looks like the function coin.cast has stopped working.

[luzpaz]

@wwmayer shall we open a ticket in upstream coin3d repo ?

[wwmayer]

Which pivy version does Conda use?

[looooo]

I am using now 0.6.7 but I don't think there were any differences for coin.cast added to the pivy repo.

[wwmayer]

It works with:

from pivy import coin
det = coin.SoFaceDetail()
coin.cast(det, det.getTypeId().getName().getString())

With my locally build version from master where I reverted the latest changes of coin3d/pivy@4b919a3 I can confirm the error with:

from pivy import coin
det = coin.SoFaceDetail()
coin.cast(det, str(det.getTypeId().getName()))

See https://forum.freecadweb.org/viewtopic.php?p=602100#p602100