Error when importing multiple views in TechDraw

[dcapeletti]

Hi, I'm attaching the file that caused the error.
When I try to import several views of the revolution on the techdraw page, freecad throws the following error:

Code: Select all

App::Document::_RecomputeFeature(): Unknown exception in Feature "ProjItem" thrown

Actually, the same does not happen with other solids that I have created. I hope you can help me. Thanks

OS: Debian GNU/Linux 9 (stretch)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16117 (Git) AppImage
Build type: Release
Branch: (HEAD detached at 0.18.2)
Hash: dbb4cc6415bac848a294f03b80f65e888d531742
Python version: 3.6.7
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Spanish/Argentina (es_AR)

[chrisb]

I get a different error message ...

Code: Select all

GO::projectShape - OCC error -  - while projecting shape

... but it still works.

OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.17147 (Git)
Build type: Release
Branch: master
Hash: 251a3b1ff5517d929b4993d8836e17e01ae2623c
Python version: 3.7.3
Qt version: 5.9.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/Germany (en_DE)

[dcapeletti]

... but it still works.

It's true, in freecad 0.19 it works with that error message. But in the version 0.18 that I have attached, it launches the message and the views are not imported.

[chrisb]

But in the version 0.18 that I have attached, it launches the message and the views are not imported.

That's what you said above. It's the way how software development should be: newer versions have less errors and more functions.

[wandererfan]

Actually, the same does not happen with other solids that I have created. I hope you can help me. Thanks

The actual failure is in "HLRBRep_Algo::Update()" and the only information provided is there was a failure.

There is definitely something weird going on here.

- The DependencyGraph has "links go out of scope errors".

- I have problems trying to edit the Sketch or CopySketch. If I try to add a line, I either get no line and errors:
"Failed to add line: Both points are equal" and "Updating geometry: Error build geometry(14): Both points are equal",
or I get a line, but the line is locked to the horizontal sketch axis instead of the vertical line I'm trying to draw.

- also get "Invalid solution from DogLeg solver", but that might be due to the adding a line issue.

- the sketch edge on the Axis of Revolution is a spline, and it might cross the vertical axis. That would make a self intersecting solid. That edge should probably be a straight line.

SplineOnAxisOfRotation.png (159.84 KiB) Viewed 442 times

Need somebody with more skill than I to sort out CopySketch, I think.