Curves workbench

[chrisb]

The error seems to come from retr3D, not from curves.

[claude78]

The error seems to come from retr3D, not from curves.

yes, indeed, ive just unistal retr3d from freecad and now Curve workbench work.
Thanks a lot.

[Kunda1]

yes, indeed, ive just unistal retr3d from freecad and now Curve workbench work.
Thanks a lot.

potential conflict with retr3d then?
Should we note this ?

[claude78]

yes, indeed, ive just unistal retr3d from freecad and now Curve workbench work.
Thanks a lot.

potential conflict with retr3d then?
Should we note this ?

i think yes.

[chrisb]

retr3D was last updated 2015, so no wonder that there are conflicts and I guess it should be fixed on that side.

[Chris_G]

Ok for discretize.
But segment surface still have some troubles with a cylinder:
- surfaces carried out are inverted (sometimes)

This should be fixed now.

- surfaces doesn't follow discretized edge very well (maybe after changing number of descretize points)
- surfaces have bop algo error C0 -> can't use them for offset3D. but not all: the surface poles number change.

These 2 problems had same origin : the conic curves and surfaces (like cylinder) are converted to rational, C0-continuous geometries by default (method Shape.toNurbs()). This way, the nurbs are exact conversion of the conics. The drawback is that they are C0, and they don't have the angular parametrization of the conics (hence the slight offset).
So I have switched to a non-rational approximation of these surfaces to fix this.
However, I get an error in report view :

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<class 'TypeError'>: PyCXX: Error creating object of type N2Py7SeqBaseINS_6ObjectEEE from None

Do you get it also ?
I don't know where it comes from ...

[Vincent B]

very nice!
at this moment everything look great without error.
I was trying my 3 cylinders challenge.
...
mmm still find out how to finish theses 6 edges surfaces....

[Chris_G]

Maybe with Surface.Filling ?

pipe3.png (49.68 KiB) Viewed 2289 times

But I suppose you want to turn it into a solid with thickness ... that's where it fails unfortunately.

[Vincent B]

well done with the blend curves!
can give a negative thickness that's consistent for a pipe!
https://mon-partage.fr/f/YO5UhjU6/

[937]

FreeCAD crashes whenever I press the 'q' shortcut.

Note the (InitGui.py not found)... ignore seems not to be a problem.

Note also that I've just started learning FreeCAD a week ago and stayed mostly in the Sketcher and Part Workbenches so I don't know if only this Workbench is unstable for me.

Code: Select all

OS: Windows 10 Version 2009
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24276 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: a88db11e0a908f6e38f92bfc5187b13ebe470438
Python version: 3.8.6+
Qt version: 5.15.1
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United Kingdom (en_GB)

Code: Select all

11:06:21  OpenGL version is: 4.0 (4.0.0 - Build 10.18.10.5069)
11:06:21  Run Gui init script
11:06:21  Init: Running FreeCADGuiInit.py start script...
11:06:21  Init:   Searching modules...
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\AddonManager... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Arch... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Draft... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Drawing... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Fem... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Idf(InitGui.py not found)... ignore
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Image... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Import... done
11:06:22  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Inspection... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Material... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Measure(InitGui.py not found)... ignore
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Mesh... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\MeshPart... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\OpenSCAD... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Part... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\PartDesign... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Path... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Points... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Raytracing... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\ReverseEngineering... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Robot... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Show(InitGui.py not found)... ignore
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Sketcher... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Spreadsheet... done
11:06:23  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Start... done
11:06:24  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Surface... done
11:06:24  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\TechDraw... done
11:06:24  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Test... done
11:06:24  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Tux... done
11:06:24  Init:      Initializing Q:\Program Files\FreeCAD 0.19\Mod\Web... done
11:06:24  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\AirPlaneDesign... done
11:06:24  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Assembly4... done
11:06:24  Module: Part
11:06:24  Loading Part module... done
11:06:24  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\CfdOF... done
11:06:24  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\CurvedShapes... done
11:06:24  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Curves(InitGui.py not found)... ignore
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\ExplodedAssembly... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\fasteners... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\fcgear(InitGui.py not found)... ignore
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\FEM_FrontISTR... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Launcher... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\MakerWorkbench... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\parts_library(InitGui.py not found)... ignore
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Plot(InitGui.py not found)... ignore
11:06:25  ('Mod/Pyramids_and_polyhedrons', 'Mod/Pyramids-and-Polyhedrons', 'Mod/FreeCAD-Pyramids-and-Polyhedrons', 'Mod/Pyramids-and-polyhedrons')
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Pyramids-and-Polyhedrons... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\Render... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\SelectorToolbar... done
11:06:25  Init:      Initializing C:\Users\937\AppData\Roaming\FreeCAD\Mod\sheetmetal... done
11:06:25  Init: Initializing freecad.plot
11:06:26  Init: Initializing freecad.plot... done
11:06:26  Init: Initializing freecad.gears
11:06:26  Init: Initializing freecad.gears... done
11:06:26  Init: Initializing freecad.Curves
11:06:26  Init: Initializing freecad.Curves... done
11:06:26  Init: Loading FreeCAD GUI
11:06:26  Cannot find icon: /Resources/icons/Maker_workbench_icon.svg
11:06:26  Init: Running FreeCADGuiInit.py start script... done
11:06:28  Init: Activating default workbench StartWorkbench
11:06:28  Loading GUI of Part module... done
11:06:28  Init: Showing main window
11:06:28  Main window restored
11:06:28  Show main window
11:06:28  Toolbars restored
11:06:28  3Dconnexion device not attached.
11:06:28  Init: Entering event loop
11:06:28  Init: Processing command line files