[Solved] no filled face possible

[microelly2]

I try to create a filled face from a closed BSpline curve.
I tested wit a single curve, with a splitted curve into 2 or 3 segments. But filled face does not work for me.

sh=Part.makeFilledFace(Part.sortEdges([sh.Edge1,sh.Edge2,sh.Edge3])[0])
Part.OCCError: Failed to created face by filling edges

creating a planar Face works.
Any ideas?

no_filled_face_possible.FCStd

(8.62 KiB) Downloaded 18 times

OS: Ubuntu 14.04.6 LTS (Unity/ubuntu)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18403 (Git) AppImage
Build type: Release
Branch: master
Hash: 0717b4fc23ef1db70964c3977d25e2fe46a739d1
Python version: 3.7.3
Qt version: 5.12.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)

[openBrain]

It fails here the same way with the file you attached.
Notice this succeeds creating a face by using 2 times Draft/Upgrade on it. But I guess this isn't what you intend.

Anyway, I can very simply create a filled face from a single closed BSpline.
On the attached example file, just run :

Code: Select all

App.ActiveDocument.addObject('Part::Feature').Shape = Part.makeFilledFace(App.ActiveDocument.BSpline.Shape.Edges)

HTH

---
OS: Ubuntu 18.04.3 LTS (KDE/plasma)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18645 (Git)
Build type: Unknown
Branch: master
Hash: 95f18a7507dec0a033e79764025f31d390832449
Python version: 3.6.8
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/France (fr_FR)

[Chris_G]

This works for me :

Code: Select all

doc1 = FreeCAD.getDocument('no_filled_face_possible')
o1 = doc1.getObject('ID_5488c410_6dbb_4d4b_a08c_dad9ce92519c')
sh = o1.Shape
w = Part.Wire(sh.Edges)
sh = Part.makeFace(w, 'Part::FaceMakerSimple')
sh.check() # ---> reports errors
sh.validate()
sh.check() # ---> seems to be fixed
Part.show(sh)

[openBrain]

This works for me :

Code: Select all

w = Part.Wire(sh.Edges)
sh = Part.makeFace(w, 'Part::FaceMakerSimple')

If I'm correct, these 2 lines are exactly what 2 successive Draft/Upgrade do.

[freecad-heini-1]

I try to create a filled face from a closed BSpline curve.
I tested wit a single curve, with a splitted curve into 2 or 3 segments. But filled face does not work for me.

sh=Part.makeFilledFace(Part.sortEdges([sh.Edge1,sh.Edge2,sh.Edge3])[0])
Part.OCCError: Failed to created face by filling edges

creating a planar Face works.
Any ideas?

no_filled_face_possible.FCStd

OS: Ubuntu 14.04.6 LTS (Unity/ubuntu)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18403 (Git) AppImage
Build type: Release
Branch: master
Hash: 0717b4fc23ef1db70964c3977d25e2fe46a739d1
Python version: 3.7.3
Qt version: 5.12.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)

Hi Thomas,
please try OpenSCAD-Workbench Convert Edges to Faces .
Best regards
Wilfried

[microelly2]

Thank you all for the feedback.
For my first file the edges all belong to a plane. so Part.Face works here,
But in general I have to handle nonplanar curves
the workarounds, Draft upgrade, Openscad method all do no work because they use Part.Face.

here I have the nonplanar version.
working with line segments works but working with bspline doesnt work.
But I need a filledFace version which works on any closed edge list.

no_filled_face_possible_nonplanar.FCStd

(28.81 KiB) Downloaded 15 times

[hammax]

… using in CurvesWB the combined_projection_curve to generate 3D BSplines with SketcherWB,
you are able to create a filled 3D-Surface - but it is not parametric when modifying sketches.

FilledFace.PNG (38.21 KiB) Viewed 622 times

[microelly2]

… using in CurvesWB the combined_projection_curve to generate 3D BSplines with SketcherWB,
you are able to create a filled 3D-Surface - but it is not parametric when modifying sketches.

My workflow is:
create a closed curve from a selection of given curves
than create a filled face on it.
https://youtu.be/2LGHjrvnRuU

Meantime I worked with surface workbench. the result is still not nice but it works.

cp_052.png (182.49 KiB) Viewed 607 times

In a next step I will smooth the generated surface
Edit:
the other workaround is to split the curve into two segments and create a ruled surface

cp_054.png (26.93 KiB) Viewed 601 times

[microelly2]

https://youtu.be/Q_odR-_Yhqc
the final trick was to work with all edges an helper edges as bsplines instead of a single big spline.