Curves workbench
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Re: Curves workbench
This video is aimed at Freecad freeform surface experts / specialists, such as Chris_G, GlouGlou, wmayer, microelly2 - and others.
https://peertube.mastodon.host/videos/w ... 4d969152e9
The Surface Filling Tool, with the possibility to define a tangency to neighboring surfaces, works incorrectly in this case.
The Gordon Surface from the Curves Workbench lacks the ability to define neighboring surfaces in order to link tangential conditions to them.
@Thomas (microelly2), if you see this, please use the uploaded data to show which tools from your Nurbs Workbench can be used to solve this problem.
Everyone is welcome to try this example.
Many greetings
Wilfried
Translated with www.DeepL.com/Translator
https://peertube.mastodon.host/videos/w ... 4d969152e9
The Surface Filling Tool, with the possibility to define a tangency to neighboring surfaces, works incorrectly in this case.
The Gordon Surface from the Curves Workbench lacks the ability to define neighboring surfaces in order to link tangential conditions to them.
@Thomas (microelly2), if you see this, please use the uploaded data to show which tools from your Nurbs Workbench can be used to solve this problem.
Everyone is welcome to try this example.
Many greetings
Wilfried
Translated with www.DeepL.com/Translator
Re: Curves workbench
A sweep profile 2 rail make a better surface. Check it out.
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Re: Curves workbench
Hi GlouGlou,
Thank you so much for your diligence.
Unfortunately, there is a rather large deviation from the desired geometry. Please hide the Loft area, then you'll see what I mean. Your surface is much thinner at this point.
Best regards
Wilfried
Re: Curves workbench
Thanks!Finally it worked.But I still have some questions.Why does the contour of the resulting surface end up not coincident with the BSpline I used?Chris_G wrote: ↑Mon Sep 16, 2019 9:11 amDon't use this, it is outdated.
Use the Gordon surface.
I already answered about the Gordon surface scripting :Code: Select all
import gordon gordon = gordon.InterpolateCurveNetwork([bs0,bs1,bs2], [bs3,bs4,bs5], tol=0.1) # the bs* are BSpline curves my_surface = gordon.surface()
If I want to use an outline of my surface, how do I extract it?
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- q1.jpg (15.05 KiB) Viewed 1861 times
Re: Curves workbench
combined projection curves doesn't work any more?
OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18213 (Git)
Build type: Release
Branch: master
Hash: 22babc09954ac6fda9135ee71d68550921659b1c
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/France (fr_FR)
OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18213 (Git)
Build type: Release
Branch: master
Hash: 22babc09954ac6fda9135ee71d68550921659b1c
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/France (fr_FR)
- Attachments
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- CombinedCurveBug.FCStd
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Re: Curves workbench
It's a bug.
I'll push a fix this afternoon.
I'll push a fix this afternoon.
Re: Curves workbench
Any hint to make a nice hull? I'm stuck.
Surface and loft fail.
Surface and loft fail.
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- JustCurves.FCStd
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- Capture.JPG (36.85 KiB) Viewed 1768 times
Re: Curves workbench
… keep it simply simple = KISS.
Hull with 4 frames and loft => the real old fashioned "spline" design.
(in the original file I have a lot of exclamation marks)
https://forum.freecadweb.org/viewtopic. ... 58#p332858
Hull with 4 frames and loft => the real old fashioned "spline" design.
(in the original file I have a lot of exclamation marks)
https://forum.freecadweb.org/viewtopic. ... 58#p332858
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- JustCurves_2.FCStd
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Re: Curves workbench
Yes, loft is easy and fast to use. But unable to use the red lines.
Here my hull built on an Loft+Gordon+Filling.
Closed to be perfect.
Here my hull built on an Loft+Gordon+Filling.
Closed to be perfect.
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- Capture.PNG (306.78 KiB) Viewed 1686 times
Re: Curves workbench
… please have a look at your frames' curvature combs and the resulting "cellulitis".
Compared to a Sketcher BSpline with ONLY 4 control points.
Compared to a Sketcher BSpline with ONLY 4 control points.