Curves workbench

Post here for help on using FreeCAD's graphical user interface (GUI).
Forum rules
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help

Also, be nice to others! Read the FreeCAD code of conduct!
User avatar
adrianinsaval
Veteran
Posts: 5541
Joined: Thu Apr 05, 2018 5:15 pm

Re: Curves workbench

Post by adrianinsaval »

Is there a way of obtaining such flatened faces from BSpline surfaces?
User avatar
Chris_G
Veteran
Posts: 2579
Joined: Tue Dec 31, 2013 4:10 pm
Location: France
Contact:

Re: Curves workbench

Post by Chris_G »

In the specific case of developable BSpline surfaces, I suppose there is a way.
pafurijaz
Posts: 66
Joined: Sun Dec 18, 2016 6:04 pm

Re: Curves workbench

Post by pafurijaz »

Great tool this new feature is useful and I hope it can be expanded with more options in the future, it's like the one that exists in Rhinoceros the command UnrollSrf

I hope in future we can develop also a surfaces with zero Gaussian curvature.
User avatar
saso
Veteran
Posts: 1920
Joined: Fri May 16, 2014 1:14 pm
Contact:

Re: Curves workbench

Post by saso »

See my post here https://forum.freecad.org/viewtopic.php ... ec#p582967 and the link in that post to an older topic where the two methods are shown (Chris_G flatten_face.FCMacro is now implemented as a tool in Curves WB). Note that the method with the mesh will allow you to flatten (unwrap) most faces but its precision will depend on the mesh and the type of the surface, as already noted surfaces that cannot be exactly flattened mathematical will be distorted.
Attachments
unwrap mesh.FCStd
(88.99 KiB) Downloaded 19 times
SharedScreenshot.jpg
SharedScreenshot.jpg (42.19 KiB) Viewed 1628 times
Last edited by saso on Tue May 24, 2022 8:31 pm, edited 1 time in total.
pafurijaz
Posts: 66
Joined: Sun Dec 18, 2016 6:04 pm

Re: Curves workbench

Post by pafurijaz »

saso wrote: Tue May 24, 2022 8:27 pm See my post here https://forum.freecad.org/viewtopic.php ... ec#p582967 and the link in that post to an older topic where the two methods are shown (Chris_G flatten_face.FCMacro is now implemented as a tool in Curves WB). Note that the method with the mesh will allow you to flatten (unwrap) most faces but its precision will depend on the mesh and the type of the surface, as already noted surfaces that cannot be exactly flattened mathematical will be distorted.
Yeah I know this method with mesh I saw a tutorial by MangoJelly on Youtube, It's like the UV unwrapping with Blender.
User avatar
Vincent B
Veteran
Posts: 4713
Joined: Sun Apr 05, 2015 9:02 am
Location: La Rochelle, France

Re: Curves workbench

Post by Vincent B »

New feature I haven't try yet. How it supposed to do?
Attachments
Capture.JPG
Capture.JPG (45.79 KiB) Viewed 1371 times
User avatar
Chris_G
Veteran
Posts: 2579
Joined: Tue Dec 31, 2013 4:10 pm
Location: France
Contact:

Re: Curves workbench

Post by Chris_G »

Vincent B wrote: Sat Jun 25, 2022 7:23 pm New feature I haven't try yet. How it supposed to do?
When the points to interpolate are on a surface (FaceSupport property), these options allow to turn around the surface between each point.
This is an experiment. I am not sure it is really useful as it is.
But it allows to make custom spirals.
spiral.png
spiral.png (177.72 KiB) Viewed 1345 times
Attachments
spiral.FCStd
(17.4 KiB) Downloaded 21 times
User avatar
hammax
Veteran
Posts: 1985
Joined: Thu Jan 19, 2017 5:03 pm
Location: Ammersee DE

Re: Curves workbench

Post by hammax »

... bravo, a new kind of heat exchanger

CurvesSpiral.PNG
CurvesSpiral.PNG (75.86 KiB) Viewed 1308 times
Attachments
spiral_2.FCStd
FC.20
(87.22 KiB) Downloaded 13 times
User avatar
saso
Veteran
Posts: 1920
Joined: Fri May 16, 2014 1:14 pm
Contact:

Re: Curves workbench

Post by saso »

Chris, I think you have to do something for the addon manager to see the latest updates...
User avatar
Chris_G
Veteran
Posts: 2579
Joined: Tue Dec 31, 2013 4:10 pm
Location: France
Contact:

Re: Curves workbench

Post by Chris_G »

I increased version number to 0.5
Is it good now ?
Post Reply