organic, irregular, asymmetrical shapes?

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asia
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Joined: Mon Nov 07, 2016 3:03 pm

organic, irregular, asymmetrical shapes?

Postby asia » Tue Nov 08, 2016 8:46 am

organic, irregular, asymmetrical shapes?
Any ideas how to make them?
For examle, is it the way to sweep by more than one path?
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microelly2
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Re: organic, irregular, asymmetrical shapes?

Postby microelly2 » Tue Nov 08, 2016 10:38 am

This is an example of a nurbs starting from a spherical nurbs.

I have done somw work for planar nurbs
viewtopic.php?f=3&t=16473&start=20#p131778

the mapping to a cylinder or a sphere is not a big deal but still not done
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microelly2
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Re: organic, irregular, asymmetrical shapes?

Postby microelly2 » Tue Nov 08, 2016 3:41 pm

example: random generated cylindric and spheric nurbs
bp_185.png
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bp_186.png
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The configuration will be similar to the plane nurbs editor
bp_187.png
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asia
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Re: organic, irregular, asymmetrical shapes?

Postby asia » Wed Nov 09, 2016 7:28 am

microelly2 wrote:example: random generated cylindric and spheric nurbs
bp_185.pngbp_186.png

The configuration will be similar to the plane nurbs editor
bp_187.png
That is exactly what I'm looking for, but... I can't find it ;)
where is the nurbs editor? How to turn it on?
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microelly2
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Re: organic, irregular, asymmetrical shapes?

Postby microelly2 » Wed Nov 09, 2016 7:41 am

I have added yesterday methods to generate sphere and cylinder mappings
but I need still some tests and some work to get the right poles and knotes when I make the surface periodic(closed).
Fine tuning of the pole editor is required too.
In this step I will add a mapping to a torus too because it's periodic in both dimensions.
Another idea is to store the configration data (pole heights and weights) into a spreadsheet and to connect it with the nurbs.

the results then will be published there
https://github.com/microelly2/freecad-nurbs
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microelly2
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Re: organic, irregular, asymmetrical shapes?

Postby microelly2 » Wed Nov 09, 2016 4:16 pm

The worm test (modified torus):
bp_193.png
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periodic in both dimensions
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Re: organic, irregular, asymmetrical shapes?

Postby microelly2 » Sat Nov 12, 2016 7:57 pm