T-Splines Opensource Library

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 From:  adamio
8078.1 
A new library has been released in order to manipulate T-splines : https://github.com/GrapeTec/T-SPLINE

http://forum.freecadweb.org/viewtopic.php?f=10&t=16982
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 From:  bemfarmer
8078.2 In reply to 8078.1 
There is a paper here: http://fulltext.study/download/439400.pdf

I thought that tsplines was patented?

- Brian
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 From:  Michael Gibson
8078.3 In reply to 8078.2 
Yeah there is a patent: https://www.google.com/patents/US7274364

- Michael
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 From:  Karsten (KMRQUS)
8078.4 In reply to 8078.2 
Hello Brian,

If I understood it right, it isn't an implementation for manipulating and processing in a CAD-application. It's more a proposal of a special datastructure for import/export T-Splines between different applications with a Step-extension. So I don't know if it touches the Sederberg patent. I've compiled the code, but the STEP output needs an application which supports the special EXPRESS-extensions. Very interesting for people with a lot of mathematical knowledge or a lot of time -so nothing for me.

Have a nice day
Karsten
p.s.: Thanks for the link - I didn't find it:-)

EDITED: 4 Sep 2016 by KMRQUS

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 From:  bemfarmer
8078.5 In reply to 8078.4 
Thank you Karsten.
(2003 + 20) - 2016 = 2023 - 2016 = 7 years +/-.
- Brian
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 From:  Karsten (KMRQUS)
8078.6 In reply to 8078.5 
Hello Brian,

I agree with you - for the next 7 years we will find some other interesting stuff;-) or the forum will bring them to us:-)

Have a nice day
Karsten

Maybe something like that?

EDITED: 5 Sep 2016 by KMRQUS

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 From:  Frenchy Pilou (PILOU)
8078.7 
Sure I have not said that will easy or even possible! :)
For the moment we have yet our eyes! ;)
Thx for the time's reflexion!
---
Pilou
Is beautiful that please without concept!
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