# NURBS evaluation toolkit in Ruby

**URL:** <https://www.ruby-forum.com/t/nurbs-evaluation-toolkit-in-ruby/97031>\
**Category:** Ruby\
**Created:** [January 25, 2006, 5:20am UTC](https://www.ruby-forum.com/t/nurbs-evaluation-toolkit-in-ruby/97031 "2006-01-25T05:20:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [January 25, 2006, 5:20am UTC](https://www.ruby-forum.com/t/nurbs-evaluation-toolkit-in-ruby/97031/1 "2006-01-25T05:20:07Z")

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Hi,

I wish to do some computational geometry prototyping using Ruby in  
the area of NURBS (Non-Uniform Rational B-Splines)

Given a NURBS surface, I wish to be able to evaluate at a given (u,v)  
coordinate, the surface’s position, normal and tangent/derivatives.

Are there such Ruby package available?

Cheers