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NURB

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NURB
(NonUniform Rational B-spline) A type of b-spline that is very flexible. NURB curves can represent any shape from a straight line to a circle or ellipse with very little data. They can also be used for guiding animation paths, for approximating data and for controlling the shapes of 3D surfaces. NURBs are known for their ability to control the smoothness of a curve. See spline and b-spline.


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It includes NURB surface and solid modeling tools, including tools for skinning, lofting, covering, capping, filling, G1/G2 (tangent/curvature) surface edge matching, surface analysis, and Booleans.
Nurbs Numerical control spurred the development of computer-aided [geometric] design--CAD--employing spline algorithms based on polynomial methods.
CADKEY Corporation reports significant performance improvements in three key areas: 1) solid model shading is up to 100% faster, 2) on average, blending and lofting reveal 20% increases in speed, and 3) optimal NURB computation results in accelerated surface modeling, sweeping and lofting.
 
 
 
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