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See also this animated version. IGES, STEP, ACIS, and PHIGS. NURBS tools are also found in various 3D modeling the nurbs book pdf download...

See also this animated version. IGES, STEP, ACIS, and PHIGS. NURBS tools are also found in various 3D modeling the nurbs book pdf download animation software packages.


They can be efficiently handled by the computer programs and yet allow for easy human interaction. NURBS surfaces are functions of two parameters mapping to a surface in three-dimensional space.

The shape of the surface is determined by control points. NURBS surfaces can represent, in a compact form, simple geometrical shapes. T-splines and subdivision surfaces are more suitable for complex organic shapes because they reduce the number of control points twofold in comparison with the NURBS surfaces. In general, editing NURBS curves and surfaces is highly intuitive and predictable.

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