NURBS Volume can be instantiated by a 3D matrix of control points and degree in U, V, W dimension.

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You can sample a point by pt(double u, double v, double w) or pt(IVec uvw) method.

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You can draw lines in U direction by sampling points using i and i+1.

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You can draw lines in V direction by sampling points using j and j+1.

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You can draw lines in W direction by sampling points using k and k+1.

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You can draw lines in UV direction.

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You can draw diagrid lines in UV direction.

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You can create a NURBS volume from an array of NURBS surface with the same number of control points in U and V. The order of the surfaces matters. The surfaces in the example code are sorted by X coodinates. Note that the importing Rhino file needs to be Rhino 4 version file.

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You can add closed square mesh stick by IG.meshSquareStick(IVec p1, IVec p2, double width), closed circular mesh stick by IG.meshStick(IVec p1, IVec p2, double radius), or open NURBS surface pipe by IG.pipe(IVec p1, IVec p2, double radius).

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