verb2.1.0

Open-source, cross-platform NURBS

Conics
Curve by point interpolation

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Closest point to a curve
Divide a curve by arc length

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Curve-curve intersection
Split a curve
Cylindrical surface
Extruded surface

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Revolved surface
Lofted surface
Adaptive surface tessellation
Mesh-mesh intersection
Mesh slicing
NURBS Surface
Surface boundary curves
Closest point to a surface
Surface Isocurves
Surface-surface intersection
Splitting a surface
Swept surface