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Rhino.Geometry.Collections

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NurbsSurfaceKnotList

NurbsSurfaceKnotList class

Provides access to the knot vector of a NURBS surface.

Derived Classes:

Namespace: Rhino.Geometry.Collections
NurbsSurfaceKnotList: references

Properties (5)

ClampedAtEnd

Determines if a knot vector is clamped.

ClampedAtStart

Determines if a knot vector is clamped.

Count

Gets the total number of knots in this curve.

Item

Gets or sets the knot vector value at the given index.

KnotStyle

Gets the style of the knot vector.

Methods (11)

CreatePeriodicKnots(double knotSpacing)

Compute a clamped, uniform, periodic knot vector based on the current degree and control point count. Does not change values of control vertices.

CreateUniformKnots(double knotSpacing)

Compute a clamped, uniform knot vector based on the current degree and control point count. Does not change values of control vertices.

EnsurePrivateCopy()

If you want to keep a copy of this class around by holding onto it in a variable after a command completes, call EnsurePrivateCopy to make sure that this class is not tied to the document. You can call this function as many times as you want.

EpsilonEquals(NurbsSurfaceKnotList other, double epsilon)

Check that all values in other are within epsilon of the values in this

InsertKnot(double value, int multiplicity)

Inserts a knot and update control point locations. Does not change parameterization or locus of curve.

InsertKnot(double value)

Inserts a knot and update control point locations. Does not change parameterization or locus of curve.

KnotMultiplicity(int index)

Get knot multiplicity.

RemoveKnots(int index0, int index1)

Remove knots from the knot vector and adjusts the remaining control points to maintain surface position as closely as possible. The knots from Knots[index0] through Knots[index1 - 1] will be removed.

RemoveKnotsAt(double u, double v)

Remove knots from the surface and adjusts the remaining control points to maintain surface position as closely as possible.

RemoveMultipleKnots(int minimumMultiplicity, int maximumMultiplicity, double tolerance)

Remove multiple knots from this surface

SuperfluousKnot(bool start)

Computes the knots that are superfluous because they are not used in NURBs evaluation. These make it appear so that the first and last surface spans are different from interior spans.
http://wiki.mcneel.com/developer/onsuperfluousknot

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