Class NurbsSurfaceKnotList

constructor

• new NurbsSurfaceKnotList(): NurbsSurfaceKnotList

  Returns NurbsSurfaceKnotList

count

isClampedEnd

isClampedStart

createPeriodicKnots

• createPeriodicKnots(knotSpacing: number): boolean

  Parameters

  • knotSpacing: number

    Spacing of subsequent knots.

  Returns boolean

  true on success, false on failure.

  Description

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

createUniformKnots

• createUniformKnots(knotSpacing: number): boolean

  Parameters

  • knotSpacing: number

    Spacing of subsequent knots.

  Returns boolean

  true on success, false on failure.

  Description

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

get

• get(index: number): number

  ...

  Parameters

  • index: number

  Returns number

insertKnot

• insertKnot(value: number): boolean

  Parameters

  • value: number

    Knot value to insert.

  Returns boolean

  true on success, false on failure.

  Description

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

knotMultiplicity

• knotMultiplicity(index: number): number

  Parameters

  • index: number

    Index of knot to query.

  Returns number

  The multiplicity (valence) of the knot.

  Description

  Get knot multiplicity.

set

• set(index: number, knot: number): void

  ...

  Parameters

  • index: number
  • knot: number

  Returns void

superfluousKnot

• superfluousKnot(start: boolean): number

  Parameters

  • start: boolean

    true if the query targets the first knot. Otherwise, the last knot.

  Returns number

  A component.

  Description

  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

toList

• toList(): number[]

  ...

  Returns number[]