Class Spline

public getControlPointsArray(): Array<number[]>

Returns an array with triplets of x, y, z coordinates that correspond to the current control points.

Returns

Array<number[]>

public getLength(nSubDivisions?: number): { chunks: number[]; total: number; }

Returns the length of the spline when using nSubDivisions.

Parameters

• nSubDivisions?: number optional

  number of subdivisions between control points. Default is 100.

Returns

{ chunks: number[]; total: number; }

public getPoint(k: number): SplineControlPoint

Return the interpolated point at k.

Parameters

• k: number

  point index

Returns

SplineControlPoint

public initFromArray(a: Array<number[]>)

Initialises using the data in the array as a series of points. Each value in a must be another array with three values, where a[n] is v, the value for the nth point, and v[0], v[1] and v[2] are the x, y and z coordinates of that point n, respectively.

Parameters

• a: Array<number[]>

  array of triplets containing x, y, z coordinates

public reparametrizeByArcLength(samplingCoef: number)

Modifies the spline so that it looks similar to the original but has its points distributed in such way that moving along the spline it's done at a more or less constant speed. The points should also appear more uniformly spread along the curve. This is done by resampling the original spline, with the density of sampling controlled by samplingCoef. Here it's interesting to note that denser sampling is not necessarily better: if sampling is too high, you may get weird kinks in curvature.

Parameters

• samplingCoef: number

  how many intermediate values to use between spline points