Class LineCurve3

public getLength(): number

Get total curve arc length

Returns

number

public getLengths(divisions?: number): Array<number>

Get list of cumulative segment lengths

Parameters

• divisions?: number optional

Returns

Array<number>

public getPointAt(u: number): Vector

Returns a vector for point at relative position in curve according to arc length getPointAt(u: number): T;

Parameters

• u: number

Returns

Vector

public getPoints(divisions?: number): Vector[]

Get sequence of points using getPoint( t ) getPoints(divisions?: number): T[];

Parameters

• divisions?: number optional

Returns

Vector[]

public getSpacedPoints(divisions?: number): Vector[]

Get sequence of equi-spaced points using getPointAt( u ) getSpacedPoints(divisions?: number): T[];

Parameters

• divisions?: number optional

Returns

Vector[]

public getTangent(t: number): Vector

Returns a unit vector tangent at t. If the subclassed curve do not implement its tangent derivation, 2 points a small delta apart will be used to find its gradient which seems to give a reasonable approximation getTangent(t: number): T;

Parameters

• t: number

Returns

Vector

public getTangentAt(u: number): Vector

Returns tangent at equidistance point u on the curve getTangentAt(u: number): T;

Parameters

• u: number

Returns

Vector

public getUtoTmapping(u: number, distance: number): number

Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equi distance

Parameters

• u: number

• distance: number

Returns

number

public updateArcLengths()

Update the cumlative segment distance cache