@revideo/2d / curves / CubicBezierSegment

Class: CubicBezierSegment

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:9

A spline segment representing a cubic Bézier curve.

Extends

PolynomialSegment

Constructors

Constructor

new CubicBezierSegment(p0, p1, p2, p3): CubicBezierSegment

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:17

Parameters

p0

Vector2

p1

Vector2

p2

Vector2

p3

Vector2

Returns

CubicBezierSegment

Overrides

PolynomialSegment.constructor

Properties

curve

protected readonly curve: Polynomial2D

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:18

Inherited from

QuadBezierSegment.curve

length

protected readonly length: number

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:19

Inherited from

QuadBezierSegment.length

p0

readonly p0: Vector2

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:18

p1

readonly p1: Vector2

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:19

p2

readonly p2: Vector2

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:20

p3

readonly p3: Vector2

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:21

pointSampler

protected readonly pointSampler: UniformPolynomialCurveSampler

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:9

Inherited from

PolynomialSegment.pointSampler

Accessors

arcLength

Get Signature

get arcLength(): number

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:11

Returns

number

Inherited from

PolynomialSegment.arcLength

points

Get Signature

get points(): Vector2[]

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:13

Returns

Vector2[]

Overrides

PolynomialSegment.points

Methods

doDraw()

protected doDraw(context): void

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:60

Parameters

context

CanvasRenderingContext2D | Path2D

Returns

void

Overrides

PolynomialSegment.doDraw

draw()

draw(context, start?, end?, move?): [CurvePoint, CurvePoint]

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:77

Parameters

context

CanvasRenderingContext2D | Path2D

start?

number = 0

end?

number = 1

move?

boolean = true

Returns

[CurvePoint, CurvePoint]

Inherited from

PolynomialSegment.draw

eval()

eval(t): CurvePoint

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:34

Evaluate the polynomial at the given t value.

Parameters

t

number

The t value at which to evaluate the curve.

Returns

CurvePoint

Inherited from

PolynomialSegment.eval

getBBox()

getBBox(): BBox

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:25

Returns

BBox

Inherited from

PolynomialSegment.getBBox

getPoint()

getPoint(distance): CurvePoint

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:52

Parameters

distance

number

Returns

CurvePoint

Inherited from

PolynomialSegment.getPoint

split()

split(t): [PolynomialSegment, PolynomialSegment]

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:37

Split the curve into two separate polynomials at the given t value. The two resulting curves form the same overall shape as the original curve.

Parameters

t

number

The t value at which to split the curve.

Returns

[PolynomialSegment, PolynomialSegment]

Overrides

PolynomialSegment.split

tangent()

tangent(t): Vector2

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:73

Return the tangent of the point that sits at the provided t value on the curve.

Parameters

t

number

The t value at which to evaluate the curve.

Returns

Vector2

Inherited from

PolynomialSegment.tangent

transformPoints()

transformPoints(matrix): Vector2[]

Defined in: 2d/src/lib/curves/PolynomialSegment.ts:63

Parameters

matrix

DOMMatrix

Returns

Vector2[]

Inherited from

PolynomialSegment.transformPoints

getLength()

protected static getLength(p0, p1, p2, p3): number

Defined in: 2d/src/lib/curves/CubicBezierSegment.ts:64

Parameters

p0

Vector2

p1

Vector2

p2

Vector2

p3

Vector2

Returns

number