Class Arc

Immutable arc.

Hierarchy (View Summary)

Curve
- Arc

Implements

IArc

Index

Constructors

Properties

angle initialSurfaceNormal plane radius

Accessors

closed length type default

Methods

frame normal normalize point projectedAngle projectedLength segmentIndex tangent

Constructors

constructor

new Arc(
    plane: Plane,
    angle: number,
    radius: number,
    initialSurfaceNormal?: Vec3,
): Arc
Constructor.
Parameters
- plane: Plane
  The plane in which the arc lies.
- angle: number
  The angle for the arc.
- radius: number
  The uniform radius for the arc.
- initialSurfaceNormal: Vec3 = Vec3.zero
  The (optional) initial surface normal for the arc.
Returns Arc
Overrides Curve.constructor

Properties

`Readonly`angle

angle: number

The angle for the arc.

`Readonly`initialSurfaceNormal

initialSurfaceNormal: Vec3

The initial surface normal for the arc.

`Readonly`plane

plane: Plane

The plane in which the arc lies.

`Readonly`radius

radius: number

The uniform radius for the arc.

Accessors

closed

get closed(): boolean
Whether the arc is a complete circle.

Returns boolean
Overrides Curve.closed

length

get length(): number
The arc length.

Returns number
Overrides Curve.length

type

get type(): CurveType
The type of the curve.

Returns CurveType
Overrides Curve.type

`Static`default

get default(): Arc
Returns Arc

Methods

frame

frame(s: number): Frame
Evaluates the frame at the specified distance.
Parameters
- s: number
  The distance.
Returns Frame
The frame.

Overrides Curve.frame

normal

normal(s: number): Vec3
Evaluates the normal to the arc at the specified arc-length.
Parameters
- s: number
  The arc-length.
Returns Vec3
The normal to the arc.

Overrides Curve.normal

`Protected`normalize

normalize(s: number): number
Parameters
- s: number
Returns number
Inherited from Curve.normalize

point

point(s: number): Vec3
Evaluates the point on the arc at the specified arc-length.
Parameters
- s: number
  The arc-length.
Returns Vec3
The point on the arc.

Overrides Curve.point

projectedAngle

projectedAngle(point: IVec3): number
Calculates the angle for the specified point when projected onto the arc.
Parameters
- point: IVec3
  The point.
Returns number
The angle for the projected point.

projectedLength

projectedLength(point: IVec3): number
Calculates the arc-length for the specified point when projected onto the arc.
Parameters
- point: IVec3
  The point.
Returns number
The arc-length for the projected point.

Overrides Curve.projectedLength

`Protected`segmentIndex

segmentIndex(s: number, distances: number[]): number
Parameters
- s: number
- distances: number[]
Returns number
Inherited from Curve.segmentIndex

tangent

tangent(s: number): Vec3
Evaluates the tangent to the arc at the specified arc-length.
Parameters
- s: number
  The arc-length.
Returns Vec3
The tangent to the arc.

Overrides Curve.tangent