Class Ray

constructor

• new Ray(...args): Ray

• Ray may be constructed by setting an origin point and a normal vector, so that any point x on a ray fit an equation:
  (x - origin) * vector = 0
  Ray defined by constructor is a right semi-infinite line with respect to the normal vector
  If normal vector is omitted ray is considered horizontal (normal vector is (0,1)).
  Don't be confused: direction of the normal vector is orthogonal to the ray
  

  Parameters

  • Rest...args: [] | [Point, Vector] | [Point]

  Returns Ray

norm

pt

box

• get box(): Box

• Returns half-infinite bounding box of the ray

  Returns Box

  Bounding box

end

• get end(): undefined

• Ray has no end point?

  Returns undefined

length

• get length(): number

• Return positive infinity number as length

  Returns number

name

• get name(): string

• Shape name

  Returns string

  name of the shape

slope

• get slope(): number

• Slope of the ray - angle in radians between ray and axe x from 0 to 2PI

  Returns number

  slope of the line

start

• get start(): Point

• Return ray start point

  Returns Point

  Ray start point

clone

• clone(): Ray

• Return new cloned instance of ray

  Returns Ray

contains

• contains(pt): boolean

• Returns true if point belongs to ray

  Parameters

  • pt: Point

    Query point

  Returns boolean

intersect

• intersect(shape): Point[]

• Returns array of intersection points between ray and another shape

  Parameters

  • shape: Shape<any>

    Shape to intersect with ray

  Returns Point[]

  array of intersection points

rotate

• rotate(angle, center?): Ray

• Return new line rotated by angle

  Parameters

  • angle: number

    angle in radians
  • center: Point = ...

    center of rotation

  Returns Ray

split

• split(pt): [] | [Segment, Ray] | [Ray]

• Split ray with point and return array of segment and new ray

  Parameters

  • pt: Point

  Returns [] | [Segment, Ray] | [Ray]

  [Segment,Ray]

transform

• transform(m): Ray

• Return new ray transformed by affine transformation matrix

  Parameters

  • m: Matrix

    affine transformation matrix (a,b,c,d,tx,ty)

  Returns Ray