Class BoundingBox

constructor

• new BoundingBox(center?: Vec3, halfExtents?: Vec3): BoundingBox

• Create a new BoundingBox instance. The bounding box is axis-aligned.

  Parameters

  • Optionalcenter: Vec3 = ...

    Center of box. The constructor takes a reference of this parameter.
  • OptionalhalfExtents: Vec3 = ...

    Half the distance across the box in each axis. The constructor takes a reference of this parameter. Defaults to 0.5 on each axis.

  Returns BoundingBox

center

halfExtents

add

• add(other: BoundingBox): void

• Combines two bounding boxes into one, enclosing both.

  Parameters

  • other: BoundingBox

    Bounding box to add.

  Returns void

clone

• clone(): BoundingBox

• Returns a clone of the AABB.

  Returns BoundingBox

  A duplicate AABB.

compute

• compute(vertices: number[] | Float32Array, numVerts?: number): void

• Compute the size of the AABB to encapsulate all specified vertices.

  Parameters

  • vertices: number[] | Float32Array

    The vertices used to compute the new size for the AABB.
  • OptionalnumVerts: number

    Number of vertices to use from the beginning of vertices array. All vertices are used if not specified.

  Returns void

containsPoint

• containsPoint(point: Vec3): boolean

• Test if a point is inside a AABB.

  Parameters

  • point: Vec3

    Point to test.

  Returns boolean

  True if the point is inside the AABB and false otherwise.

copy

• copy(src: BoundingBox): void

• Copies the contents of a source AABB.

  Parameters

  • src: BoundingBox

    The AABB to copy from.

  Returns void

getMax

• getMax(): Vec3

• Return the maximum corner of the AABB.

  Returns Vec3

  Maximum corner.

getMin

• getMin(): Vec3

• Return the minimum corner of the AABB.

  Returns Vec3

  Minimum corner.

intersects

• intersects(other: BoundingBox): boolean

• Test whether two axis-aligned bounding boxes intersect.

  Parameters

  • other: BoundingBox

    Bounding box to test against.

  Returns boolean

  True if there is an intersection.

intersectsBoundingSphere

• intersectsBoundingSphere(sphere: BoundingSphere): boolean

• Test if a Bounding Sphere is overlapping, enveloping, or inside this AABB.

  Parameters

  • sphere: BoundingSphere

    Bounding Sphere to test.

  Returns boolean

  True if the Bounding Sphere is overlapping, enveloping, or inside the AABB and false otherwise.

intersectsRay

• intersectsRay(ray: Ray, point?: Vec3): boolean

• Test if a ray intersects with the AABB.

  Parameters

  • ray: Ray

    Ray to test against (direction must be normalized).
  • Optionalpoint: Vec3

    If there is an intersection, the intersection point will be copied into here.

  Returns boolean

  True if there is an intersection.

setFromTransformedAabb

• setFromTransformedAabb(aabb: BoundingBox, m: Mat4, ignoreScale?: boolean): void

• Set an AABB to enclose the specified AABB if it were to be transformed by the specified 4x4 matrix.

  Parameters

  • aabb: BoundingBox

    Box to transform and enclose.
  • m: Mat4

    Transformation matrix to apply to source AABB.
  • ignoreScale: boolean = false

    If true is specified, a scale from the matrix is ignored. Defaults to false.

  Returns void

setMinMax

• setMinMax(min: Vec3, max: Vec3): void

• Sets the minimum and maximum corner of the AABB. Using this function is faster than assigning min and max separately.

  Parameters

  • min: Vec3

    The minimum corner of the AABB.
  • max: Vec3

    The maximum corner of the AABB.

  Returns void

StaticcomputeMinMax

• computeMinMax(
      vertices: number[] | Float32Array,
      min: Vec3,
      max: Vec3,
      numVerts?: number,
  ): void

• Compute the min and max bounding values to encapsulate all specified vertices.

  Parameters

  • vertices: number[] | Float32Array

    The vertices used to compute the new size for the AABB.
  • min: Vec3

    Stored computed min value.
  • max: Vec3

    Stored computed max value.
  • OptionalnumVerts: number = ...

    Number of vertices to use from the beginning of vertices array. All vertices are used if not specified.

  Returns void