BoundingPlaneConstraint

Extends: Constraint
Defined in: src/constraints/BoundingPlaneConstraint.js:15

Defines an infinite bounding plane which constrains all particles in the system.

var origin = [1.0, 2.0, 5.0]
var normal = [0.0, 1.0, 0.0]
var bounds = BoundingPlaneConstraint.create(origin, normal)
var plane = BoundingPlaneConstraint.create(origin, normal, Infinity)

BoundingPlaneConstraint( origin, normal, [distance] )

src/constraints/BoundingPlaneConstraint.js:15

origin Array (Vec3)

Plane origin
normal Array (Vec3)

Plane normal / orientation
[distance] Float

Maximum positive distance to affect particles

Methods
Properties

applyConstraint( index, p0, p1 ) protected

Defined in Constraint: src/constraints/Constraint.js:90 Apply constraint to one set of particles defining a constrint relation. Called _count times per relaxation loop.

index Int
Constraint set index
p0 Float32Array (Vec3)
Reference to ParticleSystem.positions
p1 Float32Array (Vec3)
Reference to ParticleSystem.positionsPrev

create( ) static

src/constraints/BoundingPlaneConstraint.js:68

Create instance, accepts constructor arguments.

setIndices( indices, [a] )

Defined in Constraint: src/constraints/Constraint.js:73 Set particle indices with Array or list of arguments.

indices Int | Array
Single or many particle indices
[a] Int (*..n)
Particle index

setNormal( x, y, z )

src/constraints/BoundingPlaneConstraint.js:97

Set normal (automatically normalizes vector)

x Float
y Float
z Float

setOrigin( x, y, z )

src/constraints/BoundingPlaneConstraint.js:85

Set origin

x Float
y Float
z Float

_count Int private

src/constraints/Constraint.js:37 Number of constraint relations managed by this instance

_isGlobal Bool private

src/constraints/BoundingPlaneConstraint.js:76

Global constraint flag

_itemSize Int private

src/constraints/Constraint.js:46 Number of particles per constraint relation

_offset Int private

src/constraints/Constraint.js:55 Number of indices to save at beginning of index array

bufferVec3 Float32Array (Vec3) private

src/constraints/BoundingPlaneConstraint.js:55

Vec3 buffer which stores plane origin and normal

distance Float

src/constraints/BoundingPlaneConstraint.js:33

Positive distance from plane within which particles will be constrained.

A value of Infinity will constrain all particles to be inline with the plane, while the default of 0 constrains all particles to space in front of the plane relative to its origin and orientation normal.

Default: 0

friction Float

src/constraints/BoundingPlaneConstraint.js:46

Damping factor to apply to particles being constrained to bounds

Default: 0.05

indices Uint16Array

src/constraints/Constraint.js:29 Particle indices defining constraint relations

Three Point Square ^0.3.3