PointConstraint

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

Defines one or many relationships between a fixed point and single particles.

var point = [0.5, 10.0, 3.0]
var a = 0, b = 1
var single = PointConstraint.create(point, a)
var many = PointConstraint.create(point, [a, b])

PointConstraint( position, a )

src/constraints/PointConstraint.js:15

position Array (Vec3)

Point position
a Int | Array

Particle index or list of many indices

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/PointConstraint.js:49

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

setPosition( x, y, z )

src/constraints/PointConstraint.js:57

Set point position.

x Float
y Float
z Float

_count Int private

src/constraints/Constraint.js:37

Number of constraint relations managed by this instance

_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/PointConstraint.js:36

Vec3 buffer which stores point position.

indices Uint16Array

src/constraints/Constraint.js:29

Particle indices defining constraint relations

Three Point Square ^0.3.3