import { vec2 } from 'gl-matrix';
import { BodyInterface, ConstraintClamping, WorldInterface } from '../types';
import { ConstraintBase } from './constraint.base';
export declare class LineConstraint extends ConstraintBase {
    readonly world: WorldInterface;
    readonly bodyA: BodyInterface;
    readonly jointA: vec2;
    readonly bodyB: BodyInterface;
    readonly jointB: vec2;
    readonly axisA: vec2;
    private readonly tangent;
    private readonly pa;
    private readonly pb;
    private readonly u;
    private readonly ra;
    private readonly rb;
    constructor(world: WorldInterface, bodyA: BodyInterface, jointA: vec2, bodyB: BodyInterface, jointB: vec2, axisA: vec2);
    getJacobian(out: Float32Array): void;
    getPushFactor(dt: number, strength: number): number;
    getClamping(): ConstraintClamping;
}