import * as THREE from 'three';
import { Helper } from '../Helper';
export interface TransitionPoint {
    matrixWorld: THREE.Matrix4;
    color: string;
}
export interface TransitionPointOption {
    pointRadius: number;
    axisRadius: number;
    axisLength: number;
}
export declare class TransitionPointHelper extends Helper<TransitionPoint> {
    _options: TransitionPointOption;
    constructor(options: TransitionPointOption);
    onAdded(): Promise<void>;
    onRemoved(): void;
    initializeHandler(helperName: string): void;
    updateHandler(deltaTime: number, helperName: string): void;
    onDetach(helperName: string): void;
}