import * as THREE from 'three';
import { ContextManager, Event, Observable } from '@zcomponent/core';
import { Object3D } from '../../../components/Object3D';
import { Curve3 } from '../../../components/curves/Curve3';
interface CatmullRomCurve3HelperProps {
    node: Curve3;
}
export declare class Curve3LineHelper extends Object3D {
    constructorProps: CatmullRomCurve3HelperProps;
    onAddSegment: Event<[t: number, position: [x: number, y: number, z: number]]>;
    element: THREE.Group;
    edit: Observable<boolean, never>;
    color: Observable<`#${string}`, never>;
    thickness: Observable<number, never>;
    divisions: Observable<number, never>;
    private _lineMaterial;
    private _lineGeometry;
    private _lineGeometryCount;
    private _line;
    private _curveVersion;
    private _index;
    private _position;
    private _lineHovered;
    private _middleSplitButton;
    constructor(contextManager: ContextManager, constructorProps: CatmullRomCurve3HelperProps);
    private _updateMaterial;
    private _updateEnabled;
    private _pointerMove;
    private _updateStructure;
    private _updateFrame;
    private _calculateFactorForWorldPosition;
    dispose(): never;
}
export {};