import { vec3 } from "gl-matrix";
import { IWire } from "./IWire";
/**
 * 管道线框
 */
export declare class PipeWire implements IWire {
    private _spine;
    private _left_spine;
    private _right_spine;
    private _radius;
    private _normal;
    get radius(): number;
    set radius(r: number);
    get long_spine(): vec3[];
    get spine(): vec3[];
    constructor(spine: vec3[], radius: number, normal?: vec3);
    private _points;
    get points(): Float32Array;
    point_changed: () => void;
    private _set_points;
    /**
     * P = O1 + t1*D1; P = O2 + t2*D2
     * t1*D1 - t2*D2 = O2 - O1;
     * @param o1
     * @param d1
     * @param o2
     * @param d2
     */
    private _get_insect;
    private _get_spine;
    private _project;
}