import { Geometry } from "../Geometry.ts";
interface CurvePoint {
    x: number;
    y: number;
    z?: number;
}
interface TubeCurve {
    getPointAt: (u: number) => CurvePoint;
    getTangentAt: (u: number) => CurvePoint;
}
/**
 * Generates a tube that extrudes along a 3D curve path using
 * rotation-minimizing frames to avoid unnecessary twisting.
 */
export declare class TubeGeometry extends Geometry {
    constructor(path: TubeCurve, tubularSegments?: number, radius?: number, radialSegments?: number, closed?: boolean);
}
export {};
//# sourceMappingURL=TubeGeometry.d.ts.map