import * as THREE from "three";
import { Line2 } from "three/examples/jsm/lines/Line2";
import type { AnnotationVertex } from "./types";
export declare function makeContourLine(verts: AnnotationVertex[], color: string, closed: boolean, container: HTMLElement, epsilon: number, mesh: THREE.Mesh): Line2;
export declare function updateContourLine(line: Line2, verts: AnnotationVertex[], closed: boolean, epsilon: number, mesh: THREE.Mesh): void;
/** Change the color of an existing contour line. */
export declare function setContourColor(line: Line2, color: string): void;