import { Vec3 } from '../math/Vec3';
export declare enum AxisPlane {
    XY = "xy",
    XZ = "xz",
    YZ = "yz",
    XYZ = "xyz"
}
export interface ITriangulationOption {
    feature?: AxisPlane;
    dim?: number;
    normal?: Vec3;
}
/**
 * 三角剖分  earcut.js
 * @param {Array} boundary 边界
 * @param {Array<Array>} holes 洞的数组
 * @param {options:{feature,dim,normal}} feature 选择平平面
 * @returns {Array<Number>} 三角形索引数组
 */
export declare function triangulation(inboundary: any, holes?: any[], options?: ITriangulationOption): number[];