/**
 * @Author: Caven
 * @Date: 2021-07-17 18:02:35
 */
import MeasureBase from "../MeasureBase";
declare class TriangleHeight extends MeasureBase {
    _maxAnchorSize: number;
    _helpLinePositions: any[];
    _helpLine: Cesium.Entity;
    _lengthLabel: Cesium.Entity;
    _heightLabel: Cesium.Entity;
    _distanceLabel: Cesium.Entity;
    constructor();
    /**
     *
     * @param delegate
     * @private
     */
    _onDrawStop(delegate: any): void;
    /**
     *
     * @param positions
     * @private
     */
    _onCalc(positions: any): void;
    /**
     *
     * @param measure
     * @param options
     * @returns {TriangleHeight}
     */
    start(measure: any, options: any): this;
}
export default TriangleHeight;