declare type TerrainAryType = {
    url: string;
    type: 'global';
    height?: number;
    otherOptios?: Cesium.CesiumTerrainProvider.ConstructorOptions;
    verticalExaggeration?: number;
} | {
    url: string;
    range: [number, number, number, number];
    type: 'region';
    height: number;
    otherOptios?: Cesium.CesiumTerrainProvider.ConstructorOptions;
    verticalExaggeration?: number;
};
declare type materialColorType = {
    height: number;
    color: string;
};
declare type TerrainInfoTypes = {
    type: 'offline';
    url: string;
    otherOptios?: Cesium.CesiumTerrainProvider.ConstructorOptions;
    verticalExaggeration?: number;
    materialColor?: materialColorType[];
    legendMountElement?: HTMLElement | null;
    enableLighting?: boolean;
} | {
    type: 'online';
    materialColor?: materialColorType[];
    legendMountElement?: HTMLElement | null;
    enableLighting?: boolean;
    verticalExaggeration?: number;
};
/**
 * @param {*} viewerMap viewer实体
 * @param {*} terrainAry 一个数组对象，{url,type,range}  url:地形的地址，type: global | region 全球和区域，range：区域的范围
 * @returns
 * 因为所里项目大多是离线的，导致地形不是全的，所以在某一区域只加载某一区域的精细地形
 */
export declare function useLoadTerrain(): {
    loadTerrain: (viewer: Cesium.Viewer, terrainAry: TerrainAryType[]) => Promise<boolean>;
    loadSeafloorTerrain: (viewer: Cesium.Viewer, terrainInfo: TerrainInfoTypes) => Promise<boolean>;
    removeTerrain: (viewer: Cesium.Viewer) => void;
    legendCanvans: any;
};
export {};