xgis-ol

import { Coordinate } from "ol/coordinate"; import { Extent } from "ol/extent"; import Geometry from "ol/geom/Geometry"; import { ProjectionLike } from "ol/proj"; import Projection from "ol/proj/Projection"; import WMTSTileGrid from "ol/tilegrid/WMTS"; import { IProjInfo, ITileGridSchema } from "./Models"; import Feature from "ol/Feature"; /** * 用于投影和矩阵集的工具 */ export default class PrjGridTool { /** * 缓存投影对象 */ static prjMap: Map<string, Projection>; /** * 瓦片矩阵集缓存 */ static tileGridMap: Map<string, WMTSTileGrid>; /** * */ static EPSG4326Extent: Extent; static EPSG3857Extent: Extent; /** * 初始化获得地图投影对象 * @param prjInfo * @returns */ static getProjection(prjInfo?: IProjInfo): Projection; /** * 将当前投影的坐标，转为经纬度 * @param currentPrjCoord 当前投影的坐标 * @param currentPrj 当前投影 * @returns */ static toLonLat(currentPrjCoord: Coordinate, currentPrj: ProjectionLike): Coordinate; /** * 经纬度坐标转目标投影，与fromLonLatCoordinate方法相同 * @param center84 * @param targetProjection * @returns */ static fromLonLat(center84: Coordinate, targetProjection: ProjectionLike): Coordinate; /** * 获的目标投影的坐标点 * @param center84 WGS84中心点 * @param targetProjection 目标视图投影 * @returns */ static fromLonLatCoordinate(center84: Coordinate, targetProjection: ProjectionLike): Coordinate; /** * 将某一投影下坐标，转化到另一投影下 * @param coord 坐标 * @param fromProjection 源投影 * @param toProjection 目标投影 * @returns */ static transformCoordinate(coord: Coordinate, fromProjection: ProjectionLike, toProjection: ProjectionLike): Coordinate; /** * 根据经纬度范围，获取投影的Extent * @param extent84 经纬度范围 * @param targetPrj 目标投影对象 * @returns */ static getExtentFrom4326(extent84: Extent, targetPrj?: ProjectionLike): number[]; /** * 转换Extent的投影,与getExtentFromTransform方法相同 * @param fromPrjExtent 当前投影的Extent * @param fromPrj 当前投影 * @param targetPrj 目标投影 */ static transformExtent(fromPrjExtent: Extent, fromPrj: ProjectionLike, targetPrj?: ProjectionLike): void; /** * 转换Extent的投影 * @param extent 当前投影的Extent * @param fromPrj 当前投影 * @param targetPrj 目标投影 * @returns */ static getExtentFromTransform(extent: Extent, fromPrj: ProjectionLike, targetPrj?: ProjectionLike): number[]; /** * 对ol/geom里各个矢量进行重投影变化 * @param geom 矢量对象 * @param fromPrj 原投影 * @param targetPrj 目标投影 * @returns */ static transformGeometry(geom: Geometry, fromPrj: ProjectionLike, targetPrj?: ProjectionLike): Geometry; /** * 对单个Feature进行转投影变换 * @param feature 单个Feature * @param fromPrj 原投影 * @param targetPrj 目标投影 * @returns */ static transformFeature(feature: Feature, fromPrj: ProjectionLike, targetPrj?: ProjectionLike): Feature; /** * 对要素列表进行投影变换 * @param featureList 要素列表 * @param fromPrj 原始投影 * @param targetPrj 目标投影 * @returns */ static transformFeatures(featureList: Feature[], fromPrj: ProjectionLike, targetPrj?: ProjectionLike): Feature[]; /** * 创建WMTS图层的WMTSTileGrid * @param wmtsLyrInfo WMTS图层的元数据信息 * @returns WMTSTileGrid 对象 */ static createWMTSTileGrid(tileSchema: ITileGridSchema): WMTSTileGrid; /** * 获得天地图瓦片矩阵集 * @param isWebMercator 默认是墨卡托的 * @returns */ static getTDTTileGrid(isWebMercator?: boolean): WMTSTileGrid; /** * 在线查询EPSG，并构建Projection对象和isGeographic * @param epsgCode Code值，例如:4490 4326 * @param epsgSearchURL */ static getProjectionOnline(epsgNum: string, epsgSearchURL?: string): Promise<{ projection: Projection; isGeographic: boolean; }>; /** * 判断投影是否是地理投影 * @param projection 投影对象 * @returns true:地理 false:投影 */ static isGeographic(projection: Projection): boolean; /** * 请求WMTS GetCapabilities，并解析XML为对象 * 例如：https://image.gis.digsur.com/IMGWMTS?layer=s:test789&Service=WMTS&Request=GetCapabilities * @param wmtsURL wmts服务地址，例如https://image.gis.digsur.com/IMGWMTS * @param layer 图层名,例如：s:test1 */ static getWMTSCapabilities(wmtsURL: string, layer: string): Promise<any>; /** * 获取比例尺=》分辨率转换参数 * @param isGeographic 是否是地理投影，默认为true * @param isChinaDPI 是否是中国dpi 96,默认为true * @returns */ static getScaleToResolutionParam(isGeographic?: boolean, isChinaDPI?: boolean): number; /** * 通过分辨率，获取当前级别的比例尺 * 1:Scale * @param resolution 分辨率 * @param isGeographic 是否地理投影 * @param isChinaDPI 是否中国96 DPI */ static computeScaleByResolution(resolution: number, isGeographic?: boolean, isChinaDPI?: boolean): number; /** *通过地图比例尺，计算地面分辨率 *通过比例尺，获取当前分辨率 * @param scale 比例尺 * @param isGeographic 是否地理投影 * @param isChinaDPI 是否中国96 DPI * @returns 地面分辨率 */ static computeResolutionByScale(scale: number, isGeographic?: boolean, isChinaDPI?: boolean): number; /** * 解析WMTS XML元数据对象，为WMTSLayer加载需要的options对象 * @param wmtsCap WMTS XML元数据对象 * @param isChinaDPI 是否是中国96dpi还是国际标准，默认为true，中国标准 * @param epsgSearchURL epsg查询地址，默认为 https://epsg.gis.digsur.com/epsg * @returns */ static getXMLOptionsFromCapabilities(wmtsCap: any, isChinaDPI?: boolean, epsgSearchURL?: string): Promise<{ wmtsURL: any; layerName: any; layerExtent: any; tilegrid: WMTSTileGrid; projection: any; style: any; format: any; tileMatrixSet: any; }>; }