@vuemap/vue-amap/es/utils/GPSUtil.mjs.map

高德地图vue3版本封装

{"version":3,"file":"GPSUtil.mjs","sources":["../../../utils/GPSUtil.ts"],"sourcesContent":["//坐标转换\r\n// eslint-disable-next-line @typescript-eslint/no-loss-of-precision\r\nconst pi = 3.1415926535897932384626;\r\nconst a = 6378245.0;\r\n// eslint-disable-next-line @typescript-eslint/no-loss-of-precision\r\nconst ee = 0.00669342162296594323;\r\nconst x_pi = pi * 3000.0 / 180.0;\r\nconst R = 6378137;\r\n\r\nexport type ResultLngLat = {\r\n    lng: number\r\n    lat: number\r\n}\r\n\r\n//经纬度转xyz协议瓦片编号\r\nexport function lonLatToTileNumbers (lon_deg: number, lat_deg: number, zoom: number): [number, number] {\r\n    const lat_rad = (pi/180)*lat_deg;     //math.radians(lat_deg)  角度转弧度\r\n    const n = Math.pow(2, zoom);\r\n    const xtile = Math.floor((lon_deg + 180.0) / 360.0 * n);\r\n    const ytile = Math.floor((1.0 - Math.asinh(Math.tan(lat_rad)) / pi) / 2.0 * n);\r\n    return [xtile, ytile];\r\n}\r\n\r\n//xyz协议瓦片编号转经纬度\r\nexport function tileNumbersToLonLat (xtile: number, ytile: number, zoom: number): [number, number] {\r\n    const n = Math.pow(2, zoom);\r\n    const lon_deg = xtile / n * 360.0 - 180.0;\r\n    const lat_rad = Math.atan(Math.sinh(pi * (1 - 2 * ytile / n)));\r\n\r\n    const lat_deg = lat_rad * 180.0 / pi;\r\n    return [lon_deg, lat_deg];\r\n}\r\n\r\n/**百度转84*/\r\nexport function bd09_To_gps84 (lng: number, lat: number) {\r\n    const gcj02 = bd09_To_gcj02(lng, lat);\r\n    const map84 = gcj02_To_gps84(gcj02.lng, gcj02.lat);\r\n    return map84;\r\n}\r\n/**84转百度*/\r\nexport function gps84_To_bd09 (lng: number, lat: number): ResultLngLat {\r\n    const gcj02 = gps84_To_gcj02(lng, lat);\r\n    const bd09 = gcj02_To_bd09(gcj02.lng, gcj02.lat);\r\n    return bd09;\r\n}\r\n/**84转火星*/\r\nexport function gps84_To_gcj02 (lng: number, lat: number): ResultLngLat {\r\n    let dLat = transformLat(lng - 105.0, lat - 35.0);\r\n    let dLng = transformLng(lng - 105.0, lat - 35.0);\r\n    const radLat = lat / 180.0 * pi;\r\n    let magic = Math.sin(radLat);\r\n    magic = 1 - ee * magic * magic;\r\n    const sqrtMagic = Math.sqrt(magic);\r\n    dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);\r\n    dLng = (dLng * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);\r\n    const mgLat = lat + dLat;\r\n    const mgLng = lng + dLng;\r\n    const newCoord = {\r\n        lng: mgLng,\r\n        lat: mgLat\r\n    };\r\n    return newCoord;\r\n}\r\n/**火星转84*/\r\nexport function gcj02_To_gps84 (lng: number, lat: number): ResultLngLat {\r\n    const coord = transform(lng, lat);\r\n    const lontitude = lng * 2 - coord.lng;\r\n    const latitude = lat * 2 - coord.lat;\r\n    const newCoord = {\r\n        lng: lontitude,\r\n        lat: latitude\r\n    };\r\n    return newCoord;\r\n}\r\n/**火星转百度*/\r\nexport function gcj02_To_bd09 (x: number, y: number): ResultLngLat {\r\n    const z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);\r\n    const theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);\r\n    const bd_lng = z * Math.cos(theta) + 0.0065;\r\n    const bd_lat = z * Math.sin(theta) + 0.006;\r\n    const newCoord = {\r\n        lng: bd_lng,\r\n        lat: bd_lat\r\n    };\r\n    return newCoord;\r\n}\r\n/**百度转火星*/\r\nexport function bd09_To_gcj02 (bd_lng: number, bd_lat: number): ResultLngLat {\r\n    const x = bd_lng - 0.0065;\r\n    const y = bd_lat - 0.006;\r\n    const z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);\r\n    const theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);\r\n    const gg_lng = z * Math.cos(theta);\r\n    const gg_lat = z * Math.sin(theta);\r\n    const newCoord = {\r\n        lng: gg_lng,\r\n        lat: gg_lat\r\n    };\r\n    return newCoord;\r\n}\r\n\r\n\r\n\r\nfunction transform (lng: number, lat: number): ResultLngLat {\r\n    let dLat = transformLat(lng - 105.0, lat - 35.0);\r\n    let dLng = transformLng(lng - 105.0, lat - 35.0);\r\n    const radLat = lat / 180.0 * pi;\r\n    let magic = Math.sin(radLat);\r\n    magic = 1 - ee * magic * magic;\r\n    const sqrtMagic = Math.sqrt(magic);\r\n    dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);\r\n    dLng = (dLng * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);\r\n    const mgLat = lat + dLat;\r\n    const mgLng = lng + dLng;\r\n    const newCoord = {\r\n        lng: mgLng,\r\n        lat: mgLat\r\n    };\r\n    return newCoord;\r\n}\r\n\r\nfunction transformLat (x: number, y: number) {\r\n    let ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));\r\n    ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;\r\n    ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;\r\n    ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;\r\n    return ret;\r\n}\r\n\r\nfunction transformLng (x: number, y: number) {\r\n    let ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));\r\n    ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;\r\n    ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;\r\n    ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;\r\n    return 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