火星坐标gcj02、百度坐标bd09II、WGS84坐标相互转换及墨卡托转经纬度百度墨卡托bd09mc

2024-07-16 07:59| 来源: 网络整理| 查看: 265

写在前面 bd09II：百度地图 gcj02：高德地图、腾讯地图 cgcs200：天地图 wgs84： osm、谷歌、arcgisonline。。。。 1、经纬度转换 BD09 GCJ02 WGS84(CGCS200) BD09 GCJ02 GCJ02 WGS84(CGCS200) 2、经纬度与墨卡托墨卡托经纬度 BD09mc BD09 JavaScript版本的。

1、经纬度转换

百度坐标bd09II转火星坐标GCJ02

地球坐标系WGS84转火星坐标系GCJ02 var pi = 3.14159265358979324; var a = 6378245.0; var ee = 0.00669342162296594323; /*判断是否在国内，不在国内则不做偏移*/ function outOfChina(lon, lat) { if ((lon < 72.004 || lon > 137.8347)&&(lat < 0.8293 || lat > 55.8271)){ return true; }else { return false; } } function transformLat(x,y) { var ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x)); ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0; ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0; ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0; return ret; } function transformLon(x,y) { var ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x)); ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0; ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0; ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0; return ret; } function transform(wgLat,wgLon) { var mars_point={lon:0,lat:0}; if (outOfChina(wgLat, wgLon)) { mars_point.lat = wgLat; mars_point.lon = wgLon; return; } var dLat = transformLat(wgLon - 105.0, wgLat - 35.0); var dLon = transformLon(wgLon - 105.0, wgLat - 35.0); var radLat = wgLat / 180.0 * pi; var magic = Math.sin(radLat); magic = 1 - ee * magic * magic; var sqrtMagic = Math.sqrt(magic); dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi); dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi); mars_point.lat = wgLat + dLat; mars_point.lon = wgLon + dLon; return mars_point } 火星坐标系GCJ02转地球坐标系WGS84 var PI = 3.14159265358979324; function transformGCJ2WGS(gcjLat, gcjLon) { let d = delta(gcjLat, gcjLon) return { 'lat': gcjLat - d.lat, 'lon': gcjLon - d.lon } } function delta(lat, lon) { let a = 6378245.0 // a: 卫星椭球坐标投影到平面地图坐标系的投影因子。 let ee = 0.00669342162296594323 // ee: 椭球的偏心率。 let dLat = transformLat(lon - 105.0, lat - 35.0) let dLon = transformLon(lon - 105.0, lat - 35.0) let radLat = lat / 180.0 * PI let magic = Math.sin(radLat) magic = 1 - ee * magic * magic let sqrtMagic = Math.sqrt(magic) dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * PI) dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * PI) return { 'lat': dLat, 'lon': dLon } } function transformLat(x, y) { 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)) ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0 ret += (20.0 * Math.sin(y * PI) + 40.0 * Math.sin(y / 3.0 * PI)) * 2.0 / 3.0 ret += (160.0 * Math.sin(y / 12.0 * PI) + 320 * Math.sin(y * PI / 30.0)) * 2.0 / 3.0 return ret } function transformLon(x, y) { let ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x)) ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0 ret += (20.0 * Math.sin(x * PI) + 40.0 * Math.sin(x / 3.0 * PI)) * 2.0 / 3.0 ret += (150.0 * Math.sin(x / 12.0 * PI) + 300.0 * Math.sin(x / 30.0 * PI)) * 2.0 / 3.0 return ret } 2、经纬度、墨卡托转换经纬度转墨卡托 function lonlatTomercator(lonlat) { var mercator={x:0,y:0}; var x = lonlat.x *20037508.34/180; var y = Math.log(Math.tan((90+lonlat.y)*Math.PI/360))/(Math.PI/180); y = y *20037508.34/180; mercator.x = x; mercator.y = y; return mercator ; } 墨卡托转经纬度 function mercatorTolonlat(mercator){ var lonlat={x:0,y:0}; var x = mercator.x/20037508.34*180; var y = mercator.y/20037508.34*180; y= 180/Math.PI*(2*Math.atan(Math.exp(y*Math.PI/180))-Math.PI/2); lonlat.x = x; lonlat.y = y; return lonlat; } 百度墨卡托bd09mc转bd09II var MCBAND = [12890594.86, 8362377.87, 5591021, 3481989.83, 1678043.12, 0] var MC2LL = [ [1.410526172116255e-8, 0.00000898305509648872, -1.9939833816331, 200.9824383106796, -187.2403703815547, 91.6087516669843, -23.38765649603339, 2.57121317296198, -0.03801003308653, 17337981.2], [-7.435856389565537e-9, 0.000008983055097726239, -0.78625201886289, 96.32687599759846, -1.85204757529826, -59.36935905485877, 47.40033549296737, -16.50741931063887, 2.28786674699375, 10260144.86], [-3.030883460898826e-8, 0.00000898305509983578, 0.30071316287616, 59.74293618442277, 7.357984074871, -25.38371002664745, 13.45380521110908, -3.29883767235584, 0.32710905363475, 6856817.37], [-1.981981304930552e-8, 0.000008983055099779535, 0.03278182852591, 40.31678527705744, 0.65659298677277, -4.44255534477492, 0.85341911805263, 0.12923347998204, -0.04625736007561, 4482777.06], [3.09191371068437e-9, 0.000008983055096812155, 0.00006995724062, 23.10934304144901, -0.00023663490511, -0.6321817810242, -0.00663494467273, 0.03430082397953, -0.00466043876332, 2555164.4], [2.890871144776878e-9, 0.000008983055095805407, -3.068298e-8, 7.47137025468032, -0.00000353937994, -0.02145144861037, -0.00001234426596, 0.00010322952773, -0.00000323890364, 826088.5] ] function convertor(cC, cD) { if (!cC || !cD) { return null; } let T = cD[0] + cD[1] * Math.abs(cC.x); const cB = Math.abs(cC.y) / cD[9]; let cE = cD[2] + cD[3] * cB + cD[4] * cB * cB + cD[5] * cB * cB * cB + cD[6] * cB * cB * cB * cB + cD[7] * cB * cB * cB * cB * cB + cD[8] * cB * cB * cB * cB * cB * cB; T *= (cC.x < 0 ? -1 : 1); cE *= (cC.y < 0 ? -1 : 1); return [T, cE]; } function convertMC2LL(cB) { const cC = { x: Math.abs(cB.x), y: Math.abs(cB.y) }; let cE; for (let cD = 0, len = MCBAND.length; cD < len; cD++) { if (cC.y >= MCBAND[cD]) { cE = MC2LL[cD]; break; } } const T = convertor(cB, cE); return T; } 百度经纬度bd09II转百度墨卡托bd09mc var LLBAND =[75, 60, 45, 30, 15, 0] var LL2MC = [ [-0.0015702102444, 111320.7020616939, 1704480524535203, -10338987376042340, 26112667856603880, -35149669176653700, 26595700718403920, -10725012454188240, 1800819912950474, 82.5], [0.0008277824516172526, 111320.7020463578, 647795574.6671607, -4082003173.641316, 10774905663.51142, -15171875531.51559, 12053065338.62167, -5124939663.577472, 913311935.9512032, 67.5], [0.00337398766765, 111320.7020202162, 4481351.045890365, -23393751.19931662, 79682215.47186455, -115964993.2797253, 97236711.15602145, -43661946.33752821, 8477230.501135234, 52.5], [0.00220636496208, 111320.7020209128, 51751.86112841131, 3796837.749470245, 992013.7397791013, -1221952.21711287, 1340652.697009075, -620943.6990984312, 144416.9293806241, 37.5], [-0.0003441963504368392, 111320.7020576856, 278.2353980772752, 2485758.690035394, 6070.750963243378, 54821.18345352118, 9540.606633304236, -2710.55326746645, 1405.483844121726, 22.5], [-0.0003218135878613132, 111320.7020701615, 0.00369383431289, 823725.6402795718, 0.46104986909093, 2351.343141331292, 1.58060784298199, 8.77738589078284, 0.37238884252424, 7.45] ] function getRange(cC, cB, T) { if (cB != null) { cC = Math.max(cC, cB); } if (T != null) { cC = Math.min(cC, T); } return cC; } function getLoop(cC, cB, T) { while (cC > T) { cC -= T - cB; } while (cC < cB) { cC += T - cB; } return cC; } function convertor(cC, cD) { if (!cC || !cD) { return null; } let T = cD[0] + cD[1] * Math.abs(cC.x); const cB = Math.abs(cC.y) / cD[9]; let cE = cD[2] + cD[3] * cB + cD[4] * cB * cB + cD[5] * cB * cB * cB + cD[6] * cB * cB * cB * cB + cD[7] * cB * cB * cB * cB * cB + cD[8] * cB * cB * cB * cB * cB * cB; T *= (cC.x < 0 ? -1 : 1); cE *= (cC.y < 0 ? -1 : 1); return [T, cE]; } function convertLL2MC(T) { let cD, cC, len; T.x = getLoop(T.x, -180, 180); T.y = getRange(T.y, -74, 74); const cB = T; for (cC = 0, len = LLBAND.length; cC < len; cC++) { if (cB.y >= LLBAND[cC]) { cD = LL2MC[cC]; break; } } if (!cD) { for (cC = LLBAND.length - 1; cC >= 0; cC--) { if (cB.y

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