900字范文,内容丰富有趣,生活中的好帮手!
900字范文 > JS: 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

JS: 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

时间:2019-02-21 01:05:54

相关推荐

JS: 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

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 <=> GCJ02GCJ02 <=> 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

var x_pi=3.14159265358979324 * 3000.0 / 180.0;function baiduTomars(baidu_point){var mars_point={lon:0,lat:0};var x=baidu_point.lon-0.0065;var y=baidu_point.lat-0.006;var z=Math.sqrt(x*x+y*y)- 0.00002 * Math.sin(y * x_pi);var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);mars_point.lon=z * Math.cos(theta);mars_point.lat=z * Math.sin(theta);return mars_point;}

火星坐标GCJ02转百度坐标bd09II

x_pi=3.14159265358979324 * 3000.0 / 180.0;function marsTobaidu(mars_point){var baidu_point={lon:0,lat:0};var x=mars_point.lon;var y=mars_point.lat;var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);baidu_point.lon = z * Math.cos(theta) + 0.0065;baidu_point.lat = z * Math.sin(theta) + 0.006;return baidu_point;}

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 * PIlet magic = Math.sin(radLat)magic = 1 - ee * magic * magiclet 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 / 3.0ret += (20.0 * Math.sin(y * PI) + 40.0 * Math.sin(y / 3.0 * PI)) * 2.0 / 3.0ret += (160.0 * Math.sin(y / 12.0 * PI) + 320 * Math.sin(y * PI / 30.0)) * 2.0 / 3.0return 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 / 3.0ret += (20.0 * Math.sin(x * PI) + 40.0 * Math.sin(x / 3.0 * PI)) * 2.0 / 3.0ret += (150.0 * Math.sin(x / 12.0 * PI) + 300.0 * Math.sin(x / 30.0 * PI)) * 2.0 / 3.0return ret}

2、经纬度、墨卡托转换

经纬度墨卡托

function lonlatTomercator(lonlat) {var mercator={x:0,y:0};var x = lonlat.x *7508.34/180;var y = Math.log(Math.tan((90+lonlat.y)*Math.PI/360))/(Math.PI/180);y = y *7508.34/180;mercator.x = x;mercator.y = y;return mercator ;}

墨卡托经纬度

function mercatorTolonlat(mercator){var lonlat={x:0,y:0};var x = mercator.x/7508.34*180;var y = mercator.y/7508.34*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bd09mcbd09II

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, -0.7862586289, 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, -408173.641316, 10774905663.51142, -15171875531.51559, 12053065338.62167, -5124939663.577472, 913311935.9512032, 67.5],[0.00337398766765, 111320.702162, 4481351.045890365, -23393751.19931662, 79682215.47186455, -115964993.2797253, 97236711.15602145, -43661946.33752821, 8477230.501135234, 52.5],[0.00220636496208, 111320.709128, 51751.86112841131, 3796837.749470245, 99.7397791013, -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 <= -LLBAND[cC]) {cD = LL2MC[cC];break;}}}const cE = convertor(T, cD);return cE;}

本内容不代表本网观点和政治立场,如有侵犯你的权益请联系我们处理。
网友评论
网友评论仅供其表达个人看法,并不表明网站立场。