经纬度和高斯坐标转换,高德经纬度转换为XY坐标

// 高德转百度（火星坐标gcj02ll–>百度坐标bd09ll）gaoDeToBaidu = (gd_lon,gd_lat) => { var PI = 3.14159265358979324 * 3000.0 / 180.0; var x = gd_lon, y = gd_lat; var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * PI); var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * PI); var bd_lng = z * Math.cos(theta) + 0.0065; var bd_lat = z * Math.sin(theta) + 0.006; return { bd_lng: bd_lng, bd_lat: bd_lat };}// 百度转高德（百度坐标bd09ll–>火星坐标gcj02ll）bd_encrypt = (lng, lat) => { var X_PI = Math.PI * 3000.0 / 180.0; var x = lng- 0.0065, y = 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); var bd_lng = z * Math.cos(theta); var bd_lat = z * Math.sin(theta); return { bd_lng: bd_lng, bd_lat: bd_lat }; } console.log(bd_encrypt(113.401879,23.130747));