关于经纬度坐标与utm坐标之间的相互转换api
/* * Author: Sami Salkosuo, [email protected] * * (c) Copyright IBM Corp. 2007 */ package com.baidu.traffic.sc.common.util; // add by liushouyun 20190515 for convert UTM & lat/lon // IBM https://www.ibm.com/developerworks/cn/java/j-coordconvert/index.html#artdownload import java.util.Hashtable; import java.util.Map; public class CoordinateConversion { public CoordinateConversion() { } public double[] utm2LatLon(String UTM) { UTM2LatLon c = new UTM2LatLon(); return c.convertUTMToLatLong(UTM); } public String latLon2UTM(double latitude, double longitude) { LatLon2UTM c = new LatLon2UTM(); return c.convertLatLonToUTM(latitude, longitude); } private void validate(double latitude, double longitude) { if (latitude < -90.0 || latitude > 90.0 || longitude < -180.0 || longitude >= 180.0) { throw new IllegalArgumentException( "Legal ranges: latitude [-90,90], longitude [-180,180)."); } } public String latLon2MGRUTM(double latitude, double longitude) { LatLon2MGRUTM c = new LatLon2MGRUTM(); return c.convertLatLonToMGRUTM(latitude, longitude); } public double[] mgrutm2LatLon(String MGRUTM) { MGRUTM2LatLon c = new MGRUTM2LatLon(); return c.convertMGRUTMToLatLong(MGRUTM); } public double degreeToRadian(double degree) { return degree * Math.PI / 180; } public double radianToDegree(double radian) { return radian * 180 / Math.PI; } private double POW(double a, double b) { return Math.pow(a, b); } private double SIN(double value) { return Math.sin(value); } private double COS(double value) { return Math.cos(value); } private double TAN(double value) { return Math.tan(value); } private class LatLon2UTM { public String convertLatLonToUTM(double latitude, double longitude) { validate(latitude, longitude); String UTM = ""; setVariables(latitude, longitude); String longZone = getLongZone(longitude); LatZones latZones = new LatZones(); String latZone = latZones.getLatZone(latitude); double _easting = getEasting(); double _northing = getNorthing(latitude); UTM = longZone + " " + latZone + " " + ((int) _easting) + " " + ((int) _northing); // UTM = longZone + " " + latZone + " " + decimalFormat.format(_easting) + // " "+ decimalFormat.format(_northing); return UTM; } protected void setVariables(double latitude, double longitude) { latitude = degreeToRadian(latitude); rho = equatorialRadius * (1 - e * e) / POW(1 - POW(e * SIN(latitude), 2), 3 / 2.0); nu = equatorialRadius / POW(1 - POW(e * SIN(latitude), 2), (1 / 2.0)); double var1; if (longitude < 0.0) { var1 = ((int) ((180 + longitude) / 6.0)) + 1; } else { var1 = ((int) (longitude / 6)) + 31; } double var2 = (6 * var1) - 183; double var3 = longitude - var2; p = var3 * 3600 / 10000; S = A0 * latitude - B0 * SIN(2 * latitude) + C0 * SIN(4 * latitude) - D0 * SIN(6 * latitude) + E0 * SIN(8 * latitude); K1 = S * k0; K2 = nu * SIN(latitude) * COS(latitude) * POW(sin1, 2) * k0 * (100000000) / 2; K3 = ((POW(sin1, 4) * nu * SIN(latitude) * Math.pow(COS(latitude), 3)) / 24) * (5 - POW(TAN(latitude), 2) + 9 * e1sq * POW(COS(latitude), 2) + 4 * POW(e1sq, 2) * POW(COS(latitude), 4)) * k0 * (10000000000000000L); K4 = nu * COS(latitude) * sin1 * k0 * 10000; K5 = POW(sin1 * COS(latitude), 3) * (nu / 6) * (1 - POW(TAN(latitude), 2) + e1sq * POW(COS(latitude), 2)) * k0 * 1000000000000L; A6 = (POW(p * sin1, 6) * nu * SIN(latitude) * POW(COS(latitude), 5) / 720) * (61 - 58 * POW(TAN(latitude), 2) + POW(TAN(latitude), 4) + 270 * e1sq * POW(COS(latitude), 2) - 330 * e1sq * POW(SIN(latitude), 2)) * k0 * (1E+24); } protected String getLongZone(double longitude) { double longZone = 0; if (longitude < 0.0) { longZone = ((180.0 + longitude) / 6) + 1; } else { longZone = (longitude / 6) + 31; } String val = String.valueOf((int) longZone); if (val.length() == 1) { val = "0" + val; } return val; } protected double getNorthing(double latitude) { double northing = K1 + K2 * p * p + K3 * POW(p, 4); if (latitude < 0.0) { northing = 10000000 + northing; } return northing; } protected double getEasting() { return 500000 + (K4 * p + K5 * POW(p, 3)); } // Lat Lon to UTM variables // equatorial radius double equatorialRadius = 6378137; // polar radius double polarRadius = 6356752.314; // flattening double flattening = 0.00335281066474748; // (equatorialRadius-polarRadius)/equatorialRadius; // inverse flattening 1/flattening double inverseFlattening = 298.257223563; // 1/flattening; // Mean radius double rm = POW(equatorialRadius * polarRadius, 1 / 2.0); // scale factor double k0 = 0.9996; // eccentricity double e = Math.sqrt(1 - POW(polarRadius / equatorialRadius, 2)); double e1sq = e * e / (1 - e * e); double n = (equatorialRadius - polarRadius) / (equatorialRadius + polarRadius); // r curv 1 double rho = 6368573.744; // r curv 2 double nu = 6389236.914; // Calculate Meridional Arc Length // Meridional Arc double S = 5103266.421; double A0 = 6367449.146; double B0 = 16038.42955; double C0 = 16.83261333; double D0 = 0.021984404; double E0 = 0.000312705; // Calculation Constants // Delta Long double p = -0.483084; double sin1 = 4.84814E-06; // Coefficients for UTM Coordinates double K1 = 5101225.115; double K2 = 3750.291596; double K3 = 1.397608151; double K4 = 214839.3105; double K5 = -2.995382942; double A6 = -1.00541E-07; } private class LatLon2MGRUTM extends LatLon2UTM { public String convertLatLonToMGRUTM(double latitude, double longitude) { validate(latitude, longitude); String mgrUTM = ""; setVariables(latitude, longitude); String longZone = getLongZone(longitude); LatZones latZones = new LatZones(); String latZone = latZones.getLatZone(latitude); double _easting = getEasting(); double _northing = getNorthing(latitude); Digraphs digraphs = new Digraphs(); String digraph1 = digraphs.getDigraph1(Integer.parseInt(longZone), _easting); String digraph2 = digraphs.getDigraph2(Integer.parseInt(longZone), _northing); String easting = String.valueOf((int) _easting); if (easting.length() < 5) { easting = "00000" + easting; } easting = easting.substring(easting.length() - 5); String northing; northing = String.valueOf((int) _northing); if (northing.length() < 5) { northing = "0000" + northing; } northing = northing.substring(northing.length() - 5); mgrUTM = longZone + latZone + digraph1 + digraph2 + easting + northing; return mgrUTM; } } private class MGRUTM2LatLon extends UTM2LatLon { public double[] convertMGRUTMToLatLong(String mgrutm) { double[] latlon = {0.0, 0.0}; // 02CNR0634657742 int zone = Integer.parseInt(mgrutm.substring(0, 2)); String latZone = mgrutm.substring(2, 3); String digraph1 = mgrutm.substring(3, 4); String digraph2 = mgrutm.substring(4, 5); easting = Double.parseDouble(mgrutm.substring(5, 10)); northing = Double.parseDouble(mgrutm.substring(10, 15)); LatZones lz = new LatZones(); double latZoneDegree = lz.getLatZoneDegree(latZone); double a1 = latZoneDegree * 40000000 / 360.0; double a2 = 2000000 * Math.floor(a1 / 2000000.0); Digraphs digraphs = new Digraphs(); double digraph2Index = digraphs.getDigraph2Index(digraph2); double startindexEquator = 1; if ((1 + zone % 2) == 1) { startindexEquator = 6; } double a3 = a2 + (digraph2Index - startindexEquator) * 100000; if (a3 <= 0) { a3 = 10000000 + a3; } northing = a3 + northing; zoneCM = -183 + 6 * zone; double digraph1Index = digraphs.getDigraph1Index(digraph1); int a5 = 1 + zone % 3; double[] a6 = {16, 0, 8}; double a7 = 100000 * (digraph1Index - a6[a5 - 1]); easting = easting + a7; setVariables(); double latitude = 0; latitude = 180 * (phi1 - fact1 * (fact2 + fact3 + fact4)) / Math.PI; if (latZoneDegree < 0) { latitude = 90 - latitude; } double d = _a2 * 180 / Math.PI; double longitude = zoneCM - d; if (getHemisphere(latZone).equals("S")) { latitude = -latitude; } latlon[0] = latitude; latlon[1] = longitude; return latlon; } } private class UTM2LatLon { double easting; double northing; int zone; String southernHemisphere = "ACDEFGHJKLM"; protected String getHemisphere(String latZone) { String hemisphere = "N"; if (southernHemisphere.indexOf(latZone) > -1) { hemisphere = "S"; } return hemisphere; } public double[] convertUTMToLatLong(String UTM) { double[] latlon = {0.0, 0.0}; String[] utm = UTM.split(" "); zone = Integer.parseInt(utm[0]); String latZone = utm[1]; easting = Double.parseDouble(utm[2]); northing = Double.parseDouble(utm[3]); String hemisphere = getHemisphere(latZone); double latitude = 0.0; double longitude = 0.0; if (hemisphere.equals("S")) { northing = 10000000 - northing; } setVariables(); latitude = 180 * (phi1 - fact1 * (fact2 + fact3 + fact4)) / Math.PI; if (zone > 0) { zoneCM = 6 * zone - 183.0; } else { zoneCM = 3.0; } longitude = zoneCM - _a3; if (hemisphere.equals("S")) { latitude = -latitude; } latlon[0] = latitude; latlon[1] = longitude; return latlon; } protected void setVariables() { arc = northing / k0; mu = arc / (a * (1 - POW(e, 2) / 4.0 - 3 * POW(e, 4) / 64.0 - 5 * POW(e, 6) / 256.0)); ei = (1 - POW((1 - e * e), (1 / 2.0))) / (1 + POW((1 - e * e), (1 / 2.0))); ca = 3 * ei / 2 - 27 * POW(ei, 3) / 32.0; cb = 21 * POW(ei, 2) / 16 - 55 * POW(ei, 4) / 32; cc = 151 * POW(ei, 3) / 96; cd = 1097 * POW(ei, 4) / 512; phi1 = mu + ca * SIN(2 * mu) + cb * SIN(4 * mu) + cc * SIN(6 * mu) + cd * SIN(8 * mu); n0 = a / POW((1 - POW((e * SIN(phi1)), 2)), (1 / 2.0)); r0 = a * (1 - e * e) / POW((1 - POW((e * SIN(phi1)), 2)), (3 / 2.0)); fact1 = n0 * TAN(phi1) / r0; _a1 = 500000 - easting; dd0 = _a1 / (n0 * k0); fact2 = dd0 * dd0 / 2; t0 = POW(TAN(phi1), 2); Q0 = e1sq * POW(COS(phi1), 2); fact3 = (5 + 3 * t0 + 10 * Q0 - 4 * Q0 * Q0 - 9 * e1sq) * POW(dd0, 4) / 24; fact4 = (61 + 90 * t0 + 298 * Q0 + 45 * t0 * t0 - 252 * e1sq - 3 * Q0 * Q0) * POW(dd0, 6) / 720; // lof1 = _a1 / (n0 * k0); lof2 = (1 + 2 * t0 + Q0) * POW(dd0, 3) / 6.0; lof3 = (5 - 2 * Q0 + 28 * t0 - 3 * POW(Q0, 2) + 8 * e1sq + 24 * POW(t0, 2)) * POW(dd0, 5) / 120; _a2 = (lof1 - lof2 + lof3) / COS(phi1); _a3 = _a2 * 180 / Math.PI; } double arc; double mu; double ei; double ca; double cb; double cc; double cd; double n0; double r0; double _a1; double dd0; double t0; double Q0; double lof1; double lof2; double lof3; double _a2; double phi1; double fact1; double fact2; double fact3; double fact4; double zoneCM; double _a3; double b = 6356752.314; double a = 6378137; double e = 0.081819191; double e1sq = 0.006739497; double k0 = 0.9996; } private class Digraphs { private Map digraph1 = new Hashtable(); private Map digraph2 = new Hashtable(); private String[] digraph1Array = {"A", "B", "C", "D", "E", "F", "G", "H", "J", "K", "L", "M", "N", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}; private String[] digraph2Array = {"V", "A", "B", "C", "D", "E", "F", "G", "H", "J", "K", "L", "M", "N", "P", "Q", "R", "S", "T", "U", "V"}; public Digraphs() { } { digraph1.put(new Integer(1), "A"); digraph1.put(new Integer(2), "B"); digraph1.put(new Integer(3), "C"); digraph1.put(new Integer(4), "D"); digraph1.put(new Integer(5), "E"); digraph1.put(new Integer(6), "F"); digraph1.put(new Integer(7), "G"); digraph1.put(new Integer(8), "H"); digraph1.put(new Integer(9), "J"); digraph1.put(new Integer(10), "K"); digraph1.put(new Integer(11), "L"); digraph1.put(new Integer(12), "M"); digraph1.put(new Integer(13), "N"); digraph1.put(new Integer(14), "P"); digraph1.put(new Integer(15), "Q"); digraph1.put(new Integer(16), "R"); digraph1.put(new Integer(17), "S"); digraph1.put(new Integer(18), "T"); digraph1.put(new Integer(19), "U"); digraph1.put(new Integer(20), "V"); digraph1.put(new Integer(21), "W"); digraph1.put(new Integer(22), "X"); digraph1.put(new Integer(23), "Y"); digraph1.put(new Integer(24), "Z"); digraph2.put(new Integer(0), "V"); digraph2.put(new Integer(1), "A"); digraph2.put(new Integer(2), "B"); digraph2.put(new Integer(3), "C"); digraph2.put(new Integer(4), "D"); digraph2.put(new Integer(5), "E"); digraph2.put(new Integer(6), "F"); digraph2.put(new Integer(7), "G"); digraph2.put(new Integer(8), "H"); digraph2.put(new Integer(9), "J"); digraph2.put(new Integer(10), "K"); digraph2.put(new Integer(11), "L"); digraph2.put(new Integer(12), "M"); digraph2.put(new Integer(13), "N"); digraph2.put(new Integer(14), "P"); digraph2.put(new Integer(15), "Q"); digraph2.put(new Integer(16), "R"); digraph2.put(new Integer(17), "S"); digraph2.put(new Integer(18), "T"); digraph2.put(new Integer(19), "U"); digraph2.put(new Integer(20), "V"); } public int getDigraph1Index(String letter) { for (int i = 0; i < digraph1Array.length; i++) { if (digraph1Array[i].equals(letter)) { return i + 1; } } return -1; } public int getDigraph2Index(String letter) { for (int i = 0; i < digraph2Array.length; i++) { if (digraph2Array[i].equals(letter)) { return i; } } return -1; } public String getDigraph1(int longZone, double easting) { int a1 = longZone; double a2 = 8 * ((a1 - 1) % 3) + 1; double a3 = easting; double a4 = a2 + ((int) (a3 / 100000)) - 1; return (String) digraph1.get(new Integer((int) Math.floor(a4))); } public String getDigraph2(int longZone, double northing) { int a1 = longZone; double a2 = 1 + 5 * ((a1 - 1) % 2); double a3 = northing; double a4 = (a2 + ((int) (a3 / 100000))); a4 = (a2 + ((int) (a3 / 100000.0))) % 20; a4 = Math.floor(a4); if (a4 < 0) { a4 = a4 + 19; } return (String) digraph2.get(new Integer((int) Math.floor(a4))); } } private class LatZones { private char[] letters = {'A', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Z'}; private int[] degrees = {-90, -84, -72, -64, -56, -48, -40, -32, -24, -16, -8, 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 84}; private char[] negLetters = {'A', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M'}; private int[] negDegrees = {-90, -84, -72, -64, -56, -48, -40, -32, -24, -16, -8}; private char[] posLetters = {'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Z'}; private int[] posDegrees = {0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 84}; private int arrayLength = 22; public LatZones() { } public int getLatZoneDegree(String letter) { char ltr = letter.charAt(0); for (int i = 0; i < arrayLength; i++) { if (letters[i] == ltr) { return degrees[i]; } } return -100; } public String getLatZone(double latitude) { int latIndex = -2; int lat = (int) latitude; if (lat >= 0) { int len = posLetters.length; for (int i = 0; i < len; i++) { if (lat == posDegrees[i]) { latIndex = i; break; } if (lat > posDegrees[i]) { continue; } else { latIndex = i - 1; break; } } } else { int len = negLetters.length; for (int i = 0; i < len; i++) { if (lat == negDegrees[i]) { latIndex = i; break; } if (lat < negDegrees[i]) { latIndex = i - 1; break; } else { continue; } } } if (latIndex == -1) { latIndex = 0; } if (lat >= 0) { if (latIndex == -2) { latIndex = posLetters.length - 1; } return String.valueOf(posLetters[latIndex]); } else { if (latIndex == -2) { latIndex = negLetters.length - 1; } return String.valueOf(negLetters[latIndex]); } } } }
