关于经纬度坐标与utm坐标之间的相互转换api

2020-03-03 16:04:49来源:博客园 阅读 ()

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关于经纬度坐标与utm坐标之间的相互转换api

/*
 * Author: Sami Salkosuo, sami.salkosuo@fi.ibm.com
 *
 * (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]);

            }
        }

    }

}

 


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