GPS 经纬度转换为 经过旋转后的平面坐标

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/**
 * 地图工具
 
 * @author dxm
 
 */ 
public class MapUtil { 
   
    // 参考点 
    private double[] d34 = null
    private double[] d33 = null
    private double[] gs34 = null
    private double[] gs33 = null
   
    // 参考点位置 
    private double x34, y34; 
   
    // 计算参数 
    private double a, b, c, bl; 
   
    /**
     * 构造器
     
     * @param ds34 参考点经纬度
     * @param ds33 参考点经纬度
     * @param length 两个参考点在本坐标系长度
     */ 
    public MapUtil(String[] ds34, String[] ds33, double x34, double y34, double length) { 
   
        this.x34 = x34; 
        this.y34 = y34; 
   
        d34 = convertGPS(ds34[0], ds34[1]); 
        d33 = convertGPS(ds33[0], ds33[1]); 
        gs34 = BLToGauss(d34[0], d34[1]); 
        gs33 = BLToGauss(d33[0], d33[1]); 
   
        // 点33到点34的高斯横向距离 
        a = gs34[0] - gs33[0]; 
   
        // 点33到点34的高斯纵向距离 
        b = gs34[1] - gs33[1]; 
   
        // 点33到点34的高斯直线距离 
        c = Math.sqrt(a * a + b * b); 
   
        // 高斯距离与本坐标系的比例 
        bl = length / c; 
    
   
    /**
     * 根据经纬度算XY
     
     * @param lng
     * @param lat
     * @return
     */ 
    public int[] getXY(double lng, double lat) { 
   
        // 与参考点比较经度计算坐标 
        if (lng > d34[0]) { 
            return getXY1(lng, lat); 
        } else
            return getXY2(lng, lat); 
        
    
   
    /**
     * 已有定点为基准算XY坐标
     */ 
    private int[] getXY1(double lng, double lat) { 
   
        // 将经纬度转换为高斯投影坐标 
        double[] gs = BLToGauss(lng, lat); 
   
        // 与点34的横向高斯距离 
        double d = Math.abs(gs[0] - gs34[0]); 
   
        double e = d * c / b; 
   
        double f = a * e / c; 
   
        // 与点34的纵向高斯距离 
        double gf = Math.abs(gs[1] - gs34[1]); 
   
        double g = gf - f; 
   
        double h = a * g / c; 
   
        double i = b * g / c; 
   
        double x = x34 - i * bl; 
        double y = y34 + (h + e) * bl; 
        return new int[] { (int) Math.rint(x), (int) Math.rint(y) }; 
    
   
    /**
     * 已有定点为基准算XY坐标
     */ 
    private int[] getXY2(double lng, double lat) { 
   
        // 将经纬度转换为高斯投影坐标 
        double[] gs = BLToGauss(lng, lat); 
   
        // 与点34的横向高斯距离 
        double d = Math.abs(gs[0] - gs34[0]); 
   
        double e = d * c / a; 
   
        double f = e * b / c; 
   
        // 与点34的纵向高斯距离 
        double gf = Math.abs(gs[1] - gs34[1]); 
   
        double g = gf - f; 
   
        double h = a * g / c; 
   
        double i = b * g / c; 
   
        double x = x34 - (e + i) * bl; 
        double y = y34 + h * bl; 
        return new int[] { (int) Math.rint(x), (int) Math.rint(y) }; 
    
   
    /**
     * 经纬度度分秒转带小数点的度
     
     * @param jw
     * @return
     */ 
    private double[] convertGPS(String lng, String lat) { 
   
        lng = lng.replaceAll("N", ""); 
        lng = lng.replaceAll("S", ""); 
        lng = lng.replaceAll("E", ""); 
        lng = lng.replaceAll("W", ""); 
   
        lat = lat.replaceAll("N", ""); 
        lat = lat.replaceAll("S", ""); 
        lat = lat.replaceAll("E", ""); 
        lat = lat.replaceAll("W", ""); 
   
        double lngD = 0
        String[] fs = lng.split("°"); 
        if (fs.length > 0) { 
            lngD = Double.parseDouble(fs[0]); 
        
   
        fs = fs[1].split("′"); 
        if (fs.length > 0) { 
            double fen = Double.parseDouble(fs[0]); 
            fen = fen / 60
            lngD += fen; 
        
   
        fs = fs[1].split("″"); 
        if (fs.length > 0) { 
            double mi = Double.parseDouble(fs[0]); 
            mi = mi / (60 * 60); 
            lngD += mi; 
        
   
        double latD = 0
        fs = lat.split("°"); 
        if (fs.length > 0) { 
            latD = Double.parseDouble(fs[0]); 
        
   
        fs = fs[1].split("′"); 
        if (fs.length > 0) { 
            double fen = Double.parseDouble(fs[0]); 
            fen = fen / 60
            latD += fen; 
        
   
        fs = fs[1].split("″"); 
        if (fs.length > 0) { 
            double mi = Double.parseDouble(fs[0]); 
            mi = mi / (60 * 60); 
            latD += mi; 
        
   
        return new double[] { lngD, latD }; 
    
   
    /**
     * 由高斯投影坐标反算成经纬度
     
     * @param X
     * @param Y
     * @return
     */ 
    @SuppressWarnings("unused"
    private double[] GaussToBL(double X, double Y) { 
   
        int ProjNo; 
        int ZoneWide; // //带宽 
        double[] output = new double[2]; 
        double longitude1, latitude1, longitude0, X0, Y0, xval, yval;// latitude0, 
        double e1, e2, f, a, ee, NN, T, C, M, D, R, u, fai, iPI; 
        iPI = 0.0174532925199433; // //3.1415926535898/180.0; 
        // a = 6378245.0; f = 1.0/298.3; //54年北京坐标系参数 
        a = 6378140.0
        f = 1 / 298.257; // 80年西安坐标系参数 
        ZoneWide = 6; // //6度带宽 
        ProjNo = (int) (X / 1000000L); // 查找带号 
        longitude0 = (ProjNo - 1) * ZoneWide + ZoneWide / 2
        longitude0 = longitude0 * iPI; // 中央经线 
   
        X0 = ProjNo * 1000000L + 500000L; 
        Y0 = 0
        xval = X - X0; 
        yval = Y - Y0; // 带内大地坐标 
        e2 = 2 * f - f * f; 
        e1 = (1.0 - Math.sqrt(1 - e2)) / (1.0 + Math.sqrt(1 - e2)); 
        ee = e2 / (1 - e2); 
        M = yval; 
        u = M / (a * (1 - e2 / 4 - 3 * e2 * e2 / 64 - 5 * e2 * e2 * e2 / 256)); 
        fai = u + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * Math.sin(2 * u) + (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * Math.sin(4 * u) + (151 * e1 * e1 * e1 / 96) * Math.sin(6 * u) + (1097 * e1 * e1 * e1 * e1 / 512) * Math.sin(8 * u); 
        C = ee * Math.cos(fai) * Math.cos(fai); 
        T = Math.tan(fai) * Math.tan(fai); 
        NN = a / Math.sqrt(1.0 - e2 * Math.sin(fai) * Math.sin(fai)); 
        R = a * (1 - e2) / Math.sqrt((1 - e2 * Math.sin(fai) * Math.sin(fai)) * (1 - e2 * Math.sin(fai) * Math.sin(fai)) * (1 - e2 * Math.sin(fai) * Math.sin(fai))); 
        D = xval / NN; 
        // 计算经度(Longitude) 纬度(Latitude) 
        longitude1 = longitude0 + (D - (1 + 2 * T + C) * D * D * D / 6 + (5 - 2 * C + 28 * T - 3 * C * C + 8 * ee + 24 * T * T) * D * D * D * D * D / 120) / Math.cos(fai); 
        latitude1 = fai - (NN * Math.tan(fai) / R) * (D * D / 2 - (5 + 3 * T + 10 * C - 4 * C * C - 9 * ee) * D * D * D * D / 24 + (61 + 90 * T + 298 * C + 45 * T * T - 256 * ee - 3 * C * C) * D * D * D * D * D * D / 720); 
        // 转换为度 DD 
        output[0] = longitude1 / iPI; 
        output[1] = latitude1 / iPI; 
        return output; 
    
   
    /**
     * 由经纬度反算成高斯投影坐标
     
     * @param longitude
     * @param latitude
     */ 
    private double[] BLToGauss(double longitude, double latitude) { 
   
        int ProjNo = 0
   
        // 带宽 
        int ZoneWide = 6
   
        double longitude1, latitude1, longitude0, X0, Y0, xval, yval; 
        double a, f, e2, ee, NN, T, C, A, M, iPI; 
   
        // 3.1415926535898/180.0; 
        iPI = 0.0174532925199433
   
        // 54年北京坐标系参数 
        a = 6378245.0
        f = 1.0 / 298.3
   
        // 80年西安坐标系参数 
        // a=6378140.0; 
        // f=1/298.257; 
   
        ProjNo = (int) (longitude / ZoneWide); 
        longitude0 = ProjNo * ZoneWide + ZoneWide / 2
        longitude0 = longitude0 * iPI; 
   
        // 经度转换为弧度 
        longitude1 = longitude * iPI; 
   
        // 纬度转换为弧度 
        latitude1 = latitude * iPI; 
   
        e2 = 2 * f - f * f; 
        ee = e2 * (1.0 - e2); 
        NN = a / Math.sqrt(1.0 - e2 * Math.sin(latitude1) * Math.sin(latitude1)); 
        T = Math.tan(latitude1) * Math.tan(latitude1); 
        C = ee * Math.cos(latitude1) * Math.cos(latitude1); 
        A = (longitude1 - longitude0) * Math.cos(latitude1); 
        M = a * ((1 - e2 / 4 - 3 * e2 * e2 / 64 - 5 * e2 * e2 * e2 / 256) * latitude1 - (3 * e2 / 8 + 3 * e2 * e2 / 32 + 45 * e2 * e2 * e2 / 1024) * Math.sin(2 * latitude1) + (15 * e2 * e2 / 256 + 45 * e2 * e2 * e2 / 1024) * Math.sin(4 * latitude1) - (35 * e2 * e2 * e2 / 3072) * Math.sin(6 * latitude1)); 
        xval = NN * (A + (1 - T + C) * A * A * A / 6 + (5 - 18 * T + T * T + 72 * C - 58 * ee) * A * A * A * A * A / 120); 
        yval = M + NN * Math.tan(latitude1) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24 + (61 - 58 * T + T * T + 600 * C - 330 * ee) * A * A * A * A * A * A / 720); 
        X0 = 1000000L * (ProjNo + 1) + 500000L; 
        Y0 = 0
        xval = xval + X0; 
        yval = yval + Y0; 
        return new double[] { xval, yval }; 
    
   
}