public GeoPoint(GaussCoordinate xyh, double a, double f)
{
try
{
//读取高斯平面坐标值，如果是未赋值对象则产生异常
double x = xyh.x;
double y = xyh.y;
ellipsoid = new ReferenceEllipsoid(a, f);
gaussCoord = xyh;
double B, L;
Geodetic.xy_BL(x, y, out B, out L, xyh.BeltWidth, 0, ellipsoid.a, ellipsoid.f);
geodeticCoord = new GeodeticCoordinate(B, L);
dimension = 2;
try
{
//如果存在高程异常和正常高，则按此式计算大地高
double h = xyh.h;
if (!dHlIsNull)
{
geodeticCoord.H = h + dH;
double X, Y, Z;
Geodetic.BLH_XYZ(B, L, h + dH, out X, out Y, out Z, ellipsoid.a, ellipsoid.f);
spatialCoord = new SpatialRectCoordinate(X, Y, Z);
dimension = 3;
}
}
catch { }
}
catch { }
}
public GeoPoint(SpatialRectCoordinate XYZ, double a, double f)
{
try
{
//读取空间直角坐标值，如果未赋值则产生异常
double X = XYZ.X;
double Y = XYZ.Y;
double Z = XYZ.Z;
ellipsoid = new ReferenceEllipsoid(a, f);
spatialCoord = XYZ;
double B, L, H;
Geodetic.XYZ_BLH(X, Y, Z, out B, out L, out H, ellipsoid.a, ellipsoid.f);
geodeticCoord = new GeodeticCoordinate(B, L, H);
double x, y;
Geodetic.BL_xy(geodeticCoord.B, geodeticCoord.L, out x, out y, ellipsoid.a, ellipsoid.f);
gaussCoord = new GaussCoordinate(x, y);
if (!dHlIsNull)
{
gaussCoord.h = H - dH;
}
dimension = 3;
}
catch { }
}
public GeoPoint(GeodeticCoordinate BLH, double a, double f)
{
try
{
//获取大地坐标，如果赋的值是空对象则会产生异常
double B = BLH.B;
double L = BLH.L;
geodeticCoord = BLH;
ellipsoid = new ReferenceEllipsoid(a, f);
double x, y;
Geodetic.BL_xy(B, L, out x, out y, ellipsoid.a, ellipsoid.f);
gaussCoord = new GaussCoordinate(x, y);
dimension = 2;
try
{
//获取大地高，如果没有大地高，则产生异常，只取二维坐标
double H = BLH.H;
double X, Y, Z;
Geodetic.BLH_XYZ(B, L, H, out X, out Y, out Z, ellipsoid.a, ellipsoid.f);
spatialCoord = new SpatialRectCoordinate(X, Y, Z);
dimension = 3;
}
catch { }
}
catch { }
}
/// <summary>
/// 给定参数的七参数坐标转换
/// </summary>
/// <param name="info">转换参数</param>
/// <returns>转换后的空间直角坐标</returns>
public SpatialRectCoordinate CoordinateConvert(TransformParameters p)
{
if (dimension > 2)
{
return(Geodetic.CoordinateTransform(spatialCoord, p));
}
else
{
throw new Exception("进行坐标转换需要三维坐标");
}
}
public GeoPoint(double B, double L, double H, double a, double f)
: this(B, L, a, f)
{
geodeticCoord = new GeodeticCoordinate(B, L, H);
double X, Y, Z;
Geodetic.BLH_XYZ(B, L, H, out X, out Y, out Z, ellipsoid.a, ellipsoid.f);
spatialCoord = new SpatialRectCoordinate(X, Y, Z);
dimension = 3;
}
public GeoPoint(double B, double L, double a, double f)
{
ellipsoid = new ReferenceEllipsoid(a, f);
geodeticCoord = new GeodeticCoordinate(B, L);
double x, y;
Geodetic.BL_xy(B, L, out x, out y, ellipsoid.a, ellipsoid.f);
gaussCoord = new GaussCoordinate(x, y);
dimension = 2;
}