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#pragma once
/**
* \file NETGeographicLib/LocalCartesian.h
* \brief Header for NETGeographicLib::LocalCartesian class
*
* NETGeographicLib is copyright (c) Scott Heiman (2013)
* GeographicLib is Copyright (c) Charles Karney (2010-2012)
* <charles@karney.com> and licensed under the MIT/X11 License.
* For more information, see
* http://geographiclib.sourceforge.net/
**********************************************************************/
namespace NETGeographicLib
{
ref class Geocentric;
/**
* \brief .NET wrapper for GeographicLib::LocalCartesian.
*
* This class allows .NET applications to access GeographicLib::LocalCartesian.
*
* Convert between geodetic coordinates latitude = \e lat, longitude = \e
* lon, height = \e h (measured vertically from the surface of the ellipsoid)
* to local cartesian coordinates (\e x, \e y, \e z). The origin of local
* cartesian coordinate system is at \e lat = \e lat0, \e lon = \e lon0, \e h
* = \e h0. The \e z axis is normal to the ellipsoid; the \e y axis points
* due north. The plane \e z = - \e h0 is tangent to the ellipsoid.
*
* The conversions all take place via geocentric coordinates using a
* Geocentric object.
*
* C# Example:
* \include example-LocalCartesian.cs
* Managed C++ Example:
* \include example-LocalCartesian.cpp
* Visual Basic Example:
* \include example-LocalCartesian.vb
*
* <B>INTERFACE DIFFERENCES:</B><BR>
* Constructors have been provided that assume WGS84 parameters.
*
* The following functions are implemented as properties:
* LatitudeOrigin, LongitudeOrigin, HeightOrigin, MajorRadius,
* and Flattening.
*
* The rotation matrices returned by the Forward and Reverse functions
* are 2D, 3 × 3 arrays rather than vectors.
**********************************************************************/
public ref class LocalCartesian
{
private:
// the pointer to the GeographicLib::LocalCartesian.
GeographicLib::LocalCartesian* m_pLocalCartesian;
// the finalizer frees the unmanaged memory when the object is destroyed.
!LocalCartesian(void);
public:
/**
* Constructor setting the origin.
*
* @param[in] lat0 latitude at origin (degrees).
* @param[in] lon0 longitude at origin (degrees).
* @param[in] h0 height above ellipsoid at origin (meters); default 0.
* @param[in] earth Geocentric object for the transformation; default
* Geocentric::WGS84.
*
* \e lat0 should be in the range [−90°, 90°]; \e
* lon0 should be in the range [−540°, 540°).
**********************************************************************/
LocalCartesian(double lat0, double lon0, double h0,
Geocentric^ earth );
/**
* Constructor setting the origin and assuming a WGS84 ellipsoid.
*
* @param[in] lat0 latitude at origin (degrees).
* @param[in] lon0 longitude at origin (degrees).
* @param[in] h0 height above ellipsoid at origin (meters); default 0.
*
* \e lat0 should be in the range [−90°, 90°]; \e
* lon0 should be in the range [−540°, 540°).
**********************************************************************/
LocalCartesian(double lat0, double lon0, double h0 );
/**
* Constructor that uses the provided ellipsoid.
*
* @param[in] earth Geocentric object for the transformation; default
* Geocentric::WGS84.
*
* Sets \e lat0 = 0, \e lon0 = 0, \e h0 = 0.
**********************************************************************/
LocalCartesian(Geocentric^ earth);
/**
* The default constructor assumes the WGS84 ellipsoid.
*
* Sets \e lat0 = 0, \e lon0 = 0, \e h0 = 0.
**********************************************************************/
LocalCartesian();
/**
* The destructor calls the finalizer.
**********************************************************************/
~LocalCartesian()
{ this->!LocalCartesian(); }
/**
* Reset the origin.
*
* @param[in] lat0 latitude at origin (degrees).
* @param[in] lon0 longitude at origin (degrees).
* @param[in] h0 height above ellipsoid at origin (meters); default 0.
*
* \e lat0 should be in the range [−90°, 90°]; \e
* lon0 should be in the range [−540°, 540°).
**********************************************************************/
void Reset(double lat0, double lon0, double h0 );
/**
* Convert from geodetic to local cartesian coordinates.
*
* @param[in] lat latitude of point (degrees).
* @param[in] lon longitude of point (degrees).
* @param[in] h height of point above the ellipsoid (meters).
* @param[out] x local cartesian coordinate (meters).
* @param[out] y local cartesian coordinate (meters).
* @param[out] z local cartesian coordinate (meters).
*
* \e lat should be in the range [−90°, 90°]; \e lon
* should be in the range [−540°, 540°).
**********************************************************************/
void Forward(double lat, double lon, double h,
[System::Runtime::InteropServices::Out] double% x,
[System::Runtime::InteropServices::Out] double% y,
[System::Runtime::InteropServices::Out] double% z);
/**
* Convert from geodetic to local cartesian coordinates and return rotation
* matrix.
*
* @param[in] lat latitude of point (degrees).
* @param[in] lon longitude of point (degrees).
* @param[in] h height of point above the ellipsoid (meters).
* @param[out] x local cartesian coordinate (meters).
* @param[out] y local cartesian coordinate (meters).
* @param[out] z local cartesian coordinate (meters).
* @param[out] M a 3 × 3 rotation matrix.
*
* \e lat should be in the range [−90°, 90°]; \e lon
* should be in the range [−540°, 540°).
*
* Let \e v be a unit vector located at (\e lat, \e lon, \e h). We can
* express \e v as \e column vectors in one of two ways
* - in east, north, up coordinates (where the components are relative to a
* local coordinate system at (\e lat, \e lon, \e h)); call this
* representation \e v1.
* - in \e x, \e y, \e z coordinates (where the components are relative to
* the local coordinate system at (\e lat0, \e lon0, \e h0)); call this
* representation \e v0.
* .
* Then we have \e v0 = \e M ⋅ \e v1.
**********************************************************************/
void Forward(double lat, double lon, double h,
[System::Runtime::InteropServices::Out] double% x,
[System::Runtime::InteropServices::Out] double% y,
[System::Runtime::InteropServices::Out] double% z,
[System::Runtime::InteropServices::Out] array<double,2>^% M);
/**
* Convert from local cartesian to geodetic coordinates.
*
* @param[in] x local cartesian coordinate (meters).
* @param[in] y local cartesian coordinate (meters).
* @param[in] z local cartesian coordinate (meters).
* @param[out] lat latitude of point (degrees).
* @param[out] lon longitude of point (degrees).
* @param[out] h height of point above the ellipsoid (meters).
*
* The value of \e lon returned is in the range [−180°,
* 180°).
**********************************************************************/
void Reverse(double x, double y, double z,
[System::Runtime::InteropServices::Out] double% lat,
[System::Runtime::InteropServices::Out] double% lon,
[System::Runtime::InteropServices::Out] double% h);
/**
* Convert from local cartesian to geodetic coordinates and return rotation
* matrix.
*
* @param[in] x local cartesian coordinate (meters).
* @param[in] y local cartesian coordinate (meters).
* @param[in] z local cartesian coordinate (meters).
* @param[out] lat latitude of point (degrees).
* @param[out] lon longitude of point (degrees).
* @param[out] h height of point above the ellipsoid (meters).
* @param[out] M a 3 × 3 rotation matrix.
*
* Let \e v be a unit vector located at (\e lat, \e lon, \e h). We can
* express \e v as \e column vectors in one of two ways
* - in east, north, up coordinates (where the components are relative to a
* local coordinate system at (\e lat, \e lon, \e h)); call this
* representation \e v1.
* - in \e x, \e y, \e z coordinates (where the components are relative to
* the local coordinate system at (\e lat0, \e lon0, \e h0)); call this
* representation \e v0.
* .
* Then we have \e v1 = \e M<sup>T</sup> ⋅ \e v0, where \e
* M<sup>T</sup> is the transpose of \e M.
**********************************************************************/
void Reverse(double x, double y, double z,
[System::Runtime::InteropServices::Out] double% lat,
[System::Runtime::InteropServices::Out] double% lon,
[System::Runtime::InteropServices::Out] double% h,
[System::Runtime::InteropServices::Out] array<double,2>^% M);
/** \name Inspector functions
**********************************************************************/
///@{
/**
* @return latitude of the origin (degrees).
**********************************************************************/
property double LatitudeOrigin { double get(); }
/**
* @return longitude of the origin (degrees).
**********************************************************************/
property double LongitudeOrigin { double get(); }
/**
* @return height of the origin (meters).
**********************************************************************/
property double HeightOrigin { double get(); }
/**
* @return \e a the equatorial radius of the ellipsoid (meters). This is
* the value of \e a inherited from the Geocentric object used in the
* constructor.
**********************************************************************/
property double MajorRadius { double get(); }
/**
* @return \e f the flattening of the ellipsoid. This is the value
* inherited from the Geocentric object used in the constructor.
**********************************************************************/
property double Flattening { double get(); }
///@}
};
} // namespace NETGeographicLib
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