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#pragma once
/**
* \file NETGeographicLib/GeodesicLineExact.h
* \brief Header for NETGeographicLib::GeodesicLineExact 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/
**********************************************************************/
#include "NETGeographicLib.h"
namespace NETGeographicLib
{
ref class GeodesicExact;
/**
* \brief .NET wrapper for GeographicLib::GeodesicLineExact.
*
* This class allows .NET applications to access GeographicLib::GeodesicLineExact.
*
* GeodesicLineExact facilitates the determination of a series of points on a
* single geodesic. This is a companion to the GeodesicExact class. For
* additional information on this class see the documentation on the
* GeodesicLine class.
*
* C# Example:
* \include example-GeodesicLineExact.cs
* Managed C++ Example:
* \include example-GeodesicLineExact.cpp
* Visual Basic Example:
* \include example-GeodesicLineExact.vb
*
* <B>INTERFACE DIFFERENCES:</B><BR>
* A constructor has been provided that assumes WGS84 parameters.
*
* The following functions are implemented as properties:
* Latitude, Longitude, Azimuth, EquatorialAzimuth, EquatorialArc,
* MajorRadius, and Flattening.
*
* The constructors, GenPosition, and Capabilities functions accept the
* "capabilities mask" as a NETGeographicLib::Mask rather than an
* unsigned. The Capabilities function returns a NETGeographicLib::Mask
* rather than an unsigned.
**********************************************************************/
public ref class GeodesicLineExact
{
private:
// a pointer to the GeographicLib::GeodesicLineExact.
const GeographicLib::GeodesicLineExact* m_pGeodesicLineExact;
// the finalizer frees the unmanaged memory when the object is destroyed.
!GeodesicLineExact(void);
public:
/** \name Constructors
**********************************************************************/
///@{
/**
* Constructor for a geodesic line staring at latitude \e lat1, longitude
* \e lon1, and azimuth \e azi1 (all in degrees).
*
* @param[in] g A GeodesicExact object used to compute the necessary
* information about the GeodesicLineExact.
* @param[in] lat1 latitude of point 1 (degrees).
* @param[in] lon1 longitude of point 1 (degrees).
* @param[in] azi1 azimuth at point 1 (degrees).
* @param[in] caps bitor'ed combination of NETGeographicLib::Mask values
* specifying the capabilities the GeodesicLineExact object should
* possess, i.e., which quantities can be returned in calls to
* GeodesicLine::Position.
*
* \e lat1 should be in the range [−90°, 90°]; \e lon1 and \e
* azi1 should be in the range [−540°, 540°).
*
* The NETGeographicLib::Mask values are
* - \e caps |= GeodesicLineExact::LATITUDE for the latitude \e lat2; this
* is added automatically;
* - \e caps |= NETGeographicLib::Mask::LONGITUDE for the latitude \e lon2;
* - \e caps |= NETGeographicLib::Mask::AZIMUTH for the latitude \e azi2; this is
* added automatically;
* - \e caps |= NETGeographicLib::Mask::DISTANCE for the distance \e s12;
* - \e caps |= NETGeographicLib::Mask::REDUCEDLENGTH for the reduced length \e
m12;
* - \e caps |= NETGeographicLib::Mask::GEODESICSCALE for the geodesic scales \e
* M12 and \e M21;
* - \e caps |= NETGeographicLib::Mask::AREA for the area \e S12;
* - \e caps |= NETGeographicLib::Mask::DISTANCE_IN permits the length of the
* geodesic to be given in terms of \e s12; without this capability the
* length can only be specified in terms of arc length;
* - \e caps |= NETGeographicLib::Mask::ALL for all of the above.
* .
*
* If the point is at a pole, the azimuth is defined by keeping \e lon1
* fixed, writing \e lat1 = ±(90° − ε), and taking
* the limit ε → 0+.
**********************************************************************/
GeodesicLineExact(GeodesicExact^ g, double lat1, double lon1, double azi1,
NETGeographicLib::Mask caps );
/**
* A default constructor which assumes the WGS84 ellipsoid. See
* constructor comments for details.
**********************************************************************/
GeodesicLineExact(double lat1, double lon1, double azi1,
NETGeographicLib::Mask caps);
///@}
/**
* The destructor calls the finalizer
**********************************************************************/
~GeodesicLineExact()
{ this->!GeodesicLineExact(); }
/** \name Position in terms of distance
**********************************************************************/
///@{
/**
* Compute the position of point 2 which is a distance \e s12 (meters)
* from point 1.
*
* @param[in] s12 distance between point 1 and point 2 (meters); it can be
* signed.
* @param[out] lat2 latitude of point 2 (degrees).
* @param[out] lon2 longitude of point 2 (degrees); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::LONGITUDE.
* @param[out] azi2 (forward) azimuth at point 2 (degrees).
* @param[out] m12 reduced length of geodesic (meters); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::REDUCEDLENGTH.
* @param[out] M12 geodesic scale of point 2 relative to point 1
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] M21 geodesic scale of point 1 relative to point 2
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] S12 area under the geodesic (meters<sup>2</sup>); requires
* that the GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::AREA.
* @return \e a12 arc length of between point 1 and point 2 (degrees).
*
* The values of \e lon2 and \e azi2 returned are in the range
* [−180°, 180°).
*
* The GeodesicLineExact object \e must have been constructed with \e caps
* |= GeodesicLineExact::DISTANCE_IN; otherwise Math::NaN() is returned and
* no parameters are set. Requesting a value which the GeodesicLineExact
* object is not capable of computing is not an error; the corresponding
* argument will not be altered.
*
* The following functions are overloaded versions of
* GeodesicLineExact::Position which omit some of the output parameters.
* Note, however, that the arc length is always computed and returned as
* the function value.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% m12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21,
[System::Runtime::InteropServices::Out] double% S12);
/**
* See the documentation for GeodesicLineExact::Position.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2);
/**
* See the documentation for GeodesicLineExact::Position.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2);
/**
* See the documentation for GeodesicLineExact::Position.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% m12);
/**
* See the documentation for GeodesicLineExact::Position.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21);
/**
* See the documentation for GeodesicLineExact::Position.
**********************************************************************/
double Position(double s12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% m12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21);
///@}
/** \name Position in terms of arc length
**********************************************************************/
///@{
/**
* Compute the position of point 2 which is an arc length \e a12 (degrees)
* from point 1.
*
* @param[in] a12 arc length between point 1 and point 2 (degrees); it can
* be signed.
* @param[out] lat2 latitude of point 2 (degrees).
* @param[out] lon2 longitude of point 2 (degrees); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::LONGITUDE.
* @param[out] azi2 (forward) azimuth at point 2 (degrees).
* @param[out] s12 distance between point 1 and point 2 (meters); requires
* that the GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::DISTANCE.
* @param[out] m12 reduced length of geodesic (meters); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::REDUCEDLENGTH.
* @param[out] M12 geodesic scale of point 2 relative to point 1
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] M21 geodesic scale of point 1 relative to point 2
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] S12 area under the geodesic (meters<sup>2</sup>); requires
* that the GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::AREA.
*
* The values of \e lon2 and \e azi2 returned are in the range
* [−180°, 180°).
*
* Requesting a value which the GeodesicLineExact object is not capable of
* computing is not an error; the corresponding argument will not be
* altered.
*
* The following functions are overloaded versions of
* GeodesicLineExact::ArcPosition which omit some of the output parameters.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12,
[System::Runtime::InteropServices::Out] double% m12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21,
[System::Runtime::InteropServices::Out] double% S12);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12,
[System::Runtime::InteropServices::Out] double% m12);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21);
/**
* See the documentation for GeodesicLineExact::ArcPosition.
**********************************************************************/
void ArcPosition(double a12,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12,
[System::Runtime::InteropServices::Out] double% m12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21);
///@}
/** \name The general position function.
**********************************************************************/
///@{
/**
* The general position function. GeodesicLineExact::Position and
* GeodesicLineExact::ArcPosition are defined in terms of this function.
*
* @param[in] arcmode boolean flag determining the meaning of the second
* parameter; if arcmode is false, then the GeodesicLineExact object must
* have been constructed with \e caps |= GeodesicLineExact::DISTANCE_IN.
* @param[in] s12_a12 if \e arcmode is false, this is the distance between
* point 1 and point 2 (meters); otherwise it is the arc length between
* point 1 and point 2 (degrees); it can be signed.
* @param[in] outmask a bitor'ed combination of NETGeographicLib::Mask
* values specifying which of the following parameters should be set.
* @param[out] lat2 latitude of point 2 (degrees).
* @param[out] lon2 longitude of point 2 (degrees); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::LONGITUDE.
* @param[out] azi2 (forward) azimuth at point 2 (degrees).
* @param[out] s12 distance between point 1 and point 2 (meters); requires
* that the GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::DISTANCE.
* @param[out] m12 reduced length of geodesic (meters); requires that the
* GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::REDUCEDLENGTH.
* @param[out] M12 geodesic scale of point 2 relative to point 1
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] M21 geodesic scale of point 1 relative to point 2
* (dimensionless); requires that the GeodesicLineExact object was
* constructed with \e caps |= GeodesicLineExact::GEODESICSCALE.
* @param[out] S12 area under the geodesic (meters<sup>2</sup>); requires
* that the GeodesicLineExact object was constructed with \e caps |=
* GeodesicLineExact::AREA.
* @return \e a12 arc length of between point 1 and point 2 (degrees).
*
* The NETGeographicLib::Mask values possible for \e outmask are
* - \e outmask |= NETGeographicLib::Mask::LATITUDE for the latitude \e lat2;
* - \e outmask |= NETGeographicLib::Mask::LONGITUDE for the latitude \e lon2;
* - \e outmask |= NETGeographicLib::Mask::AZIMUTH for the latitude \e azi2;
* - \e outmask |= NETGeographicLib::Mask::DISTANCE for the distance \e s12;
* - \e outmask |= NETGeographicLib::Mask::REDUCEDLENGTH for the reduced length
* \e m12;
* - \e outmask |= NETGeographicLib::Mask::GEODESICSCALE for the geodesic scales
* \e M12 and \e M21;
* - \e outmask |= NETGeographicLib::Mask::AREA for the area \e S12;
* - \e outmask |= NETGeographicLib::Mask::ALL for all of the above.
* .
* Requesting a value which the GeodesicLineExact object is not capable of
* computing is not an error; the corresponding argument will not be
* altered. Note, however, that the arc length is always computed and
* returned as the function value.
**********************************************************************/
double GenPosition(bool arcmode, double s12_a12,
NETGeographicLib::Mask outmask,
[System::Runtime::InteropServices::Out] double% lat2,
[System::Runtime::InteropServices::Out] double% lon2,
[System::Runtime::InteropServices::Out] double% azi2,
[System::Runtime::InteropServices::Out] double% s12,
[System::Runtime::InteropServices::Out] double% m12,
[System::Runtime::InteropServices::Out] double% M12,
[System::Runtime::InteropServices::Out] double% M21,
[System::Runtime::InteropServices::Out] double% S12);
///@}
/** \name Inspector functions
**********************************************************************/
///@{
/**
* @return \e lat1 the latitude of point 1 (degrees).
**********************************************************************/
property double Latitude { double get(); }
/**
* @return \e lon1 the longitude of point 1 (degrees).
**********************************************************************/
property double Longitude { double get(); }
/**
* @return \e azi1 the azimuth (degrees) of the geodesic line at point 1.
**********************************************************************/
property double Azimuth { double get(); }
/**
* @return \e azi0 the azimuth (degrees) of the geodesic line as it crosses
* the equator in a northward direction.
**********************************************************************/
property double EquatorialAzimuth { double get(); }
/**
* @return \e a1 the arc length (degrees) between the northward equatorial
* crossing and point 1.
**********************************************************************/
property double EquatorialArc { double get(); }
/**
* @return \e a the equatorial radius of the ellipsoid (meters). This is
* the value inherited from the GeodesicExact 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 GeodesicExact object used in the constructor.
**********************************************************************/
property double Flattening { double get(); }
/**
* @return \e caps the computational capabilities that this object was
* constructed with. LATITUDE and AZIMUTH are always included.
**********************************************************************/
NETGeographicLib::Mask Capabilities();
/**
* @param[in] testcaps a set of bitor'ed GeodesicLineExact::mask values.
* @return true if the GeodesicLineExact object has all these capabilities.
**********************************************************************/
bool Capabilities(NETGeographicLib::Mask testcaps);
///@}
};
} // namespace NETGeographicLib
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