vrlink5.6/hla13/geocentric_to_mg_flat_earth_8h_source.html

 /*******************************************************************************

 ** Copyright (c) 1992-2010 VT MAK

 ** All rights reserved.

 *******************************************************************************/

 #pragma once


 #include "geodeticCoord.h"


 #ifdef DtUSE_UTILITIES_NAMESPACE

 namespace DtUSE_UTILITIES_NAMESPACE

 {

 #endif


 inline void DtGeocentricToMgFlatEarth(const DtVector& in, DtVector& out, const DtFloat64 &refLat, DtFloat64 &refLon ) const

 {

    const double theMultigenFlatEarthRadius = 6366707.02;

    DtGeodeticCoord geodeticPosition;


    geodeticPosition.setGeocentric(in);

    double lat = DtRad2Deg(geodeticPosition.lat());

    double lon = DtRad2Deg(geodeticPosition.lon());


    out.setY(((lat - DtRad2Deg(refLat)) *

       (theMultigenFlatEarthRadius * M_PI)) / 180.0);


    out.setX(((lon - DtRad2Deg(refLon)) *

       (theMultigenFlatEarthRadius * M_PI * cos(refLat))) / 180.0);


    out.setZ(geodeticPosition.alt());

 }


 #ifdef DtUSE_UTILITIES_NAMESPACE

 }

 #endif

DtGeodeticCoord::alt
virtual DtFloat64 alt() const
Definition: geodeticCoord.h:100

DtRad2Deg
double DtRad2Deg(double rad)
Converts Radians to Degrees.
Definition: vlMath.h:81

DtGeodeticCoord::setGeocentric
virtual DtGeodeticCoord & setGeocentric(const DtVector &geocentric)
Set from geocentric coordinate (convert geocentric to geodetic).

DtVectorT::setX
void setX(const T &x)
gets/sets the x component of a Vector

geodeticCoord.h
This file provides a definition of GeodeticCoords and several helper functions.

double

DtGeodeticCoord
Instances of DtGeodeticCoord are used to explicitly represent Geodetic coordinates.
Definition: geodeticCoord.h:29

DtVector64
Definition: vlVector.h:224

DtVectorT::setZ
void setZ(const T &z)
gets/sets the z component of a Vector

DtVectorT::setY
void setY(const T &y)
gets/sets the y component of a Vector

M_PI
#define M_PI
Definition: vlMath.h:58

DtGeocentricToMgFlatEarth
void DtGeocentricToMgFlatEarth(const DtVector &in, DtVector &out, const DtFloat64 &refLat, DtFloat64 &refLon) const
Preforms Multigen Flat Earth transforms from Geocentric Coordinates.
Definition: geocentricToMgFlatEarth.h:24

DtGeodeticCoord::lat
virtual DtFloat64 lat() const
Definition: geodeticCoord.h:90

DtGeodeticCoord::lon
virtual DtFloat64 lon() const
Definition: geodeticCoord.h:95