VR-Link API Documentation for HLA 1.3: refEllipsoid.h Source File

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00001 /*******************************************************************************
00002 ** Copyright (c) 1992-2010 VT MAK
00003 ** All rights reserved.
00004 *******************************************************************************/
00005 
00006 
00007 #ifndef GeodeticEllipsoid_H_
00008 #define GeodeticEllipsoid_H_
00009 
00010 #include <vlutil/vlNetTypes.h>
00011 #include "vlVector.h"
00012 #include <vlutil/vlMachineTypes.h>
00013 #include "mapDatum.h"
00014 
00019 
00020 #ifdef DtUSE_UTILITIES_NAMESPACE
00021 namespace DtUSE_UTILITIES_NAMESPACE
00022 {
00023 #endif
00024 
00025 
00041 class DT_DLL_MATRIX DtReferenceEllipsoid
00042 {
00043 public:
00044     DtReferenceEllipsoid( const DtMapDatum& datum );
00045     virtual ~DtReferenceEllipsoid();
00046 
00047     void useMapDatum( const DtMapDatum& datum );
00048     const DtMapDatum& mapDatum() const;
00049 
00050     void geocentricToGeodetic( const DtVector& gc, DtVector& gd ) const;
00051     void geodeticToGeocentric( const DtVector& gd, DtVector& gc ) const;
00052 
00053 protected:
00054 
00055     void initialize_ellipsoid( double a, double f );
00056     void geo_to_rad( double deg, double min, double sec, double* radian ) const;
00057     void rad_to_geo( double radian, double* deg, double* min, double* sec ) const;
00058 
00059 
00060 
00061     void geodetic_to_geocentric( double lat, double lon, double height,
00062        double* x, double* y, double* z ) const;
00063     
00073     void geocentric_to_geodetic( double xp, double yp, double zp,
00074        double* lat, double* lon, double* height ) const;
00075 
00076 public:
00077 
00081    static void setMaxIterationsForConvergence(unsigned int maxItr);
00082 
00084    static unsigned int maxIterationsForConvergence();
00085 protected:
00086 
00087    static unsigned int theMaxIterationsForConvergence;
00088 
00089    DtMapDatum myMapDatum;
00090    int myInited;
00091 
00092    double ellipse_a;           
00093    double ellipse_a_sq;        
00094    double ellipse_f;           
00095    double ellipse_b;           
00096    double ellipse_b_sq;        
00097    double ellipse_a_sq_over_b; 
00098    double ellipse_e;           
00099    double ellipse_c1;          
00100 };
00101 
00104 DT_DLL_MATRIX DtReferenceEllipsoid* DtGlobalEllipsoid();
00105 
00106 #ifdef DtUSE_UTILITIES_NAMESPACE
00107 }
00108 #endif
00109 
00110 #endif   //! GeodeticEllipsoid_H_
00111