VR-Link API Documentation for DIS: mgFlatEartTranslation.h Source File

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00001 /*******************************************************************************
00002 ** Copyright (c) 1992-2010 VT MAK
00003 ** All rights reserved.
00004 *******************************************************************************/
00009 #pragma once
00010 
00011 #include "geodCoord.h"
00012 
00013 #ifdef DtUSE_UTILITIES_NAMESPACE
00014 namespace DtUSE_UTILITIES_NAMESPACE
00015 {
00016 #endif
00017 
00024 inline void DtGocentricToMgFlatEarth(const DtVector& in, DtVector& out, const DtFloat64 &refLat, DtFloat64 &refLon ) const 
00025 { 
00026    const double theMultigenFlatEarthRadius = 6366707.02; 
00027    DtGeodeticCoord geodeticPosition; 
00028 
00029    geodeticPosition.setGeocentric(in); 
00030    double lat = DtRad2Deg(geodeticPosition.lat()); 
00031    double lon = DtRad2Deg(geodeticPosition.lon()); 
00032 
00033    out.setY(((lat - DtRad2Deg(refLat)) * 
00034       (theMultigenFlatEarthRadius * M_PI)) / 180.0); 
00035 
00036    out.setX(((lon - DtRad2Deg(refLon)) * 
00037       (theMultigenFlatEarthRadius * M_PI * cos(refLat))) / 180.0); 
00038 
00039    out.setZ(geodeticPosition.alt()); 
00040 } 
00041 
00042 #ifdef DtUSE_UTILITIES_NAMESPACE
00043 }
00044 #endif