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Overload the SGMagVar::update method to take an SGGeod.

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jmt 2010-03-14 12:00:54 +00:00 committed by Tim Moore
parent ff95af0367
commit 5da3d64ede
2 changed files with 15 additions and 0 deletions
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7
simgear/magvar/magvar.cxx
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@ -24,6 +24,7 @@
#include <math.h>
#include <simgear/magvar/magvar.hxx>
#include <simgear/math/SGMath.hxx>
#include "coremag.hxx"
#include "magvar.hxx"
@ -47,6 +48,12 @@ void SGMagVar::update( double lon, double lat, double alt_m, double jd ) {
magdip = atan(field[5]/sqrt(field[3]*field[3]+field[4]*field[4]));
}
void SGMagVar::update( const SGGeod& geod, double jd ) {
update(geod.getLongitudeDeg(), geod.getLatitudeDeg(),
geod.getElevationM(), jd);
}
double sgGetMagVar( double lon, double lat, double alt_m, double jd ) {
// cout << "lat = " << lat << " lon = " << lon << " elev = " << alt_m

8
simgear/magvar/magvar.hxx
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@ -33,6 +33,9 @@
#endif
// forward decls
class SGGeod;
/**
* Magnetic variation wrapper class.
*
@ -78,6 +81,11 @@ public:
*/
void update( double lon, double lat, double alt_m, double jd );
/**
* overloaded variant taking an SGGeod to specify position
*/
void update( const SGGeod& geod, double jd );
/** @return the current magnetic variation in radians. */
double get_magvar() const { return magvar; }