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Rather than create an SGTime structure and trigger a spurious

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"*** NO TIMEZONE" error message, just grab the modified julian date
directly.
This commit is contained in:
curt 2001-07-03 16:45:34 +00:00
parent fe0c17625b
commit db40b8c48b
1 changed files with 7 additions and 6 deletions
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13
src/Navaids/nav.hxx
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@ -103,12 +103,11 @@ operator >> ( istream& in, FGNav& n )
char c /* , magvar_dir */ ;
string magvar_s;
static SGTime time_params;
static bool first_time = true;
static double julian_date = 0;
static const double MJD0 = 2415020.0;
if ( first_time ) {
time_params.update( 0.0, 0.0, 0 );
julian_date = time_params.getJD();
julian_date = sgTimeCurrentMJD( 0 ) + MJD0;
first_time = false;
}
@ -129,9 +128,11 @@ operator >> ( istream& in, FGNav& n )
// cout << "lat = " << n.lat << " lon = " << n.lon << " elev = "
// << n.elev << " JD = "
// << julian_date << endl;
n.magvar = sgGetMagVar(n.lon * SGD_DEGREES_TO_RADIANS, n.lat * SGD_DEGREES_TO_RADIANS,
n.elev * SG_FEET_TO_METER,
julian_date) * SGD_RADIANS_TO_DEGREES;
n.magvar = sgGetMagVar( n.lon * SGD_DEGREES_TO_RADIANS,
n.lat * SGD_DEGREES_TO_RADIANS,
n.elev * SG_FEET_TO_METER,
julian_date )
* SGD_RADIANS_TO_DEGREES;
// cout << "Default variation at " << n.lon << ',' << n.lat
// << " is " << var << endl;
#if 0