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Remove TMath dependencies from TTimestamp.cxx #466

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Merged
dpiparo merged 1 commit into from
Mar 30, 2017
Merged

Remove TMath dependencies from TTimestamp.cxx #466

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12 changes: 6 additions & 6 deletions core/base/src/TTimeStamp.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,6 @@ NOTE: the use of time_t (and its default implementation as a 32 int)
*/

#include "TTimeStamp.h"
#include "TMath.h"
#include "TString.h"
#include "TError.h"
#include "Riostream.h"
Expand Down Expand Up @@ -191,12 +190,13 @@ Double_t TTimeStamp::AsGMST(Double_t UT1Offset) const

Double_t TTimeStamp::AsGAST(Double_t UT1Offset) const
{
Double_t Pi = 3.14159265358979323846;
Double_t D = (AsJulianDate() + UT1Offset/86400000.0) - 2451545.0;
Double_t epsilon = (23.4393 - 0.0000004*D)*TMath::Pi()/180.0;
Double_t L = (280.47 + 0.98565*D)*TMath::Pi()/180.0;
Double_t Omega = (125.04 - 0.052954*D)*TMath::Pi()/180.0;
Double_t Deltapsi = -0.000319*TMath::Sin(Omega) - 0.000024*TMath::Sin(2.0*L);
Double_t eqeq = Deltapsi*TMath::Cos(epsilon);
Double_t epsilon = (23.4393 - 0.0000004 * D) * Pi / 180.0;
Double_t L = (280.47 + 0.98565 * D) * Pi / 180.0;
Double_t Omega = (125.04 - 0.052954 * D) * Pi / 180.0;
Double_t Deltapsi = -0.000319 * std::sin(Omega) - 0.000024 * std::sin(2.0 * L);
Double_t eqeq = Deltapsi * std::cos(epsilon);
Double_t rval = fmod(AsGMST(UT1Offset) + eqeq, 24.0);
return rval < 0 ? rval + 24.0 : rval;
}
Expand Down