Changeset 3568 for trunk/MagicSoft/Mars/mastro/MAstroSky2Local.cc

Timestamp:

03/22/04 09:25:49 (21 years ago)

Author:

tbretz

Message:

*** empty log message ***

File:

• trunk/MagicSoft/Mars/mastro/MAstroSky2Local.cc (modified) (2 diffs)

trunk/MagicSoft/Mars/mastro/MAstroSky2Local.cc

@@ -62 +62 @@
 #include "MAstroSky2Local.h"
 
+#include "MAstro.h"
 #include "MTime.h"
 #include "MObservatory.h"
@@ -128 +129 @@
 // seen with an Alt/Az telescope.
 //
+// For more information see MAstro::RotationAngle
+//
 Double_t MAstroSky2Local::RotationAngle(Double_t ra, Double_t dec) const
 {
-    TVector3 loc;
-    loc.SetMagThetaPhi(1, TMath::Pi()/2-dec, ra);
-    loc *= *this;
+    TVector3 v;
+    v.SetMagThetaPhi(1, TMath::Pi()/2-dec, ra);
+    v *= *this;
 
-    TRotation rot;
-    rot.RotateZ(-loc.Phi());
-    rot.RotateY(-loc.Theta());
-
-    TVector3 v(1, 0, 0);
-    v *= *this;
-    v *= rot;
-
-    return TMath::ATan2(v(1), v(0));
+    return MAstro::RotationAngle(ZZ(), XZ(), v.Theta(), v.Phi());
 }