X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TPC%2FAliTPCExBTwist.cxx;h=4c120f9f7e4269540044656ebef22ecd50f87567;hb=245f912aeb7deb90c760d2f0cee9aa528bc5bced;hp=f9e2dd2b310ced4dad36ab15c57451b8c6820f01;hpb=534fd34a78064d8c2ef7b76af402185b9bd59304;p=u%2Fmrichter%2FAliRoot.git

diff --git a/TPC/AliTPCExBTwist.cxx b/TPC/AliTPCExBTwist.cxx
index f9e2dd2b310..4c120f9f7e4 100644
--- a/TPC/AliTPCExBTwist.cxx
+++ b/TPC/AliTPCExBTwist.cxx
@@ -14,22 +14,10 @@
  **************************************************************************/
 
 ////////////////////////////////////////////////////////////////////////////
-//                                                                        //
 // AliTPCExBTwist class                                                   //
-// The class calculates the space point distortions due to a mismatch     //
-// of the E and B field axis (original code from STAR)                    //
-// The class allows "effective Omega Tau" corrections.                    // 
-//                                                                        //
-// date: 27/04/2010                                                       //
-// Authors: Jim Thomas, Magnus Mager, Stefan Rossegger                    //
-//                                                                        //
-// Example usage:                                                         //
-//  AliTPCExBTwist twist;                                                 //
-//  twist.SetOmegaTauT1T2(0.32,1.,1.); // values ideally from OCDB        //
-//  twist.SetXTwist(0.001);   // set twist in X direction (in rad)        //
-//  // plot dRPhi distortions ...                                         //
-//  twist.CreateHistoDRPhiinZR(1.,100,100)->Draw("surf2");                //
 ////////////////////////////////////////////////////////////////////////////
+
+
 #include "AliMagF.h"
 #include "TGeoGlobalMagField.h"
 #include "AliTPCcalibDB.h"
@@ -101,7 +89,7 @@ void AliTPCExBTwist::GetCorrection(const Float_t x[],const Short_t roc,Float_t d
   // 
   
   const Float_t zstart=x[2];
-  const Float_t zend  =(roc%36<18?fgkTPC_Z0:-fgkTPC_Z0);
+  const Float_t zend  =(roc%36<18?fgkTPCZ0:-fgkTPCZ0);
   const Float_t zdrift=zstart-zend;
   
   dx[0]=(fC2*fXTwist-fC1*fYTwist)*zdrift;
@@ -109,7 +97,7 @@ void AliTPCExBTwist::GetCorrection(const Float_t x[],const Short_t roc,Float_t d
   dx[2]=0.;
 }
 
-void AliTPCExBTwist::Print(Option_t* option) const {
+void AliTPCExBTwist::Print(const Option_t* option) const {
   //
   // Print function to check the settings (e.g. the twist in the X direction)
   // option=="a" prints the C0 and C1 coefficents for calibration purposes