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CMSSW_4_4_3_patch1/src/RecoTracker/TkMSParametrization/src/PixelRecoUtilities.cc

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00001 #include "RecoTracker/TkMSParametrization/interface/PixelRecoUtilities.h"
00002 #include "DataFormats/GeometryVector/interface/GlobalPoint.h"
00003 #include "FWCore/Framework/interface/ESHandle.h"
00004 #include "FWCore/Framework/interface/EventSetup.h"
00005 #include "MagneticField/Engine/interface/MagneticField.h"
00006 #include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
00007 
00008 namespace PixelRecoUtilities {
00009   FieldAt0::FieldAt0(const edm::EventSetup& es) {
00010       edm::ESHandle<MagneticField> pSetup;
00011       es.get<IdealMagneticFieldRecord>().get(pSetup);
00012       fieldInInvGev = 1.f/std::abs(pSetup->inTesla(GlobalPoint(0,0,0)).z()  *2.99792458e-3f);
00013     }
00014 
00015 }