+ // by default an AliITSVertexer3D object is instatiated
+ AliITSVertexer3D* vtxr =
+ new AliITSVertexer3D(GetRecoParam()->GetVertexer3DWideFiducialRegionZ());
+ Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ();
+ Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR();
+ vtxr->SetWideFiducialRegion(dzw,drw);
+ Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ();
+ Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR();
+ vtxr->SetNarrowFiducialRegion(dzn,drn);
+ Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut();
+ Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut();
+ vtxr->SetDeltaPhiCuts(dphil,dphit);
+ Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut();
+ vtxr->SetDCACut(dcacut);
+ Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo();
+ vtxr->SetPileupAlgo(pileupAlgo);
+ UChar_t highmultAlgo=GetRecoParam()->GetSPDVertexerHighMultAlgo();
+ vtxr->SetHighMultAlgo(highmultAlgo);
+ AliDebug(1,Form("AliITSVertexer3D with pileup algo %d has been selected",pileupAlgo));
+ vptr = vtxr;