+void AliTracker::FillResiduals(const AliExternalTrackParam *t,
+ Double_t *p, Double_t *cov,
+ UShort_t id, Bool_t updated) {
+ //
+ // This function fills the histograms of residuals
+ // The array of these histos is external for this AliTracker class.
+ // Normally, this array belong to AliGlobalQADataMaker class.
+ //
+ if (!fFillResiduals) return;
+ if (!fResiduals) return;
+
+ const Double_t *residuals=t->GetResiduals(p,cov,updated);
+ if (!residuals) return;
+
+ TH1F *h=0;
+ AliGeomManager::ELayerID layer=AliGeomManager::VolUIDToLayer(id);
+ h=(TH1F*)fResiduals->At(2*layer-2);
+ h->Fill(residuals[0]);
+ h=(TH1F*)fResiduals->At(2*layer-1);
+ h->Fill(residuals[1]);
+
+ if (layer==5) {
+ if (p[1]<0) { // SSD1 absolute residuals
+ ((TH1F*)fResiduals->At(40))->Fill(t->GetY()-p[0]); //C side
+ ((TH1F*)fResiduals->At(41))->Fill(t->GetZ()-p[1]);
+ } else {
+ ((TH1F*)fResiduals->At(42))->Fill(t->GetY()-p[0]); //A side
+ ((TH1F*)fResiduals->At(43))->Fill(t->GetZ()-p[1]);
+ }
+ }
+ if (layer==6) { // SSD2 absolute residuals
+ if (p[1]<0) {
+ ((TH1F*)fResiduals->At(44))->Fill(t->GetY()-p[0]); //C side
+ ((TH1F*)fResiduals->At(45))->Fill(t->GetZ()-p[1]);
+ } else {
+ ((TH1F*)fResiduals->At(46))->Fill(t->GetY()-p[0]); //A side
+ ((TH1F*)fResiduals->At(47))->Fill(t->GetZ()-p[1]);
+ }
+ }
+
+}
+