- // currently the L1 trigger is directly put here
- // lateron can be separated such that from here the
- // pretrigger (generating an L0) and L1 can be called
-
- AliRunLoader *runLoader = AliRunLoader::Instance();
- if (!runLoader)
- return;
- AliLoader *trdLoader = runLoader->GetLoader("TRDLoader");
- if (!trdLoader)
- return;
-
- // now running the GTU tracking;
- AliTRDgtuSim *gtusim = new AliTRDgtuSim();
- gtusim->RunGTU(trdLoader, 0x0);
- gtusim->WriteTracksToLoader();
-
- TTree *trackTree = trdLoader->GetDataLoader("gtutracks")->Tree();
- if (!trackTree) {
- AliDebug(1,"Did not find track tree");
- return;
- }
- TBranch *branch = trackTree->GetBranch("TRDtrackGTU");
- AliDebug(1,Form("TRD trigger: found %i tracks", trackTree->GetEntriesFast()));
-
- // trigger thresholds should go elsewhere
- Float_t ptThreshold1 = 2;
- Float_t ptThreshold2 = 9.9;
- Int_t trackThreshold1 = 6;
- Int_t trackThreshold2 = 2;
-
- // trigger algorithms to come, e.g.
- Bool_t triggered_highpt = kFALSE;
- Bool_t triggered_jet = kFALSE;
-
- if (branch) {
- AliTRDtrackGTU *trk = 0x0;
- branch->SetAddress(&trk);
-
- // high pt trigger
- for (Int_t iTrack = 0; iTrack < trackTree->GetEntriesFast(); iTrack++) {
- trackTree->GetEntry(iTrack);
- if (TMath::Abs(trk->GetPt()) > 3.0) {
- AliInfo(Form("Found track in sector %2i, stack %i with pt = %3.1f, triggered",
- trk->GetSector(), trk->GetStack(), trk->GetPt()));
- triggered_highpt = kTRUE;
- }
- }
-
- // jet trigger
- Int_t nTracks1[90]; // tracks above lower pt threshold
- Int_t nTracks2[90]; // tracks above higher pt threshold
- for (Int_t iTrack = 0; iTrack < trackTree->GetEntriesFast(); iTrack++) {
- trackTree->GetEntry(iTrack);
- if (TMath::Abs(trk->GetPt()) > ptThreshold1)
- nTracks1[5*trk->GetSector() + trk->GetStack()]++;
- if (TMath::Abs(trk->GetPt()) > ptThreshold2)
- nTracks2[5*trk->GetSector() + trk->GetStack()]++;
- }
- for (Int_t iStack = 0; iStack < 90; iStack++) {
- if ((nTracks1[iStack] >= trackThreshold1) || (nTracks2[iStack] >= trackThreshold2))
- triggered_jet = kTRUE;
- }
- }
- else {
- AliWarning("GTU Branch not found");
- }