Dear Djamel, AT this point I am quite at a loss. I chekcked the latest changes running actual data *(Run 2235 and 2238) with TPM1, TPM2 doing track matching - momentum spectra and got the same/similar results as a few days ago before the changes. The problems might be related to T1,T2 and possibly to the introduction of the row dependent time corection but do not really know since I am not looking at this. The search width in X and Y looks quite small , what does Peter say in this regard? Flemming ------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax: 631-344-1334 videbaek@bnl.gov ----- Original Message ----- From: Djamel Ouerdane To: brahms-dev-l@bnl.gov Sent: Thursday, September 07, 2000 5:57 PM Subject: Local tracking Hi again, I have updated brat once again after Flemming's changes and now I get some sequences after digitization. But I still get no local tracks after the reconstruction step. Here is the piece of code I use (Peter's procedure): // Local tracking BrModuleContainer *c = new BrModuleContainer("c","container"); Char_t *name[2] = { "T1", "T2"}; for( Int_t i = 0; i < 2; i++ ) { BrTrackFollowFinderModule *tracker = new BrTrackFollowFinderModule(name[i], "TPC Tracker"); tracker->SetAddCluster(kTRUE); tracker->GetClusterFinder()->SetMaxPixelCutoff(10.0); // Set tracking method BrTrackFollowFinder *trackDummy = (BrTrackFollowFinder*)tracker->GetTrackFinder(); trackDummy->SetTrackingMethod(1); trackDummy->SetSearchWidthX(0.2); trackDummy->SetSearchWidthY(0.1); c->AddModule(tracker); } and then, in the event loop: c->Event(event, event); I put a debug level in trackDummy (BrTrackFollowFinder) and noticed that some local tracks do exist but it seems that they are not added to the track tables (apparently) so that they remain empty in the event node. Need some help there too... Thanks Djam
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