------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax: 631-344-1334 videbaek@bnl.gov Hello everyone :-) As promised, I have updated the vtx-directory. All the files in there have changed, no others. Naming changes: Old BrVertex is now BrTPMTrackVertexModule Old BrHCVertex is now BrTPMClusterVertexModule Old BrVertexData is now BrVertex I have also made the following changes: * Added uncertainty-estimate in BrTPMClusterVertexModule. It now fills the data-member fVertexSigma in BrVertex, and is the sigma of the gaussian used to find z. Note that BrTPMTrackVertexModule instead fills fVertexChisq in BrVertex, the chi-squared found from using the method of least squares on the tracks. * Made the syntax more uniform. Usage for the modules: BrTPMTrackVertexModule* vertex = new BrTPMTrackVertexModule("VTX","VertexFinder","TPM1"); or BrTPMClusterVertexModule* vertex = new BrTPMClusterVertexModule("VTX","VertexFinder","TPM1"); Then, in the event-loop: BrDataTable *localtracks = track_node->GetDataTable("DetectorTrack TPM1"); vertex->SetDetectorTracks(localtracks); vertex->Event(inputnode,outputnode); or BrClonesArray *detector_hits = tpm1_clusterfinder->GetDetectorHits(); vertex->SetDetectorHits(detector_hits); vertex->Event(inputnode,outputnode)); This adds a BrVertex called "VtxData" to outputnode, which contains datamembers for x,y,z (seperate floats now, not a vector), uncertainties etc. See also the CVS-comment. I am working on improving both methods, especially determining more than the z in BrTPMClusterVertexModule and optimizing BrTPMTrackVertexModule for the new tracking-code. Updates will follow after the Norwegian Physicists Conference :-) Cheers :-) ------------------------------------------------ Bjørn H. Samset Hovedfagsstudent, tungionefysikk Mob: 92 05 19 98 Lesesal: 22 85 77 62 Adr: Kri 2A709 Sognsveien 218 0864 Oslo
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