CbmStsSetup.cxx

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/** @file CbmStsSetup.cxx
 ** @author Volker Friese <v.friese@gsi.de>
 ** @date 27.05.2013
 **/
 
#include "setup/CbmStsSetup.h"
 
#include "TGeoManager.h"
#include "TGeoPhysicalNode.h"
 
// -----   Initialisation of static singleton pointer   ----------------------
CbmStsSetup* CbmStsSetup::fgInstance = NULL;
// ---------------------------------------------------------------------------
 
// -----   Level names   -----------------------------------------------------
const TString CbmStsSetup::fgkLevelName[] = {"sts",    "station", "ladder", "halfladder",
                                             "module", "sensor",  "side",   "channel"};
// ---------------------------------------------------------------------------
 
// -----   Constructor   -----------------------------------------------------
CbmStsSetup::CbmStsSetup()
    : CbmStsElement("STS Setup", "system", kStsSystem)
{}
// ---------------------------------------------------------------------------
 
// -----   Intialisation from TGeoManager   ----------------------------------
Bool_t CbmStsSetup::Init(TGeoManager* geo)
{
 
    // --- Catch non-existence of GeoManager
    if (!geo) {
        LOG(fatal) << "fName: no TGeoManager!";
        return kFALSE;
    }
 
    // --- Get cave (top node)
    LOG(info) << fName << ": " << " Reading geometry from TGeoManager " << geo->GetName();
    geo->CdTop();
    TGeoNode* cave = geo->GetCurrentNode();
    LOG(info) << "Top node: " << cave->GetName();
 
    // --- Get top STS node
    TGeoNode* sts = NULL;
    for (Int_t iNode = 0; iNode < cave->GetNdaughters(); iNode++) {
        TString name = cave->GetDaughter(iNode)->GetName();
        if (name.Contains("STS", TString::kIgnoreCase)) {
            sts = cave->GetDaughter(iNode);
            geo->CdDown(iNode);
            LOG(info) << fName << ": found STS node " << sts->GetName();
            break;
        }
    }
    if (!sts) {
        LOG(error) << fName << ": No top STS node found in geometry!";
        return kFALSE;
    }
 
    // --- Create physical node for sts
    TString path = cave->GetName();
    path = path + "/" + sts->GetName();
    LOG(info) << "Path to STS is " << path;
    fNode = new TGeoPhysicalNode(path);
    LOG(info) << "PN name " << fNode->GetName();
 
    // --- Initialise daughter elements
    InitDaughters();
 
    return kTRUE;
}
// ---------------------------------------------------------------------------
 
// -----   Instance   --------------------------------------------------------
CbmStsSetup* CbmStsSetup::Instance()
{
    if (!fgInstance)
        fgInstance = new CbmStsSetup();
    return fgInstance;
}
// ---------------------------------------------------------------------------