CoordSysSvc.h

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#ifndef COORDSYSSVC_H
#define COORDSYSSVC_H

#include "GaudiKernel/Service.h"
#include "DetHelpers/ICoordSysSvc.h"

class IDataProviderSvc;
class IGeometryInfo;

#include <string>

class CoordSysSvc : public Service, 
                    virtual public ICoordSysSvc
{
public:
    // Service interface
    CoordSysSvc(const std::string& name, ISvcLocator *svc);
    ~CoordSysSvc();
    virtual StatusCode initialize();
    virtual StatusCode finalize();
    virtual StatusCode queryInterface(const InterfaceID& riid, 
                                      void** ppvInterface);


    IDetectorElement* belongsToDE(const Gaudi::XYZPoint& globalPoint, 
                                  IDetectorElement* start=0, int depth=-1);

    IDetectorElement* coordSysDE(const Gaudi::XYZPoint& globalPoint, 
                                 int height=0);

    IDetectorElement* coordSysDE(const Gaudi::XYZPoint& globalPoint, 
                                 IDetectorElement* start, int height=0);

    IDetectorElement* nextHigherCoordSysDE(IDetectorElement* csde);

private:
    
    std::string m_CoordSysUserParameter;

    std::string m_TopDetectorElementName;

    IDataProviderSvc* m_detSvc;

    // Top GI
    IGeometryInfo* m_topGI;

    // Cache last optimization attempt
    IDetectorElement* m_lastBelongsTo;
    IDetectorElement* m_lastCoordSys;
    
};


#endif  // COORDSYSSVC_H