*
* See cxx source for full Copyright notice
*/
+//__________________________________________________________________
+//
+// Utility class to help implement the FMD geometry. This provides
+// the interface for the concrete geometry implementations of the FMD
+// sub-detectors.
+/** @file AliFMDDetector.h
+ @author Christian Holm Christensen <cholm@nbi.dk>
+ @date Mon Mar 27 12:36:27 2006
+ @brief Sub-detector base class declaration
+ @ingroup FMD_base
+*/
#ifndef ROOT_TNamed
# include <TNamed.h>
#endif
class AliFMDRing;
+class TGeoMatrix;
-
+/** @defgroup FMD_base Basic classes */
//__________________________________________________________________
-/** Base class for the geometry description and parameters of the FMD
- sub detectors FMD1, FMD2, and FMD3.
+/** @brief Base class for the geometry description and parameters of
+ the FMD sub detectors FMD1, FMD2, and FMD3.
This class hold common parameters of the specific FMD detectors.
+ @ingroup FMD_base
*/
class AliFMDDetector : public TNamed
{
public:
+ /** Constructor
+ @param id Detector number
+ @param inner Pointer to inner ring geometry
+ @param outer Pointer to inner outer geometry
+ @return */
AliFMDDetector(Int_t id, AliFMDRing* inner, AliFMDRing* outer);
+ /** Copy CTOR
+ @param other Object to copy from. */
+ AliFMDDetector(const AliFMDDetector& other);
+ /** Assignment operator
+ @param other Object to assign from
+ @return reference to this object */
+ AliFMDDetector& operator=(const AliFMDDetector& other);
virtual ~AliFMDDetector() {}
/** Initialize the geometry */
virtual void Init();
-
+ /** Find the transformations that correspond to modules of this
+ detector, and store them in the arrays. */
+ virtual void InitTransformations();
+
/** @param x Detector number */
void SetId(Int_t x) { fId = x; }
/** @param x Position of outer ring along z */
void SetInnerZ(Double_t x) { fInnerZ = x; }
/** @param x Position of outer ring along z */
void SetOuterZ(Double_t x) { fOuterZ = x; }
- /** @param x Thickness of honeycomb plate */
- void SetHoneycombThickness(Double_t x=1) { fHoneycombThickness = x; }
- /** @param x Thickness of aluminium of honeycomb */
- void SetAlThickness(Double_t x=.1) { fAlThickness = x; }
/** @param x Inner radius of inner honeycomb */
void SetInnerHoneyLowR(Double_t x) { fInnerHoneyLowR = x; }
/** @param x Outer radius of inner honeycomb */
Double_t GetInnerZ() const { return fInnerZ; }
/** @return Position of outer ring along z */
Double_t GetOuterZ() const { return fOuterZ; }
- /** @return Thickness of honeycomb plate */
- Double_t GetHoneycombThickness() const { return fHoneycombThickness; }
- /** @return Thickness of aluminium of honeycomb */
- Double_t GetAlThickness() const { return fAlThickness; }
/** @return Inner radius of inner honeycomb */
Double_t GetInnerHoneyLowR() const { return fInnerHoneyLowR; }
/** @return Outer radius of inner honeycomb */
@return Z position of ring or 0 on failure */
Double_t GetRingZ(Char_t id) const;
+ /** Translate detector coordinates (detector, ring, sector, strip)
+ to spatial coordinates (x, y, z) in the master reference frame
+ of ALICE. The member function uses the transformations
+ previously obtained from the TGeoManager.
+ @param ring Ring id
+ @param sector Sector number
+ @param strip Strip number
+ @param x On return, X coordinate
+ @param y On return, Y coordinate
+ @param z On return, Z coordinate */
void Detector2XYZ(Char_t ring, UShort_t sector, UShort_t strip,
Double_t& x, Double_t& y, Double_t& z) const;
+ /** Translate spatial coordinates (x,y,z) in the master reference
+ frame of ALICE to the detector coordinates (detector, ring,
+ sector, strip). Note, that if this method is to be used in
+ reconstruction or the like, then the input z-coordinate should
+ be corrected for the events interactions points z-coordinate,
+ like
+ @code
+ geom->XYZ2Detector(x,y,z-ipz,d,r,s,t);
+ @endcode
+ @param x X coordinate
+ @param y Y coordinate
+ @param z Z coordinate
+ @param ring On return, Ring id
+ @param sector On return, Sector number
+ @param strip On return, Strip number
+ @return @c false of (@a x, @a y, @a z) is not within this
+ detector. */
+ Bool_t XYZ2Detector(Double_t x, Double_t y, Double_t z,
+ Char_t& ring, UShort_t& sector, UShort_t& strip) const;
+ /** Declare alignable volumes */
+ virtual void SetAlignableVolumes() const;
+ /** Get transformation matrix for a sector in a ring
+ @param ring Ring id
+ @param sector Sector numberr
+ @return Matrix on success, 0 otherwise */
+ TGeoMatrix* FindTransform(Char_t ring, UShort_t sector) const;
protected:
+ /** Check if we have all transformations for a ring
+ @param ring Ring to check for
+ @return @c true if we got all transforms */
+ Bool_t HasAllTransforms(Char_t ring) const;
+
Int_t fId; // Detector number
Double_t fInnerZ; // Position of outer ring along z
Double_t fOuterZ; // Position of outer ring along z
- Double_t fHoneycombThickness; // Thickness of honeycomb plate
- Double_t fAlThickness; // Thickness of aluminium of honeycomb
Double_t fInnerHoneyLowR; // Inner radius of inner honeycomb
Double_t fInnerHoneyHighR; // Outer radius of inner honeycomb
Double_t fOuterHoneyLowR; // Inner radius of outer honeycomb
Double_t fOuterHoneyHighR; // Outer radius of outer honeycomb
AliFMDRing* fInner; // Pointer to inner ring information
AliFMDRing* fOuter; // Pointer to outer ring information
-
- ClassDef(AliFMDDetector, 1); //
+ TObjArray* fInnerTransforms; // List of inner module global
+ TObjArray* fOuterTransforms; // List of outer module global
+
+ ClassDef(AliFMDDetector, 2); //
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff