Bug fix in treatment of the vertex finder covariance matrix (Andrea)

[u/mrichter/AliRoot.git] / FMD / AliFMDGeometry.h

diff --git a/FMD/AliFMDGeometry.h b/FMD/AliFMDGeometry.h
index 90c3dc1f132ac106664ebcfa46a2d3e4898a4fbd..089e4c9e7617a0577619c44b7c33a699c31f0a8e 100644 (file)
--- a/FMD/AliFMDGeometry.h
+++ b/FMD/AliFMDGeometry.h
@@ -12,12 +12,13 @@
     @date    Mon Mar 27 12:40:37 2006
     @brief   Geometry mananger for the FMD
 */
-//____________________________________________________________________ 
-//  
+//____________________________________________________________________
+//                                                                          
 // Forward Multiplicity Detector based on Silicon wafers. 
 //
 // This class is a singleton that handles the geometry parameters of
 // the FMD detectors.  
+// The actual code is done by various separate classes.
 //                                                       
 #ifndef ALIGEOMETRY_H
 # include <AliGeometry.h>
@@ -175,6 +176,9 @@ public:
   void   SetActive(Int_t* active, Int_t n);
   /** @param id Register volume @a id to be active */
   void   AddActive(Int_t id);
+  /** Get Array of active volume numbers 
+      @return constant reference to active volume numbers */ 
+  const TArrayI& ActiveIds() const { return fActive; }
   /** Set an external geometry builder
       @param b Geometry builder */
   void   SetBuilder(AliFMDGeometryBuilder* b) { fBuilder = b; }
@@ -204,6 +208,8 @@ public:
       @param particle Track 
       @return @c true if @a particle will hit this detector */
   virtual Bool_t Impact(const TParticle* particle) const;
+  /** Declare alignable volumes */
+  virtual void SetAlignableVolumes() const;
 protected:
   Bool_t        fIsInitialized; // Whether singleton is initalized
   AliFMDRing*  fInner;         // Inner ring geometry information
@@ -226,16 +232,16 @@ protected:
   AliFMDGeometry& operator=(const AliFMDGeometry& other);
   virtual ~AliFMDGeometry() {}
   
-  AliFMDGeometryBuilder* fBuilder;
-  Int_t fDetectorOff;
-  Int_t fModuleOff;  
-  Int_t fRingOff;    
-  Int_t fSectorOff;  
-  TArrayI fActive;
-  Bool_t fDetailed;
-  Bool_t fUseAssembly;
+  AliFMDGeometryBuilder* fBuilder; // Geometry builder 
+  Int_t fDetectorOff;              // Detector off-set 
+  Int_t fModuleOff;                // Module off-set 
+  Int_t fRingOff;                  // ring offset
+  Int_t fSectorOff;                // Sector offset    
+  TArrayI fActive;                 // Active volumes
+  Bool_t fDetailed;                // Whether to make detailed geom
+  Bool_t fUseAssembly;             // Whther to use assemblies 
 
-  ClassDef(AliFMDGeometry,1); //
+  ClassDef(AliFMDGeometry,1); // Geometry parameters and manager 
 };