Update FT3

Author: njacazio

Detectors/Upgrades/ALICE3/FT3/base/include/FT3Base/GeometryTGeo.h

@@ -101,9 +101,6 @@ class GeometryTGeo : public o2::itsmft::GeometryTGeo
   static const char* composeSymNameSensor(Int_t d, Int_t lr);
 
  protected:
-  static constexpr int MAXLAYERS = 15; ///< max number of active layers
-
-  Int_t mNumberOfLayers;               ///< number of layers
   static std::string sInnerVolumeName; ///< Mother inner volume name
   static std::string sVolumeName;      ///< Mother volume name
   static std::string sLayerName;       ///< Layer name

Detectors/Upgrades/ALICE3/FT3/simulation/include/FT3Simulation/Detector.h

@@ -109,7 +109,7 @@ class Detector : public o2::base::DetImpl<Detector>
   void PreTrack() override { ; }
 
   /// Returns the number of layers
-  Int_t getNumberOfLayers() const { return mNumberOfLayers; }
+  size_t getNumberOfLayers() const { return mLayerName.size(); }
 
   void buildBasicFT3(const FT3BaseParam& param);
   void buildFT3V1();
@@ -119,14 +119,11 @@ class Detector : public o2::base::DetImpl<Detector>
   void buildFT3ScopingV3();
   void buildFT3FromFile(std::string);
 
-  GeometryTGeo* mGeometryTGeo; //! access to geometry details
-
   void exportLayout();
 
  protected:
   std::vector<Int_t> mLayerID;
   std::vector<std::vector<TString>> mLayerName;
-  Int_t mNumberOfLayers;
 
  private:
   /// this is transient data about track passing the sensor