Add an option for pure cylindrical IRIS

Author: plariono

Detectors/Upgrades/ALICE3/TRK/simulation/include/TRKSimulation/VDGeometryBuilder.h

@@ -24,9 +24,11 @@ namespace o2::trk
 // Each function builds one local petal assembly (walls + layers + disks)
 // and then places/rotates the petal once into the mother volume.
 
-void createIRIS4Geometry(TGeoVolume* motherVolume);  // 4 petals, cylindrical L0
-void createIRIS4aGeometry(TGeoVolume* motherVolume); // 3 petals, cylindrical L0
-void createIRIS5Geometry(TGeoVolume* motherVolume);  // 4 petals, rectangular L0
+void createIRISGeometryFullCyl(TGeoVolume* motherVolume);          // Full-cylinder IRIS geometry (no petals, no gaps, no side walls)
+void createIRISGeometryFullCylwithDisks(TGeoVolume* motherVolume); // Full-cylinder IRIS geometry (no petals, no gaps, no side walls) incl. disks
+void createIRIS4Geometry(TGeoVolume* motherVolume);                // 4 petals, cylindrical L0
+void createIRIS4aGeometry(TGeoVolume* motherVolume);               // 3 petals, cylindrical L0
+void createIRIS5Geometry(TGeoVolume* motherVolume);                // 4 petals, rectangular L0
 
 void createSinglePetalDebug(TGeoVolume* motherVolume, int petalID = 0, int nPetals = 4, bool rectangularL0 = false);
 

Detectors/Upgrades/ALICE3/TRK/simulation/include/TRKSimulation/VDLayer.h

@@ -39,9 +39,10 @@ class VDLayer
  protected:
   int mLayerNumber{0};
   std::string mLayerName;
-  double mX2X0{0.f};          // Radiation length in units of X0
-  double mChipThickness{0.f}; // thickness derived from X/X0
-  double mModuleWidth{4.54f}; // cm
+  double mX2X0{0.f};            // Radiation length in units of X0
+  double mChipThickness{0.f};   // thickness derived from X/X0
+  double mSensorThickness{0.f}; //
+  double mModuleWidth{4.54f};   // cm
 
   // ClassDef(VDLayer, 1)
 };
@@ -54,6 +55,8 @@ class VDCylindricalLayer : public VDLayer
                      double radius, double phiSpanDeg, double lengthZ, double lengthSensZ);
 
   TGeoVolume* createSensor() const; // builds the sensor volume
+  TGeoVolume* createChip() const;
+  TGeoVolume* createMetalStack() const;
   void createLayer(TGeoVolume* motherVolume, TGeoMatrix* combiTrans = nullptr) const override;
 
  private:
@@ -73,6 +76,8 @@ class VDRectangularLayer : public VDLayer
                      double width, double lengthZ, double lengthSensZ);
 
   TGeoVolume* createSensor() const;
+  TGeoVolume* createChip() const;
+  TGeoVolume* createMetalStack() const;
   void createLayer(TGeoVolume* motherVolume, TGeoMatrix* combiTrans = nullptr) const override;
 
  private:
@@ -91,6 +96,8 @@ class VDDiskLayer : public VDLayer
               double rMin, double rMax, double phiSpanDeg, double zPos);
 
   TGeoVolume* createSensor() const;
+  TGeoVolume* createChip() const;
+  TGeoVolume* createMetalStack() const;
   void createLayer(TGeoVolume* motherVolume, TGeoMatrix* combiTrans = nullptr) const override;
 
   double getZPosition() const { return mZPos; }