Inserting BLines for NSW

adding @rosati and @nkoehler

MuonSpectrometer/MuonDetDescr/MuonReadoutGeometry/MuonReadoutGeometry/MMReadoutElement.h

@@ -17,6 +17,8 @@
 
 class StoreGateSvc;
 
+class BLinePar;
+
 namespace Trk{
   class RectangleBounds;
   class PlaneSurface;
@@ -123,7 +125,13 @@ namespace MuonGM {
     inline double getALine_rotz() const;
     inline double getALine_rott() const;
     inline bool has_ALines() const;
+    inline bool has_BLines() const;
     void setDelta(double, double, double, double, double, double); //input: translations, rotations
+    void setBLinePar(BLinePar* bLine) const;
+    inline void clearBLinePar() const;
+    inline const BLinePar* getBLinePar() const { return m_BLinePar;}
+    void clearBLineCache() const;
+    void fillBLineCache() const;
   private:
 
 
@@ -146,13 +154,19 @@ namespace MuonGM {
     double m_rott;
 
     bool m_hasALines;
+    bool m_hasBLines;
 
     HepGeom::Transform3D* m_delta;
+
+    mutable BLinePar* m_BLinePar;
     
     // transforms (RE->layer)
     Amg::Transform3D m_Xlg[4];
   };
 
+  void MMReadoutElement::clearBLinePar() const
+  { m_BLinePar = 0;}
+
   double MMReadoutElement::getALine_rots() const
   { return m_rots;}
 
@@ -165,6 +179,9 @@ namespace MuonGM {
   bool MMReadoutElement::has_ALines() const
   { return m_hasALines;}
 
+  bool MMReadoutElement::has_BLines() const
+  { return m_hasBLines;}
+
   inline int MMReadoutElement::surfaceHash( const Identifier& id ) const {
     return surfaceHash(manager()->mmIdHelper()->gasGap(id),0);
   }