Cache lattice positions for grid coupling

1 files changed, 7 insertions, 5 deletions

diff --git a/src/refinement/coupler2D.h b/src/refinement/coupler2D.h
index b218eff..e911575 100644
--- a/src/refinement/coupler2D.h
+++ b/src/refinement/coupler2D.h
@@ -39,12 +39,14 @@ protected:
   const int  _fineSize;
   const bool _vertical;
 
-  Vector<T,2>   _physOrigin;
-  Vector<int,3> _coarseOrigin;
-  Vector<int,3> _fineOrigin;
+  Vector<T,2> _physOrigin;
 
-  Vector<int,3> getFineLatticeR(int y) const;
-  Vector<int,3> getCoarseLatticeR(int y) const;
+  const Vector<int,3>& getFineLatticeR(int y) const;
+  const Vector<int,3>& getCoarseLatticeR(int y) const;
+
+private:
+  std::vector<Vector<int,3>> _coarseLatticeR;
+  std::vector<Vector<int,3>> _fineLatticeR;
 
 public:
   Coupler2D(Grid2D<T,DESCRIPTOR>& coarse, Grid2D<T,DESCRIPTOR>& fine,