Implementing tnlGridCellNeighbours.

src/implementation/mesh/CMakeLists.txt

 SET( headers tnlGrid1D_impl.h
              tnlGrid2D_impl.h
              tnlGrid3D_impl.h
+             tnlGridCellNeighbours_impl.h
              tnlTraversal_Grid1D_impl.h
              tnlTraversal_Grid2D_impl.h
              tnlTraversal_Grid3D_impl.h )

src/implementation/mesh/tnlGridCellNeighbours_impl.h

+/***************************************************************************
+                          tnlGridCellNeighbours_impl.h  -  description
+                             -------------------
+    begin                : Jul 29, 2014
+    copyright            : (C) 2014 by Tomas Oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef TNLGRIDCELLNEIGHBOURS_IMPL_H_
+#define TNLGRIDCELLNEIGHBOURS_IMPL_H_
+
+template< typename Real,
+          typename Device,
+          typename Index >
+tnlGridCellNeighbours< tnlGrid< 1, Real, Device, Index > >::
+tnlGridCellNeighbours( const GridType& grid,
+                       const CoordinatesType& cellCoordinates )
+{
+   const IndexType cellIndex = grid.getCellIndex( cellCoordinates );
+   this->xPredecessor = cellIndex - 1;
+   this->xSuccessor = cellIndex + 1;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 1, Real, Device, Index > >::
+getXPredecessor() const
+{
+   return this->xPredecessor;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 1, Real, Device, Index > >::
+getXSuccessor() const
+{
+   return this->xSuccessor;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >::
+tnlGridCellNeighbours( const GridType& grid,
+                       const CoordinatesType& cellCoordinates )
+{
+   const IndexType cellIndex = grid.getCellIndex( cellCoordinates );
+   this->xPredecessor = cellIndex - 1;
+   this->xSuccessor = cellIndex + 1;
+   this->yPredecessor = cellIndex - grid.getDimensions().x();
+   this->ySuccessor = cellIndex + grid.getDimensions().x();
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >::
+getXPredecessor() const
+{
+   return this->xPredecessor;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >::
+getXSuccessor() const
+{
+   return this->xSuccessor;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >::
+getYPredecessor() const
+{
+   return this->yPredecessor;
+}
+
+template< typename Real,
+          typename Device,
+          typename Index >
+Index
+tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >::
+getYSuccessor() const
+{
+   return this->ySuccessor;
+}
+
+
+
+
+#endif /* TNLGRIDCELLNEIGHBOURS_IMPL_H_ */

src/mesh/CMakeLists.txt

@@ -4,6 +4,7 @@ ADD_SUBDIRECTORY( traits )
 ADD_SUBDIRECTORY( topologies )
 
 SET( headers tnlGrid.h
+             tnlGridCellNeighbours.h
              tnlDummyMesh.h
              tnlGnuplotWriter.h
              tnlMesh.h

src/mesh/tnlGridCellNeighbours.h

+/***************************************************************************
+                          tnlGridCellNeighbours.h  -  description
+                             -------------------
+    begin                : Jul 29, 2014
+    copyright            : (C) 2014 by Tomas Oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef TNLGRIDCELLNEIGHBOURS_H_
+#define TNLGRIDCELLNEIGHBOURS_H_
+
+#include <mesh/tnlGrid.h>
+
+template< typename Grid >
+class tnlGridCellNeighbours{};
+
+template< typename Real,
+          typename Device,
+          typename Index >
+class tnlGridCellNeighbours< tnlGrid< 1, Real, Device, Index > >
+{
+   public:
+      typedef tnlGrid< 1, Real, Device, Index > GridType;
+      typedef Real RealType;
+      typedef Device DeviceType;
+      typedef Index IndexType;
+      typedef typename GridType::CoordinatesType CoordinatesType;
+      enum { Dimensions = GridType::Dimensions };
+
+      tnlGridCellNeighbours( const GridType& grid,
+                             const CoordinatesType& cellCoordinates );
+
+      const IndexType& getXPredecessor() const;
+
+      const IndexType& getXSuccessor() const;
+
+   protected:
+      IndexType xPredecessor, xSuccessor;
+};
+
+template< typename Real,
+          typename Device,
+          typename Index >
+class tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >
+{
+   public:
+      typedef tnlGrid< 2, Real, Device, Index > GridType;
+      typedef Real RealType;
+      typedef Device DeviceType;
+      typedef Index IndexType;
+      typedef typename GridType::CoordinatesType CoordinatesType;
+      enum { Dimensions = GridType::Dimensions };
+
+      tnlGridCellNeighbours( const GridType& grid,
+                             const CoordinatesType& cellCoordinates );
+
+      const IndexType& getXPredecessor() const;
+
+      const IndexType& getXSuccessor() const;
+
+      const IndexType& getYPredecessor() const;
+
+      const IndexType& getYSuccessor() const;
+
+
+   protected:
+      IndexType xPredecessor, xSuccessor,
+                yPredecessor, ySuccessor;
+};
+
+template< typename Real,
+          typename Device,
+          typename Index >
+class tnlGridCellNeighbours< tnlGrid< 2, Real, Device, Index > >
+{
+   public:
+      typedef tnlGrid< 2, Real, Device, Index > GridType;
+      typedef Real RealType;
+      typedef Device DeviceType;
+      typedef Index IndexType;
+      typedef typename GridType::CoordinatesType CoordinatesType;
+      enum { Dimensions = GridType::Dimensions };
+
+      tnlGridCellNeighbours( const GridType& grid,
+                             const CoordinatesType& cellCoordinates );
+
+      const IndexType& getXPredecessor() const;
+
+      const IndexType& getXSuccessor() const;
+
+      const IndexType& getYPredecessor() const;
+
+      const IndexType& getYSuccessor() const;
+
+      const IndexType& getZPredecessor() const;
+
+      const IndexType& getZSuccessor() const;
+
+   protected:
+      IndexType xPredecessor, xSuccessor,
+                yPredecessor, ySuccessor,
+                zPredecessor, zSuccessor;
+};
+
+#include <implementation/mesh/tnlGridCellNeighbours_impl.h>
+
+#endif /* TNLGRIDCELLNEIGHBOURS_H_ */