Initialize at openlb-1-3

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diff --git a/src/functors/lattice/blockBaseF2D.h b/src/functors/lattice/blockBaseF2D.h
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+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2013 Albert Mink, Lukas Baron, Mathias J. Krause
+ *  E-mail contact: info@openlb.net
+ *  The most recent release of OpenLB can be downloaded at
+ *  <http://www.openlb.net/>
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public
+ *  License along with this program; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+
+#ifndef BLOCK_BASE_F_2D_H
+#define BLOCK_BASE_F_2D_H
+
+#include "functors/genericF.h"
+#include "core/blockStructure2D.h"
+#include "core/blockData2D.h"
+#include "core/blockLatticeStructure2D.h"
+#include "core/unitConverter.h"
+
+#include <fstream>
+#include <memory>
+
+/** Note: Throughout the whole source code directory genericFunctions, the
+ *  template parameters for i/o dimensions are:
+ *           F: S^m -> T^n  (S=source, T=target)
+ */
+
+namespace olb {
+
+/// represents all functors that operate on a cuboid in general, mother class of BlockLatticeF, ..
+template <typename T>
+class BlockF2D : public GenericF<T,int> {
+protected:
+  BlockF2D(BlockStructure2D& blockStructure, int targetDim);
+  BlockF2D(int targetDim);
+  BlockStructure2D* _blockStructure;
+public:
+  // virtual due to BlockReduction2D1D
+  virtual BlockStructure2D& getBlockStructure();
+  void setBlockStructure(BlockStructure2D* blockStructure);
+
+  // not used anymore? blockData2D computes min/max as well
+  /// computes min/maxValue of blockStructure, [iDim]
+  //  std::vector<T> getMinValue();
+  //  std::vector<T> getMaxValue();
+
+  BlockF2D<T>& operator-(BlockF2D<T>& rhs);
+  BlockF2D<T>& operator+(BlockF2D<T>& rhs);
+  BlockF2D<T>& operator*(BlockF2D<T>& rhs);
+  BlockF2D<T>& operator/(BlockF2D<T>& rhs);
+};
+
+/// BlockDataF2D can store data of any BlockF2D
+template <typename T,typename BaseType>
+class BlockDataF2D : public BlockF2D<T> {
+protected:
+  /// used for BlockReduction2D1D to build BlockData2D by the constructor
+  BlockDataF2D(int nx, int ny, int size=1);
+
+  std::unique_ptr<BlockData2D<T,BaseType>> _blockDataStorage;
+  BlockData2D<T,BaseType>&                 _blockData;
+public:
+  BlockDataF2D(BlockData2D<T,BaseType>& blockData);
+  /// to store functor data, constuctor creates _blockData with functor data
+  BlockDataF2D(BlockF2D<BaseType>& f);
+  /// returns _blockData
+  BlockData2D<T,BaseType>& getBlockData();
+  /// access to _blockData via its get()
+  bool operator() (T output[], const int input[]) override;
+};
+
+/// Overlap-aware version of BlockDataF2D for usage in SuperDataF2D
+template <typename T, typename BaseType>
+class BlockDataViewF2D : public BlockDataF2D<T,BaseType> {
+private:
+  const int _overlap;
+public:
+  BlockDataViewF2D(BlockData2D<T,BaseType>& blockData, int overlap);
+  /// access to _blockData shifted by overlap
+  bool operator() (T output[], const int input[]) override;
+};
+
+/// identity functor
+template <typename T>
+class BlockIdentity2D final : public BlockF2D<T> {
+protected:
+  BlockF2D<T>& _f;
+public:
+  BlockIdentity2D(BlockF2D<T>& f);
+  // access operator should not delete f, since f still has the identity as child
+  bool operator() (T output[], const int input[]) override;
+};
+
+/// represents all functors that operate on a DESCRIPTOR in general, e.g. getVelocity(), getForce(), getPressure()
+template <typename T, typename DESCRIPTOR>
+class BlockLatticeF2D : public BlockF2D<T> {
+protected:
+  BlockLatticeF2D(BlockLatticeStructure2D<T,DESCRIPTOR>& blockLattice, int targetDim);
+  BlockLatticeStructure2D<T,DESCRIPTOR>& _blockLattice;
+public:
+  BlockLatticeStructure2D<T,DESCRIPTOR>& getBlockLattice();
+};
+
+/// represents all functors that operate on a DESCRIPTOR with output in Phys, e.g. physVelocity(), physForce(), physPressure()
+template <typename T, typename DESCRIPTOR>
+class BlockLatticePhysF2D : public BlockLatticeF2D<T,DESCRIPTOR> {
+protected:
+  BlockLatticePhysF2D(BlockLatticeStructure2D<T,DESCRIPTOR>& blockLattice,
+                      const UnitConverter<T,DESCRIPTOR>& converter, int targetDim);
+  const UnitConverter<T,DESCRIPTOR>& _converter;
+};
+
+
+/// represents all thermal functors that operate on a DESCRIPTOR with output in Phys, e.g. physTemperature(), physHeatFlux()
+template <typename T, typename DESCRIPTOR, typename TDESCRIPTOR>
+class BlockLatticeThermalPhysF2D : public BlockLatticeF2D<T,TDESCRIPTOR> {
+protected:
+  BlockLatticeThermalPhysF2D(BlockLatticeStructure2D<T,TDESCRIPTOR>& blockLattice,
+                             const ThermalUnitConverter<T,DESCRIPTOR,TDESCRIPTOR>& converter, int targetDim);
+  const ThermalUnitConverter<T,DESCRIPTOR,TDESCRIPTOR>& _converter;
+};
+
+
+} // end namespace olb
+
+#endif