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diff --git a/src/functors/lattice/indicator/superIndicatorBaseF2D.h b/src/functors/lattice/indicator/superIndicatorBaseF2D.h
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+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2017 Adrian Kummerlaender
+ *  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 SUPER_INDICATOR_BASE_F_2D_H
+#define SUPER_INDICATOR_BASE_F_2D_H
+
+#include "functors/genericF.h"
+#include "functors/lattice/superBaseF2D.h"
+#include "communication/superStructure2D.h"
+#include "core/superData2D.h"
+#include "blockIndicatorBaseF2D.h"
+
+namespace olb {
+
+template<typename T, typename W> class SuperF2D;
+template<typename T> class SuperGeometry2D;
+template<typename T> class SuperIndicatorIdentity2D;
+
+template <typename T>
+class SuperIndicatorF2D : public SuperF2D<T,bool> {
+protected:
+  SuperGeometry2D<T>& _superGeometry;
+
+  std::unique_ptr<SuperData2D<T,bool>> _cachedData;
+  std::vector<std::unique_ptr<BlockIndicatorF2D<T>>> _extendedBlockF;
+public:
+  using SuperF2D<T,bool>::operator();
+  using identity_functor_type = SuperIndicatorIdentity2D<T>;
+
+  SuperIndicatorF2D(SuperGeometry2D<T>& geometry);
+  /**
+   * Get block indicator
+   *
+   * \returns _blockF[iCloc] cast as BlockIndicatorF2D<T>&
+   **/
+  BlockIndicatorF2D<T>& getBlockIndicatorF(int iCloc);
+  /**
+   * Get extended block indicator
+   *
+   * \returns _extendedBlockF[iCloc] cast as BlockIndicatorF2D<T>&
+   **/
+  BlockIndicatorF2D<T>& getExtendedBlockIndicatorF(int iCloc);
+  /**
+   * Get underlying super geometry
+   *
+   * \returns _superGeometry
+   **/
+  SuperGeometry2D<T>& getSuperGeometry();
+  /**
+   * Indicator specific function operator overload
+   *
+   * The boolean return value of `operator()(T output[], S input[])` describes
+   * the call's success and by convention must not describe the indicated domain.
+   *
+   * \return Domain indicator i.e. `true` iff the input lies within the described domain.
+   **/
+  bool operator() (const int input[]);
+  /**
+   * Indicator specific function operator overload
+   *
+   * The boolean return value of `operator()(T output[], S input[])` describes
+   * the call's success and by convention must not describe the indicated domain.
+   *
+   * \return Domain indicator i.e. `true` iff the input lies within the described domain.
+   **/
+  bool operator() (int iC, int iX, int iY);
+
+  /// Optional: initialize _cachedData for faster access
+  void cache();
+};
+
+
+} // namespace olb
+
+#endif