From 94d3e79a8617f88dc0219cfdeedfa3147833719d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 24 Jun 2019 14:43:36 +0200
Subject: Initialize at openlb-1-3

---
 src/functors/lattice/blockGeometryFaces3D.hh | 97 ++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 src/functors/lattice/blockGeometryFaces3D.hh

(limited to 'src/functors/lattice/blockGeometryFaces3D.hh')

diff --git a/src/functors/lattice/blockGeometryFaces3D.hh b/src/functors/lattice/blockGeometryFaces3D.hh
new file mode 100644
index 0000000..fe10468
--- /dev/null
+++ b/src/functors/lattice/blockGeometryFaces3D.hh
@@ -0,0 +1,97 @@
+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2013-2018 Mathias Krause, Albert Mink, 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 BLOCK_GEOMETRY_FACES_3D_HH
+#define BLOCK_GEOMETRY_FACES_3D_HH
+
+#include "blockGeometryFaces3D.h"
+
+namespace olb {
+
+
+template <typename T>
+BlockGeometryFaces3D<T>::BlockGeometryFaces3D(BlockIndicatorF3D<T>& indicatorF, T latticeL)
+  : BlockF3D<T>(indicatorF.getBlockStructure(), 7),
+    _indicatorF(indicatorF),
+    _latticeL(latticeL)
+{
+  this->getName() = "blockGeometryFaces";
+}
+
+template <typename T>
+bool BlockGeometryFaces3D<T>::operator() (T output[], const int input[])
+{
+  for (int i=0; i<7; ++i) {
+    output[i] = T();
+  }
+
+  std::size_t counter[7] = {0};
+
+  if (!_indicatorF.isEmpty()) {
+    auto& blockGeometry = _indicatorF.getBlockGeometryStructure();
+    const Vector<int,3> min = _indicatorF.getMin();
+    const Vector<int,3> max = _indicatorF.getMax();
+
+    // Iterate over all cells and count the cells of the face
+    for (int iX = min[0]; iX <= max[0]; ++iX) {
+      for (int iY = min[1]; iY <= max[1]; ++iY) {
+        for (int iZ = min[2]; iZ <= max[2]; ++iZ) {
+          // Lock at solid nodes only
+          if (_indicatorF(iX, iY, iZ)) {
+            if (blockGeometry.getMaterial(iX-1, iY, iZ) == 1) {
+              counter[0]++;
+            }
+            if (blockGeometry.getMaterial(iX, iY-1, iZ) == 1) {
+              counter[1]++;
+            }
+            if (blockGeometry.getMaterial(iX, iY, iZ-1) == 1) {
+              counter[2]++;
+            }
+            if (blockGeometry.getMaterial(iX+1, iY, iZ) == 1) {
+              counter[3]++;
+            }
+            if (blockGeometry.getMaterial(iX, iY+1, iZ) == 1) {
+              counter[4]++;
+            }
+            if (blockGeometry.getMaterial(iX, iY, iZ+1) == 1) {
+              counter[5]++;
+            }
+          }
+        }
+      }
+    }
+
+    const T dx2 = _latticeL*_latticeL;
+    for (int i=0; i<6; ++i) {
+      output[i]  = (T) counter[i] * dx2;
+      output[6] += (T) counter[i] * dx2;
+    }
+  }
+
+  return true;
+}
+
+
+}
+
+#endif
-- 
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