src/libengrid/foamobject.cpp

   1 //
   2 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   3 // +                                                                      +
   4 // + This file is part of enGrid.                                         +
   5 // +                                                                      +
   6 // + Copyright 2008-2013 enGits GmbH                                      +
   7 // +                                                                      +
   8 // + enGrid is free software: you can redistribute it and/or modify       +
   9 // + it under the terms of the GNU General Public License as published by +
  10 // + the Free Software Foundation, either version 3 of the License, or    +
  11 // + (at your option) any later version.                                  +
  12 // +                                                                      +
  13 // + enGrid is distributed in the hope that it will be useful,            +
  14 // + but WITHOUT ANY WARRANTY; without even the implied warranty of       +
  15 // + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        +
  16 // + GNU General Public License for more details.                         +
  17 // +                                                                      +
  18 // + You should have received a copy of the GNU General Public License    +
  19 // + along with enGrid. If not, see <http://www.gnu.org/licenses/>.       +
  20 // +                                                                      +
  21 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  22 //
  23
  24 #include "foamobject.h"
  25 #include <iostream>
  26
  27 #include "guimainwindow.h"
  28
  29 FoamObject::FoamObject()
  30 {
  31   m_CaseDir = "";
  32   m_BufferedFileName = "";
  33 }
  34
  35 int FoamObject::deleteBetween(int i, QString str1, QString str2)
  36 {
  37   int i1 = m_Buffer.indexOf(str1, i);
  38   if (i1 != -1) {
  39     int i2 = m_Buffer.indexOf(str2, i1);
  40     if (i2 != -1) {
  41       m_Buffer = m_Buffer.remove(i1, i2 - i1 + str2.size());
  42       return i2-i1;
  43     }
  44   }
  45   return 0;
  46 }
  47
  48 void FoamObject::stripBuffer()
  49 {
  50   while (deleteBetween(0, "/*", "*/")) {};
  51   while (deleteBetween(0, "//", "\n")) {};
  52   int i = m_Buffer.indexOf("FoamFile", 0);
  53   if (i != -1) {
  54     deleteBetween(i, "{", "}");
  55   }
  56   m_Buffer.replace("FoamFile","");
  57   m_Buffer.replace("{", " ");
  58   m_Buffer.replace("}", " ");
  59   m_Buffer.replace("(", " ");
  60   m_Buffer.replace(")", " ");
  61   m_Buffer.replace(";", " ");
  62   m_Buffer = m_Buffer.simplified();
  63 }
  64
  65 void FoamObject::readFile(QString file_name)
  66 {
  67   file_name = m_CaseDir + "/" + file_name;
  68   if(m_BufferedFileName != m_CaseDir + "/" + file_name) {
  69     m_BufferedFileName = file_name;
  70     QFile file(file_name);
  71     if (!file.open(QIODevice::ReadOnly)) {
  72       EG_ERR_RETURN(QString("error loading file:\n") + file_name);
  73     }
  74     QTextStream f(&file);
  75     m_Buffer = "";
  76     m_Buffer.reserve(file.size());
  77     while(!f.atEnd())
  78     {
  79       m_Buffer += f.readLine() + "\n";
  80     }
  81     stripBuffer();
  82   }
  83 }
  84
  85 void FoamObject::buildMaps()
  86 {
  87   int num_foam_nodes;
  88   readFile("constant/polyMesh/points");
  89   {
  90     QTextStream f(getBuffer());
  91     f >> num_foam_nodes;
  92   }
  93   {
  94     readFile("constant/polyMesh/neighbour");
  95     QTextStream f(getBuffer());
  96     int num_neigh;
  97     f >> num_neigh;
  98     int neigh = 0;
  99     m_FirstBoundaryFace = 0;
 100     while (m_FirstBoundaryFace < num_neigh) {
 101       f >> neigh;
 102       if (neigh == -1) {
 103         break;
 104       }
 105       ++m_FirstBoundaryFace;
 106     }
 107   }
 108
 109   m_VolToSurfMap.fill(-1, num_foam_nodes);
 110   readFile("constant/polyMesh/faces");
 111   int num_surf_nodes = 0;
 112   int max_node = 0;
 113   {
 114     int num_foam_faces;
 115     QTextStream f(getBuffer());
 116     f >> num_foam_faces;
 117     for (int i = 0; i < num_foam_faces; ++i) {
 118       int num_nodes;
 119       f >> num_nodes;
 120       for (int j = 0; j < num_nodes; ++j) {
 121         int node;
 122         f >> node;
 123         max_node = max(node, max_node);
 124         if (i >= m_FirstBoundaryFace) {
 125           if (m_VolToSurfMap[node] == -1) {
 126             m_VolToSurfMap[node] = num_surf_nodes;
 127             ++num_surf_nodes;
 128           }
 129         }
 130       }
 131     }
 132   }
 133   m_SurfToVolMap.fill(-1, num_surf_nodes);
 134   for (int i = 0; i < m_VolToSurfMap.size(); ++i) {
 135     if (m_VolToSurfMap[i] != -1) {
 136       if (m_VolToSurfMap[i] > m_SurfToVolMap.size()) {
 137         EG_BUG;
 138       }
 139       m_SurfToVolMap[m_VolToSurfMap[i]] = i;
 140     }
 141   }
 142   for (int i = 0; i < m_SurfToVolMap.size(); ++i) {
 143     if (m_SurfToVolMap[i] == -1) {
 144       EG_BUG;
 145     }
 146   }
 147 }
 148
 149 void FoamObject::setCaseDir(QString case_dir)
 150 {
 151   m_CaseDir = case_dir;
 152   GuiMainWindow::pointer()->setXmlSection("openfoam/CaseDir",m_CaseDir);
 153 }