src/foamobject.cpp

   1 //
   2 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   3 // +                                                                      +
   4 // + This file is part of enGrid.                                         +
   5 // +                                                                      +
   6 // + Copyright 2008,2009 Oliver Gloth                                     +
   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 }
  33
  34 int FoamObject::deleteBetween(int i, QString str1, QString str2)
  35 {
  36   int i1 = m_Buffer.indexOf(str1, i);
  37   if (i1 != -1) {
  38     int i2 = m_Buffer.indexOf(str2, i1);
  39     if (i2 != -1) {
  40       m_Buffer = m_Buffer.remove(i1, i2 - i1 + str2.size());
  41       return i2-i1;
  42     }
  43   }
  44   return 0;
  45 }
  46
  47 void FoamObject::stripBuffer()
  48 {
  49   while (deleteBetween(0, "/*", "*/")) {};
  50   while (deleteBetween(0, "//", "\n")) {};
  51   int i = m_Buffer.indexOf("FoamFile", 0);
  52   if (i != -1) {
  53     deleteBetween(i, "{", "}");
  54   }
  55   m_Buffer.remove("FoamFile");
  56   m_Buffer = m_Buffer.replace("{", " ");
  57   m_Buffer = m_Buffer.replace("}", " ");
  58   m_Buffer = m_Buffer.replace("(", " ");
  59   m_Buffer = m_Buffer.replace(")", " ");
  60   m_Buffer = m_Buffer.replace(";", " ");
  61   m_Buffer = m_Buffer.simplified();
  62 }
  63
  64 void FoamObject::readFile(QString file_name)
  65 {
  66   file_name = m_CaseDir + "/" + file_name;
  67   QFile file(file_name);
  68   if (!file.open(QIODevice::ReadOnly)) {
  69     EG_ERR_RETURN(QString("error loading file:\n") + file_name);
  70   }
  71   QTextStream f(&file);
  72   m_Buffer = f.readAll();
  73   stripBuffer();
  74 }
  75
  76 void FoamObject::buildMaps()
  77 {
  78   int num_foam_nodes;
  79   readFile("constant/polyMesh/points");
  80   {
  81     QTextStream f(getBuffer());
  82     f >> num_foam_nodes;
  83   }
  84   {
  85     readFile("constant/polyMesh/neighbour");
  86     QTextStream f(getBuffer());
  87     int num_neigh;
  88     f >> num_neigh;
  89     int neigh = 0;
  90     m_FirstBoundaryFace = 0;
  91     while (m_FirstBoundaryFace < num_neigh) {
  92       f >> neigh;
  93       if (neigh == -1) {
  94         break;
  95       }
  96       ++m_FirstBoundaryFace;
  97     }
  98   }
  99
 100   m_VolToSurfMap.fill(-1, num_foam_nodes);
 101   readFile("constant/polyMesh/faces");
 102   int num_surf_nodes = 0;
 103   int max_node = 0;
 104   {
 105     int num_foam_faces;
 106     QTextStream f(getBuffer());
 107     f >> num_foam_faces;
 108     for (int i = 0; i < num_foam_faces; ++i) {
 109       int num_nodes;
 110       f >> num_nodes;
 111       for (int j = 0; j < num_nodes; ++j) {
 112         int node;
 113         f >> node;
 114         max_node = max(node, max_node);
 115         if (i >= m_FirstBoundaryFace) {
 116           if (m_VolToSurfMap[node] == -1) {
 117             m_VolToSurfMap[node] = num_surf_nodes;
 118             ++num_surf_nodes;
 119           }
 120         }
 121       }
 122     }
 123   }
 124   m_SurfToVolMap.fill(-1, num_surf_nodes);
 125   for (int i = 0; i < m_VolToSurfMap.size(); ++i) {
 126     if (m_VolToSurfMap[i] != -1) {
 127       if (m_VolToSurfMap[i] > m_SurfToVolMap.size()) {
 128         EG_BUG;
 129       }
 130       m_SurfToVolMap[m_VolToSurfMap[i]] = i;
 131     }
 132   }
 133   for (int i = 0; i < m_SurfToVolMap.size(); ++i) {
 134     if (m_SurfToVolMap[i] == -1) {
 135       EG_BUG;
 136     }
 137   }
 138 }
 139
 140 void FoamObject::setCaseDir(QString case_dir)
 141 {
 142   m_CaseDir = case_dir;
 143   GuiMainWindow::pointer()->setXmlSection("openfoam/CaseDir",m_CaseDir);
 144 }