FileManager.cc 7.23 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
/*===========================================================================*\
 *                                                                           *
 *                            OpenVolumeMesh                                 *
 *        Copyright (C) 2011 by Computer Graphics Group, RWTH Aachen         *
 *                        www.openvolumemesh.org                             *
 *                                                                           *
 *---------------------------------------------------------------------------*
 *  This file is part of OpenVolumeMesh.                                     *
 *                                                                           *
 *  OpenVolumeMesh is free software: you can redistribute it and/or modify   *
 *  it under the terms of the GNU Lesser General Public License as           *
 *  published by the Free Software Foundation, either version 3 of           *
 *  the License, or (at your option) any later version with the              *
 *  following exceptions:                                                    *
 *                                                                           *
 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
 *                                                                           *
 *  OpenVolumeMesh 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 Lesser General Public License for more details.                      *
 *                                                                           *
 *  You should have received a copy of the GNU LesserGeneral Public          *
 *  License along with OpenVolumeMesh.  If not,                              *
 *  see <http://www.gnu.org/licenses/>.                                      *
 *                                                                           *
\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision$                                                         *
 *   $Date$                   *
 *   $LastChangedBy$                                                *
 *                                                                           *
\*===========================================================================*/

#define FILEMANAGERT_CC

#include <vector>
#include <iostream>
#include <sstream>
#include <algorithm>
#include <typeinfo>

#include <OpenVolumeMesh/Geometry/VectorT.hh>
#include <OpenVolumeMesh/Mesh/PolyhedralMesh.hh>

#include "FileManager.hh"

namespace OpenVolumeMesh {

namespace IO {

//==================================================

FileManager::FileManager() {

}

//==================================================

FileManager::~FileManager() {

}

//==================================================

void FileManager::trimString(std::string& _string) const {

    // Trim Both leading and trailing spaces
    size_t start = _string.find_first_not_of(" \t\r\n");
    size_t end = _string.find_last_not_of(" \t\r\n");

    if((std::string::npos == start) || (std::string::npos == end)) {
        _string = "";
    } else {
        _string = _string.substr(start, end - start + 1);
    }
}

//==================================================

void FileManager::extractQuotedText(std::string& _string) const {

    // Trim Both leading and trailing quote marks
    size_t start = _string.find_first_of("\""); ++start;
    size_t end = _string.find_last_not_of("\"");

    if((std::string::npos == start) || (std::string::npos == end)) {
        _string = "";
    } else {
        _string = _string.substr(start, end - start + 1);
    }
}

//==================================================

bool FileManager::getCleanLine(std::istream& _ifs, std::string& _string, bool _skipEmptyLines) const {

    // While we are not at the end of the file
    while(true) {

        // Get the current line:
        std::getline(_ifs, _string);

        // Remove whitespace at beginning and end
        trimString(_string);

        // Check if string is not empty ( otherwise we continue
        if(_string.size() != 0) {

            // Check if string is a comment ( starting with # )
            if(_string[0] != '#') {
                return true;
            }

        } else {
            if(!_skipEmptyLines)
                return true;
        }

        if(_ifs.eof()) {
129 130 131
            if (verbosity_level_ >= 2) {
                std::cerr << "End of file reached while searching for input!" << std::endl;
            }
132 133 134 135 136 137 138 139 140 141 142 143 144 145
            return false;
        }
    }

    return false;
}

//==================================================

bool FileManager::isHexahedralMesh(const std::string& _filename) const {

  std::ifstream iff(_filename.c_str(), std::ios::in);

  if(!iff.good()) {
146 147 148
    if (verbosity_level_ >= 1) {
      std::cerr << "Could not open file " << _filename << " for reading!" << std::endl;
    }
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
    iff.close();
    return false;
  }

  std::string s;
  unsigned int n = 0u;

  // Skip until we find polyhedra section
  while (true || !iff.eof()) {
    iff >> s;
    if (s == "Polyhedra") {
      break;
    }
  }

  if (iff.eof()) {
    // Polyhedra section not found in file. Defaulting to polyhedral type.
    iff.close();
    return false;
  }

  // Read in number of cells
  iff >> n;
172
  if(n == 0) return false;
173 174 175 176 177 178 179 180 181 182 183 184 185 186
  unsigned int v = 0;
  char tmp[256];
  for (unsigned int i = 0; i < n; ++i) {
    iff >> v;
    iff.getline(tmp, 256);
    if (v != 6u) {
      iff.close();
      return false;
    }
  }
  iff.close();
  return true;
}

187 188 189 190 191
bool FileManager::isTetrahedralMesh(const std::string& _filename) const {

  std::ifstream iff(_filename.c_str(), std::ios::in);

  if(!iff.good()) {
192 193 194
    if (verbosity_level_ >= 1) {
      std::cerr << "Could not open file " << _filename << " for reading!" << std::endl;
    }
195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
    iff.close();
    return false;
  }

  std::string s;
  unsigned int n = 0u;

  // Skip until we find polyhedra section
  while (true || !iff.eof()) {
    iff >> s;
    if (s == "Polyhedra") {
      break;
    }
  }

  if (iff.eof()) {
    // Polyhedra section not found in file. Defaulting to polyhedral type.
    iff.close();
    return false;
  }

  // Read in number of cells
  iff >> n;
  if(n == 0) return false;
  unsigned int v = 0;
  char tmp[256];
  for (unsigned int i = 0; i < n; ++i) {
    iff >> v;
    iff.getline(tmp, 256);
    if (v != 4u) {
      iff.close();
      return false;
    }
  }
  iff.close();
  return true;
}

233 234 235 236
//==================================================

} // Namespace IO
} // Namespace OpenVolumeMesh