text: //
  //  Copyright (c) 2011-2013 Vladimir Chalupecky
  //
  //  Permission is hereby granted, free of charge, to any person obtaining a copy
  //  of this software and associated documentation files (the "Software"), to
  //  deal in the Software without restriction, including without limitation the
  //  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  //  sell copies of the Software, and to permit persons to whom the Software is
  //  furnished to do so, subject to the following conditions:
  //
  //  The above copyright notice and this permission notice shall be included in
  //  all copies or substantial portions of the Software.
  //
  //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  //  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  //  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  //  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  //  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  //  IN THE SOFTWARE.
  
  #ifndef UMESHU_POLYGON_H
  #define UMESHU_POLYGON_H
  
  #include "Point2.h"
  #include "Exceptions.h"
  
  #include <boost/geometry/geometries/polygon.hpp>
  #include <boost/geometry/io/wkt/read.hpp>
  
  #include <fstream>
  
  namespace umeshu
  {
  
  // counter-clockwise orientation
  typedef boost::geometry::model::polygon< Point2, false > Polygon;
  
  inline void read_polygon( std::string const& filename, Polygon& poly )
  {
    std::ifstream file( filename.c_str() );
  
    if ( ! file.is_open() )
    {
      BOOST_THROW_EXCEPTION( umeshu_error() );
    }
  
    std::string line;
    std::getline( file, line );
    boost::trim( line );
  
    boost::geometry::read_wkt( line, poly );
  }
  
  } // namespace umeshu
  
  #endif /* UMESHU_POLYGON_H */
  