region_xy.h

/*
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 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2010-2011, Willow Garage, Inc.
 *
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 *     notice, this list of conditions and the following disclaimer.
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 *     with the distribution.
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 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
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#pragma once
 
#include <fstream>
 
namespace pcl
{
  /** \brief Function for reading data from a stream. */
  template <class Type>
  void read (std::istream & stream, Type & value)
  {
    stream.read (reinterpret_cast<char*> (&value), sizeof(value));
  }
 
  /** \brief Function for reading data arrays from a stream. */
  template <class Type>
  void read (std::istream & stream, Type * value, int nr_values)
  {
    for (int value_index = 0; value_index < nr_values; ++value_index)
    {
      read (stream, value[value_index]);
    }
  }
 
  /** \brief Function for writing data to a stream. */
  template <class Type>
  void write (std::ostream & stream, Type value)
  {
    stream.write (reinterpret_cast<char*> (&value), sizeof (value));
  }
 
  /** \brief Function for writing data arrays to a stream. */
  template <class Type>
  void write (std::ostream & stream, Type * value, int nr_values)
  {
    for (int value_index = 0; value_index < nr_values; ++value_index)
    {
      write (stream, value[value_index]);
    }
  }
 
  /** \brief Defines a region in XY-space.
    * \author Stefan Holzer
    */
  struct PCL_EXPORTS RegionXY
  {
    /** \brief Constructor. */
    RegionXY () : x (0), y (0), width (0), height (0) {}
 
    /** \brief x-position of the region. */
    int x;
    /** \brief y-position of the region. */
    int y;
    /** \brief width of the region. */
    int width;
    /** \brief height of the region. */
    int height;
 
    /** \brief Serializes the object to the specified stream.
      * \param[out] stream the stream the object will be serialized to. */
    void
    serialize (std::ostream & stream) const
    {
      write (stream, x);
      write (stream, y);
      write (stream, width);
      write (stream, height);
    }
 
    /** \brief Deserializes the object from the specified stream.
      * \param[in] stream the stream the object will be deserialized from. */
    void 
    deserialize (::std::istream & stream)
    {
      read (stream, x);
      read (stream, y);
      read (stream, width);
      read (stream, height);
    }
 
  };
}