grmDataStructures.h

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/*=========================================================================
 
  Program: Generic Region Merging Library
  Language: C++
  author: Lassalle Pierre
  contact: lassallepierre34@gmail.com
 
 
 
  Copyright (c) Centre National d'Etudes Spatiales. All rights reserved
 
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
 
=========================================================================*/
#ifndef GRM_DATA_STRUCTURES_H
#define GRM_DATA_STRUCTURES_H
#include <stdexcept>
#include <bitset>
#include <vector>
#include <algorithm>
 
namespace grm
{ 
 
  struct BoundingBox
  {
    /* X coordinate of the upper left. */
    long unsigned int m_UX;
    
    /* Y coordinate of the upper left. */
    long unsigned int m_UY;
    
    /* Width */
    unsigned int m_W;
 
    /* Height */
    unsigned int m_H; 
  };
  
  BoundingBox MergeBoundingBoxes(const BoundingBox& bb1,
                   const BoundingBox& bb2)
  {
    long unsigned int min_ux, min_uy, max_xw, max_yh;
    BoundingBox bb;
 
    min_ux = std::min(bb1.m_UX, bb2.m_UX);
    min_uy = std::min(bb1.m_UY, bb2.m_UY);
    max_xw = std::max(bb1.m_UX + bb1.m_W, bb2.m_UX + bb2.m_W);
    max_yh = std::max(bb1.m_UY + bb1.m_H, bb2.m_UY + bb2.m_H);
 
    bb.m_UX = min_ux;
    bb.m_UY = min_uy;
    bb.m_W = max_xw - min_ux;
    bb.m_H = max_yh - min_uy;
 
    return bb;
  }
  
} // end of namespace grm
 
#endif