text: #ifndef __TRANSLATION_H__
  #define __TRANSLATION_H__
  
  #include <iostream>
  
  using namespace std;
  
  class Translation
  {
  public:
      int translationId;
      double tx, ty, tz;
  
      Translation();
      Translation(int translationId, double tx, double ty, double tz);
      friend ostream &operator<<(ostream &os, const Translation &t);
  };
  
  #endif