Triangle.h

#ifndef _TRIANGLE_H_
#define _TRIANGLE_H_

/*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.

    author  : jh, jochen.hanff@gmx.de

    file    : Triangle.h
 
*/

#include <qstring.h>


class Vertex;



class Triangle
{

public:

 
  Triangle(const QString& id, Vertex* p1, Vertex* p2, Vertex* p3); 



  ~Triangle();


  QString get_ID() { return _id; }


  void write_XML(QTextStream& cout);
 

  QString vertex_ID(int index) {

    if(index == 0) return _p1->ID();
    if(index == 1) return _p2->ID();    
    if(index == 2) return _p3->ID();

    return "";

  }


private:

  QString _id;

  Vertex* _p1;
  Vertex* _p2;
  Vertex* _p3;

};


#endif

---