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Triangle.h

// Mesh Algorithms: a library of algorithms to manipulate 3D meshes
// Copyright (C) 2001 Tim Garthwaite and Jason Reposa

// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.

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

#ifndef TRIANGLE_H
#define TRIANGLE_H

class Triangle;

#include "options.h"
#include <string>
#include "Vertex.h"
#include "Normal.h"
#include "Color.h"
#include "Point.h"
#include <GL/gl.h>

class Triangle {
  Vertex * v[3]; 
  Color color; 
  Normal normal; 
  Point center; 
  bool replaced_before; 

  GLvoid calculateColor(Vertex * v0, Vertex * v1, Vertex * v2);

  GLvoid calculateNormal(Vertex * v0, Vertex * v1, Vertex * v2);

  GLvoid calculateCenter(Vertex * v0, Vertex * v1, Vertex * v2);

 public:


  Triangle(
    Vertex * v0, 
    Vertex * v1, 
    Vertex * v2  
  );

  Vertex * v0(); 
  Vertex * v1(); 
  Vertex * v2(); 

  GLvoid setColor(Color * c);

  Color * getColor();

  GLvoid setNormal(Normal * n);
  Normal * getNormal();

  GLvoid setCenter(Point * c);
  Point * getCenter();

  bool replaced();
  bool replace(Vertex * v1, Vertex *v2);

  std::string toString();
  bool contains(Vertex * v1);

};

#endif

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