---

Element.h

Go to the documentation of this file.

/*
    TEDDY - General graphics application library
    Copyright (C) 1999-2002  Timo Suoranta
    tksuoran@cc.helsinki.fi

    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

    $Id: Element.h,v 1.7 2002/02/16 12:41:39 tksuoran Exp $
*/


#ifndef TEDDY__MODELS__ELEMENT__H
#define TEDDY__MODELS__ELEMENT__H


#include "Teddy/Maths/Vector.h"
#include "Teddy/SysSupport/StdList.h"
#include "Teddy/MixIn/Options.h"
#if defined( TEDDY_INCLUDE_COLDET )
# include "Teddy/ColDet/ColDet.h"
#endif
#if 0
# include "Teddy/Bsp/CSG_BooleanOps.h"
#endif


//  Forward declarations
namespace Teddy {
    namespace Maths              { class Matrix;     };
    namespace PhysicalComponents { class Projection; };
};
using namespace Teddy::Maths;
using namespace Teddy::PhysicalComponents;
using namespace Teddy::MixIn;


namespace Teddy  {
namespace Models {


class  Vertex;
class  GeometryIterator;


class Element : public Options {
public:
    static const unsigned long EL_HAS_ELEMENT_NORMAL;
    static const unsigned long EL_USE_ELEMENT_NORMAL;
    static const unsigned long EL_USE_VERTEX_NORMALS;

    static const unsigned long VX_HAS_PARENT;        
    static const unsigned long VX_HAS_VERTEX;        
    static const unsigned long VX_HAS_NORMAL;        
    static const unsigned long VX_HAS_COLOR;         
    static const unsigned long VX_HAS_TEXTURE;       

    static const unsigned long VX_USE_THIS_VERTEX;   
    static const unsigned long VX_USE_THIS_NORMAL;   
    static const unsigned long VX_USE_THIS_COLOR;    
    static const unsigned long VX_USE_THIS_TEXTURE;  

    static const unsigned long VX_USE_PARENT_VERTEX; 
    static const unsigned long VX_USE_PARENT_NORMAL; 
    static const unsigned long VX_USE_PARENT_COLOR;  
    static const unsigned long VX_USE_PARENT_TEXTURE;
     
    static const unsigned long VX_TRAVERSAL_VISITED; 

    static const unsigned long VX_USE_PARENT_ALL;

public:
    Element( unsigned long options = 0 );
    virtual ~Element();

    virtual void        draw        ( Projection *p ) = 0;
    virtual void        debug       ();

    virtual void        add         ( const float x, const float y, const float z );
    virtual void        add         ( Vertex *v );
    virtual void        append      ( const float x, const float y, const float z );
    virtual void        append      ( Vertex *v );
    virtual void        reverse     ();
    virtual bool        contains    ( const Vertex *v ) const;

    virtual void        makeNormal  ();
    virtual void        makeConvexNormal();

    virtual void        smooth      ( float max_smoothing_angle );

    void                setNormal   ( const Vector &normal );
    void                setNormal   ( const float x, const float y, const float z );
    const Vector       &getNormal   () const;
    virtual double      getMaxVector() const;

    void                clearTraversal     ();
    virtual void        transformVertices  ( const Matrix &m, const Matrix &normal_matrix, const bool reverse );

#if defined( TEDDY_INCLUDE_COLDET )
    virtual int         addToCollisionModel( Teddy::ColDet::CollisionModel3D *collision_model );
#endif
    //  virtual GtsSurface *makeSurface        (){ return NULL; }

    //  CSG
#if 0
    virtual unsigned long countCSGFaceElements  ();
    virtual unsigned long countCSGVertexElements();
    virtual void          initCSGFace           ( GeometryIterator *gi );
    virtual bool          stepCSGFace           ( GeometryIterator *gi );  //  = 0
    virtual void          fillCSGFace           ( GeometryIterator *gi, CSG_IFace *face );  // = 0
    virtual void          initCSGVertex         ( GeometryIterator *gi );
    virtual bool          stepCSGVertex         ( GeometryIterator *gi );
    virtual void          fillCSGVertex         ( GeometryIterator *gi, CSG_IVertex *vertex );
#endif

    //  vertices -member is public for easy access from Model texture coordinate code
    public:    list<Vertex*> vertices;
    protected: Vector        normal;
};


};  //  namespace Models
};  //  namespace Teddy


#endif  //  TEDDY__MODELS__ELEMENT__H