include/shape/graphic.hpp

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/*****************************************************************************
 * M a t h e m a g i x
 *****************************************************************************
 * Graphic
 * Bernard Mourrain
 *****************************************************************************
 *               Copyright (C) 2009 INRIA Sophia-Antipolis
 *****************************************************************************
 * Comments :
 ****************************************************************************/
# ifndef shape_graphic_hpp
# define shape_graphic_hpp

# include <list>
# include <realroot/Seq.hpp>
# include <shape/shape.hpp>
# include <shape/fxv.hpp>

# define TMPL  template<class C, class V>
# define SELF  graphic<C,V>
# define Shape geometric<V>

namespace mmx {
namespace shape {


template<class C, class V=default_env>
struct graphic : public Shape
{
    unsigned type;
    enum { E_TRIANGLE, E_QUAD, E_UNSTRUCT };
    Seq<C>     vertices;
    Seq<C>     normals ; // can be zero
    Seq<int>   edges;
    Seq<int>   faces;
    unsigned   m_nbf;
    Seq<float> colors;

public:
    graphic(void){};
    graphic( int nbv, int nbe, int nbf, bool hasnormal = false, bool hascolor = false, int type = E_TRIANGLE ) ;
    unsigned nbv() const {return vertices.size()/3;}
    unsigned nbe() const {return edges.size()/2;}
    unsigned nbf() const {return m_nbf;}

    C   vertex_coord (unsigned i) const {return vertices[i];}
    int edge_index   (unsigned i) const {return edges[i];}
    int face_index   (unsigned i) const {return faces[i];}

    virtual ~graphic(void);
} ;

TMPL
SELF::graphic(int nbv, int nbe, int nbf, bool hasnormal, bool hascolor, int type) {
    this->type = type;
    this->vertices.resize(3*nbv);
    this->edges.resize(2*nbe);
    if (type == E_QUAD) this->faces.resize(4*nbf); else this->faces.resize(3*nbf);
    if ( hasnormal ) this->normals.resize(3*nbv);
    if ( hascolor ) this->colors.resize(3*nbv);
}
TMPL
SELF::~graphic() {
//    if ( vertices ) delete[] vertices;
//    if ( normals  ) delete[] normals;
//    if ( edges ) delete[] edges;
//    if ( faces ) delete[] faces;
//    if ( colors )  delete[] colors;
}

//--------------------------------------------------------------------


} ; // namespace shape
} ; // namespace mmx
//====================================================================
# undef TMPL
# undef SELF
# undef Shape
# undef Viewer
# endif // shape_graphic_hpp

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