grid_static_obj.h

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  History

$Log: not supported by cvs2svn $
Revision 1.4  2006/09/27 08:49:32  spinelli
bug fix, add return type to Init

Revision 1.3  2006/08/23 15:20:14  marfr960
corrected minor bugs

Revision 1.2  2005/12/02 00:29:00  cignoni
updated the templates of BasicGrid

Revision 1.1  2005/07/28 08:41:00  cignoni
First working version

Revision 1.13  2005/04/14 17:23:08  ponchio
*** empty log message ***

****************************************************************************/

#ifndef __VCGLIB_UGRID_OBJ
#define __VCGLIB_UGRID_OBJ

#include <vector>
#include <algorithm>
#include <stdio.h>

#include <vcg/space/box3.h>
#include <vcg/space/line3.h>
#include <vcg/space/index/grid_util.h>
namespace vcg {
template < class ObjType, class FLT=float  >
class GridStaticObj : public BasicGrid<FLT>
{
 public:

         ObjType *grid;

         int size() const { return this->siz[0]*this->siz[1]*this->siz[2];}

         inline  GridStaticObj() { grid = 0; }
         inline ~GridStaticObj() { if(grid) delete[] grid; }
         inline void Init(const ObjType &val)
         {
                 fill(grid,grid+size(),val);
         }


         inline ObjType & Grid( const int x, const int y, const int z ) {return grid[GridIndI(Point3i(x,y,z))]; }

         // Dato un punto ritorna la cella  
         inline ObjType & Grid( const Point3<FLT> & p )                 {                               return grid[GridIndF(p)];               }

         inline int GridIndI( const Point3i & pi ) const
         {
#ifndef NDEBUG
                 if ( pi[0]<0 || pi[0]>=this->siz[0] || pi[1]<0 || pi[1]>=this->siz[1] || pi[2]<0 || pi[2]>=this->siz[2] )
                 {      assert(0);
                 return 0;
                 } 
#endif
                 return pi[0]+this->siz[0]*(pi[1]+this->siz[1]*pi[2]);
         }

         // Dato un punto ritorna l'indice della cella
   inline int GridIndF( const Point3<FLT> & p ) const { return GridIndI(this->GridP(p));        }
  
        void Create( const Point3i &_siz, const ObjType & init )
        {
                this->siz=_siz;
                this->voxel[0] = this->dim[0]/this->siz[0];
                this->voxel[1] = this->dim[1]/this->siz[1];
                this->voxel[2] = this->dim[2]/this->siz[2];

                if(grid) delete[] grid;
                int n = this->siz[0]*this->siz[1]*this->siz[2];
                grid = new ObjType[n];
    std::fill(grid,grid+n,init);
        }


        template<class FLT2>
        void Create(const Box3<FLT2> & b, int ncell, const ObjType & init, bool Inflate = true )
        {
                this->bbox.Import(b);
                if(Inflate) this->bbox.Offset(0.01*this->bbox.Diag());
                this->dim  = this->bbox.max - this->bbox.min;

                // Calcola la dimensione della griglia
                Point3i _siz;
                BestDim( ncell, this->dim, _siz );
                Create(_siz, init );
        }
};
//end class SGrid


}
#endif