CDensities.h

#ifndef  __CDENSITIES_H__ 
#define  __CDENSITIES_H__ 

#include <windows.h>

class CDensities 
{
public:
    CDensities()
    {
        _dimX = 0;
        _dimY = 0;
        _pDensities = 0;
    }

    ~CDensities()
    {
        Shutdown();
    }

    void Init( unsigned short dimX, unsigned short dimY)
    {
        _dimX = dimX;
        _dimY = dimY;
        _size = _dimX * _dimY;
 
        if ( _pDensities && dimX )
        {
            delete[] _pDensities;

            _pDensities = 0;
        }

                if ( !_pDensities )
                {
             _pDensities = new unsigned short [_size];
             if ( !_pDensities || !_size )
                throw;

            for ( int i = 0; i < _size; i++ )
            {   
                            _pDensities[i] = 0;
            }
        }
    
    }

    void Shutdown()
    {
        
        if ( _pDensities )
             delete[] _pDensities;

        _pDensities = 0;
        _dimX = 0;
        _dimY = 0;
        _size = 0;
    }

    BOOL IsValid()  { return ( _pDensities ) ? TRUE: FALSE; }

        unsigned short GetDimX()            { return _dimX; }
        unsigned short GetDimY()            { return _dimY; }
    unsigned short * GetDensitiesPtr()    { return _pDensities; }

    void InitDensities_XY_plain_by_Slice(int iSliceNum);
    void InitDensities_XZ_plain_by_Slice(int iSliceNum);
    void InitDensities_YZ_plain_by_Slice(int iSliceNum);

    unsigned short GetMaxValue();

private:
    unsigned short      _dimX, _dimY;   // dimension of densities array
    unsigned short  *   _pDensities;    // pointer to 2D plane of densities, generated from 3D data
        unsigned long           _size;
};

#endif /* __CDENSITIES_H__ */

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