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data.h

Go to the documentation of this file.

#ifndef DATA_H 
#define DATA_H


#include <stdio.h>
#include <string>
using std::string;


#define MB_TO_DATASET_THRES(x) ((x) << 19)
#define DATASET_TO_MB(x) ((x) >> 19)


struct gradient_t {
        float x,y,z;
};

gradient_t operator * (gradient_t g, float s);
gradient_t operator + (gradient_t g1, gradient_t g2);

// data class
class Data {
private:
        //the filesize in MB when there will be a parted fread
        int m_FileThreshold;
        //the size in MB of the packets read with fread
        int m_DataPackets;

        short xDim, yDim, zDim;
        int xyDim;
        int size;
        short *data;
        gradient_t *gradients;
        bool CalcDensityHistogram();
        int histogram[4096];
        bool precalc;
        bool CalcGradients();
public:
        Data() { xDim = 0;
                        yDim = 0;
                        zDim = 0;
                        xyDim = 0;
                        size = 0;
                        data = NULL;
                        gradients = NULL;
                        precalc = false;
                        m_FileThreshold = 40;
                        m_DataPackets = MB_TO_DATASET_THRES(10);
        };

        ~Data() { if(data!= NULL)delete data; if(gradients != NULL)delete gradients;};
        bool SetPreCalc(bool pc) { precalc = pc; return true;}
        void SetFileThreshold(int dFileThreshold) { m_FileThreshold = dFileThreshold; };
        void SetDataPackets(int dDataPack) { m_DataPackets = MB_TO_DATASET_THRES(dDataPack); };
        short GetXDim();
        short GetYDim();
        short GetZDim();
        int GetHistogram(int density);
        int GetDensity(int x, int y, int z);
        void LoadData(char* fname);
        gradient_t CalcGrad(int x, int y, int z);
        

        string filename;
};

#endif

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