derivative.h

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#ifndef DERIVATIVE_H
#define DERIVATIVE_H
 
#include <blitz/array.h>
#include <blitz/array/stencil-et.h>
#include <blitz/array/stencilops.h>
 
#include "field.h"
#include "grid.h"
 
class derivative {
    private: 
        const grid &gridData;
 
        const field &F;
 
        real ihx, ihy, ihz;
        real ihx2, ihy2, ihz2;
 
        blitz::firstIndex i;
        blitz::secondIndex j;
        blitz::thirdIndex k;    
 
        blitz::Range fullRange;
        blitz::Range xRange, yRange, zRange;
 
        blitz::Array<real, 1> x_Metric, y_Metric, z_Metric;
        blitz::Array<real, 1> xxMetric, yyMetric, zzMetric;
        blitz::Array<real, 1> x2Metric, y2Metric, z2Metric;
 
        blitz::Array<real, 3> tmpArray;
 
    public:
        derivative(const grid &gridData, const field &F);
 
        void calcDerivative1_x(blitz::Array<real, 3> outArray);
        void calcDerivative1_y(blitz::Array<real, 3> outArray);
        void calcDerivative1_z(blitz::Array<real, 3> outArray);
 
        void calcDerivative2xx(blitz::Array<real, 3> outArray);
        void calcDerivative2yy(blitz::Array<real, 3> outArray);
        void calcDerivative2zz(blitz::Array<real, 3> outArray);
};
 
#endif