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#ifndef WARPX_JFUNCTOR_H_
#define WARPX_JFUNCTOR_H_
#include "ComputeDiagFunctor.H"
#include <AMReX_BaseFwd.H>
/**
* \brief Functor to cell-center MF for current density and store result in mf_out.
*/
class
JFunctor final : public ComputeDiagFunctor
{
public:
/** Constructor.
*
* \param[in] dir direction of vector field to operate on
* \param[in] lev level of multifab. Used for averaging in rz.
* \param[in] crse_ratio for interpolating field values from the simulation MultiFab, src_mf,
to the output diagnostic MultiFab, mf_dst.
* \param[in] convertRZmodes2cartesian (in cylindrical) whether to
* sum all modes in mf_src before cell-centering into dst multifab.
* \param[in] ncomp Number of component of mf_src to cell-center in dst multifab.
*/
JFunctor (int dir, int lev,
amrex::IntVect crse_ratio,
bool convertRZmodes2cartesian=true,
bool deposit_current=false, int ncomp=1);
/** \brief Cell-center m_mf_src and write the result in mf_dst.
*
* In cylindrical geometry, by default this functor average all components
* of a MultiFab and writes into one single component.
*
* \param[out] mf_dst output MultiFab where the result is written
* \param[in] dcomp first component of mf_dst in which cell-centered
* data is stored
*/
virtual void operator()(amrex::MultiFab& mf_dst, int dcomp, int /*i_buffer=0*/) const override;
private:
/** direction of the current density to save */
const int m_dir;
/** level on which mf_src is defined */
int m_lev;
/** (for cylindrical) whether to average all modes into 1 comp */
bool m_convertRZmodes2cartesian;
/** whether to deposit current density before saving */
bool m_deposit_current;
};
#endif // WARPX_JFUNCTOR_H_
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