#include<config.h>
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//------------------------------------------------------------------
/*!\file
  \brief  Definitions of the AlgFixGauge class.

  $Id: alg_fix_gauge.h,v 1.3 2004/09/02 16:56:28 zs Exp $
*/
//------------------------------------------------------------------


#ifndef INCLUDED_ALG_FIX_GAUGE_H
#define INCLUDED_ALG_FIX_GAUGE_H

CPS_END_NAMESPACE
#include <util/lattice.h>
#include <alg/alg_base.h>
#include <alg/common_arg.h>
#include <alg/fix_gauge_arg.h>
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//! Performs gauge fixing.
/*!
  The gauge can be fixed to Landau gauge, in which case this is done
  at every lattice site, or to Coulomb gauge, in which case the gauge is
  fixed on hyperplanes normal to a specified direction.
  You can specify the first hyperplane, the number of hyperplanes and the
  distance between hyperplanes.

    \ingroup alg
 */
class AlgFixGauge : public Alg
{
 private:
    char *cname;

    FixGaugeArg *alg_fix_gauge_arg;
        // The argument structure for the AlgFixGauge algorithm
 

 public:
    AlgFixGauge(Lattice & latt, CommonArg *c_arg, FixGaugeArg *arg);

    virtual ~AlgFixGauge();

    //  Constructs the gauge fixing matrices.
    /*!\post The Lattice class allocates memory for the gauge fixing matrices
      which can be accessed using Lattice::FixGaugePtr.
     */
    void run(void);  

    // Frees the memory allocated for the gauge fixing matrices.
    void free(void);

};




#endif





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