/* histogram/file2d.c

 * 

 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough

 * 

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or (at

 * your option) any later version.

 * 

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 */

#include <config.h>

#include <stdio.h>

#include <gsl/gsl_errno.h>

#include <gsl/gsl_block.h>

#include <gsl/gsl_histogram2d.h>

int

gsl_histogram2d_fread (FILE * stream, gsl_histogram2d * h)

{

  int status = gsl_block_raw_fread (stream, h->xrange, h->nx + 1, 1);

  if (status)

    return status;

  status = gsl_block_raw_fread (stream, h->yrange, h->ny + 1, 1);

  if (status)

    return status;

  status = gsl_block_raw_fread (stream, h->bin, h->nx * h->ny, 1);

  return status;

}

int

gsl_histogram2d_fwrite (FILE * stream, const gsl_histogram2d * h)

{

  int status = gsl_block_raw_fwrite (stream, h->xrange, h->nx + 1, 1);

  if (status)

    return status;

  status = gsl_block_raw_fwrite (stream, h->yrange, h->ny + 1, 1);

  if (status)

    return status;

  status = gsl_block_raw_fwrite (stream, h->bin, h->nx * h->ny, 1);

  return status;

}

int

gsl_histogram2d_fprintf (FILE * stream, const gsl_histogram2d * h,

                         const char *range_format, const char *bin_format)

{

  size_t i, j;

  const size_t nx = h->nx;

  const size_t ny = h->ny;

  int status;

  for (i = 0; i < nx; i++)

    {

      for (j = 0; j < ny; j++)

        {

          status = fprintf (stream, range_format, h->xrange[i]);

          if (status < 0)

            {

              GSL_ERROR ("fprintf failed", GSL_EFAILED);

            }

          status = putc (' ', stream);

          if (status == EOF)

            {

              GSL_ERROR ("putc failed", GSL_EFAILED);

            }

          status = fprintf (stream, range_format, h->xrange[i + 1]);

          if (status < 0)

            {

              GSL_ERROR ("fprintf failed", GSL_EFAILED);

            }

          status = putc (' ', stream);

          if (status == EOF)

            {

              GSL_ERROR ("putc failed", GSL_EFAILED);

            }

          status = fprintf (stream, range_format, h->yrange[j]);

          if (status < 0)

            {

              GSL_ERROR ("fprintf failed", GSL_EFAILED);

            }

          status = putc (' ', stream);

          if (status == EOF)

            {

              GSL_ERROR ("putc failed", GSL_EFAILED);

            }

          status = fprintf (stream, range_format, h->yrange[j + 1]);

          if (status < 0)

            {

              GSL_ERROR ("fprintf failed", GSL_EFAILED);

            }

          status = putc (' ', stream);

          if (status == EOF)

            {

              GSL_ERROR ("putc failed", GSL_EFAILED);

            }

          status = fprintf (stream, bin_format, h->bin[i * ny + j]);

          if (status < 0)

            {

              GSL_ERROR ("fprintf failed", GSL_EFAILED);

            }

          status = putc ('\n', stream);

          if (status == EOF)

            {

              GSL_ERROR ("putc failed", GSL_EFAILED);

            }

        }

      status = putc ('\n', stream);

      if (status == EOF)

        {

          GSL_ERROR ("putc failed", GSL_EFAILED);

        }

    }

  return GSL_SUCCESS;

}

int

gsl_histogram2d_fscanf (FILE * stream, gsl_histogram2d * h)

{

  size_t i, j;

  const size_t nx = h->nx;

  const size_t ny = h->ny;

  double xupper, yupper;

  for (i = 0; i < nx; i++)

    {

      for (j = 0; j < ny; j++)

        {

          int status = fscanf (stream,

                               "%lg %lg %lg %lg %lg",

                               h->xrange + i, &xupper,

                               h->yrange + j, &yupper,

                               h->bin + i * ny + j);

          if (status != 5)

            {

              GSL_ERROR ("fscanf failed", GSL_EFAILED);

            }

        }

      h->yrange[ny] = yupper;

    }

  h->xrange[nx] = xupper;

  return GSL_SUCCESS;

}