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/* histogram/get2d.c
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*
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* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <gsl/gsl_errno.h>
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#include <gsl/gsl_histogram2d.h>
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#include "find.c"
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double
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gsl_histogram2d_get (const gsl_histogram2d * h, const size_t i, const size_t j)
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{
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const size_t nx = h->nx;
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const size_t ny = h->ny;
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if (i >= nx)
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{
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GSL_ERROR_VAL ("index i lies outside valid range of 0 .. nx - 1",
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GSL_EDOM, 0);
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}
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if (j >= ny)
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{
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GSL_ERROR_VAL ("index j lies outside valid range of 0 .. ny - 1",
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GSL_EDOM, 0);
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}
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return h->bin[i * ny + j];
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}
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int
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gsl_histogram2d_get_xrange (const gsl_histogram2d * h, const size_t i,
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double *xlower, double *xupper)
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{
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const size_t nx = h->nx;
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if (i >= nx)
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{
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GSL_ERROR ("index i lies outside valid range of 0 .. nx - 1", GSL_EDOM);
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}
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*xlower = h->xrange[i];
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*xupper = h->xrange[i + 1];
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return GSL_SUCCESS;
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}
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int
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gsl_histogram2d_get_yrange (const gsl_histogram2d * h, const size_t j,
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double *ylower, double *yupper)
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{
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const size_t ny = h->ny;
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if (j >= ny)
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{
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GSL_ERROR ("index j lies outside valid range of 0 .. ny - 1", GSL_EDOM);
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}
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*ylower = h->yrange[j];
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*yupper = h->yrange[j + 1];
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return GSL_SUCCESS;
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}
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int
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gsl_histogram2d_find (const gsl_histogram2d * h,
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const double x, const double y,
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size_t * i, size_t * j)
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{
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int status = find (h->nx, h->xrange, x, i);
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if (status)
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{
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GSL_ERROR ("x not found in range of h", GSL_EDOM);
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}
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status = find (h->ny, h->yrange, y, j);
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if (status)
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{
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GSL_ERROR ("y not found in range of h", GSL_EDOM);
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}
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return GSL_SUCCESS;
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}
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