| /* histogram/get2d.c |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 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 2 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 <gsl/gsl_errno.h> |
| #include <gsl/gsl_histogram2d.h> |
| |
| #include "find.c" |
| |
| double |
| gsl_histogram2d_get (const gsl_histogram2d * h, const size_t i, const size_t j) |
| { |
| const size_t nx = h->nx; |
| const size_t ny = h->ny; |
| |
| if (i >= nx) |
| { |
| GSL_ERROR_VAL ("index i lies outside valid range of 0 .. nx - 1", |
| GSL_EDOM, 0); |
| } |
| |
| if (j >= ny) |
| { |
| GSL_ERROR_VAL ("index j lies outside valid range of 0 .. ny - 1", |
| GSL_EDOM, 0); |
| } |
| |
| return h->bin[i * ny + j]; |
| } |
| |
| int |
| gsl_histogram2d_get_xrange (const gsl_histogram2d * h, const size_t i, |
| double *xlower, double *xupper) |
| { |
| const size_t nx = h->nx; |
| |
| if (i >= nx) |
| { |
| GSL_ERROR ("index i lies outside valid range of 0 .. nx - 1", GSL_EDOM); |
| } |
| |
| *xlower = h->xrange[i]; |
| *xupper = h->xrange[i + 1]; |
| |
| return GSL_SUCCESS; |
| } |
| |
| int |
| gsl_histogram2d_get_yrange (const gsl_histogram2d * h, const size_t j, |
| double *ylower, double *yupper) |
| { |
| const size_t ny = h->ny; |
| |
| if (j >= ny) |
| { |
| GSL_ERROR ("index j lies outside valid range of 0 .. ny - 1", GSL_EDOM); |
| } |
| |
| *ylower = h->yrange[j]; |
| *yupper = h->yrange[j + 1]; |
| |
| return GSL_SUCCESS; |
| } |
| |
| int |
| gsl_histogram2d_find (const gsl_histogram2d * h, |
| const double x, const double y, |
| size_t * i, size_t * j) |
| { |
| int status = find (h->nx, h->xrange, x, i); |
| |
| if (status) |
| { |
| GSL_ERROR ("x not found in range of h", GSL_EDOM); |
| } |
| |
| status = find (h->ny, h->yrange, y, j); |
| |
| if (status) |
| { |
| GSL_ERROR ("y not found in range of h", GSL_EDOM); |
| } |
| |
| return GSL_SUCCESS; |
| } |