1 files changed, 101 insertions, 0 deletions
diff --git a/gsl-1.9/histogram/get2d.c b/gsl-1.9/histogram/get2d.c
new file mode 100644
index 0000000..593e2de
--- /dev/null
+++ b/gsl-1.9/histogram/get2d.c
@@ -0,0 +1,101 @@
+/* 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;
+}