X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fcontrol-2.3.52%2F__axis_margin__.m;fp=octave_packages%2Fcontrol-2.3.52%2F__axis_margin__.m;h=a967782346f22f5d1d9f2ff4c04cf2ec7c345886;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05

diff --git a/octave_packages/control-2.3.52/__axis_margin__.m b/octave_packages/control-2.3.52/__axis_margin__.m
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+## Copyright (C) 1998, 2000, 2004, 2005, 2007
+##               Auburn University.  All rights reserved.
+##
+##
+## 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; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} __axis_margin__ (@var{axdata})
+## Determine axis limits for 2-D data (column vectors); leaves a 10%
+## margin around the plots.
+## Inserts margins of +/- 0.1 if data is one-dimensional 
+## (or a single point).
+##
+## @strong{Input}
+## @table @var
+## @item axdata
+## @var{n} by 2 matrix of data [@var{x}, @var{y}].
+## @end table
+##
+## @strong{Output}
+## @table @var
+## @item axvec
+## Vector of axis limits appropriate for call to @command{axis} function.
+## @end table
+## @end deftypefn
+
+function axvec = __axis_margin__ (axdata)
+
+  ## compute axis limits
+  minv = axdata(1);
+  maxv = axdata(2);
+  delv = (maxv-minv)/2;             # breadth of the plot
+  midv = (minv + maxv)/2;           # midpoint of the plot
+  axmid = [midv, midv];
+  axdel = [-0.1, 0.1];              # default plot width (if less than 2-d data)
+  
+  if (delv == 0)
+    if (midv != 0)
+      axdel = [-0.1*midv, 0.1*midv];
+    endif
+  else
+    ## they're at least one-dimensional
+    tolv = max(1e-8, 1e-8*abs(midv));
+    if (abs (delv) >= tolv)
+      axdel = 1.1*[-delv,delv];
+    endif
+  endif
+  
+  axvec = axmid + axdel;
+
+endfunction