diff scripts/plot/view.m @ 6257:44c91c5dfe1d

[project @ 2007-01-30 19:16:52 by jwe]
author jwe
date Tue, 30 Jan 2007 19:16:55 +0000
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+## Copyright (C) 2007 John W. Eaton
+##
+## This file is part of Octave.
+##
+## Octave 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, or (at your option)
+## any later version.
+##
+## Octave 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 Octave; see the file COPYING.  If not, write to the Free
+## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} view (@var{azimuth}, @var{elevation})
+## @deftypefnx {Function File} {} view (@var{dims})
+## @deftypefnx {Function File} {[@var{azimuth}, @var{elevation}] =} view ()
+## Set or get the viewpoint for the current axes.
+## @end deftypefn
+
+## Author: jwe
+
+function [azimuth, elevation] = view (x, y, z)
+
+  if (nargin < 4)
+    if (nargin == 1)
+      if (x == 2)
+	az = 0;
+	el = 90;
+      elseif (x == 3)
+	az = -37.5;
+	el = 30;
+      else
+	error ("view: expecting single argument to be 2 or 3");
+      endif
+    elseif (nargin == 2)
+      az = x;
+      el = y;
+    elseif (nargin == 3)
+      error ("view: view (x, y, z) not implemented");
+    endif
+
+    if (nargin > 0)
+      set (gca (), "view", [az, el]);
+    endif
+
+    if (nargout == 1)
+      error ("view: T = view () not implemented");
+    endif
+
+    if (nargout == 2)
+      azimuth = az;
+      elevation = el;
+    endif
+  else
+    print_usage ();
+  endif
+
+endfunction