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- # Copyright (C) 1993, 1994, 1995 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, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- function axis (ax)
-
- # usage: axis ()
- # axis ([xmin, xmax])
- # axis ([xmin, xmax, ymin, ymax])
- # axis ([xmin, xmax, ymin, ymax, zmin, zmax])
- #
- # Sets the axis limits.
- #
- # With no arguments, turns autoscaling on.
- #
- # If your plot is already drawn, then you need to REPLOT before
- # the new axis limits will take effect.
-
- if (nargin > 1)
- usage ("axis ([xmin, xmax, ymin, ymax, zmin, zmax])");
- endif
-
- if (nargin == 0)
- set autoscale;
- elseif (is_vector (ax))
-
- len = length (ax);
-
- if (len != 2 && len != 4 && len != 6)
- error ("axis: expecting vector with 2, 4, or 6 elements");
- endif
-
- if (len > 1)
- eval (sprintf ("set xrange [%g:%g];", ax (1), ax (2)));
- endif
-
- if (len > 3)
- eval (sprintf ("set yrange [%g:%g];", ax (3), ax (4)));
- endif
-
- if (len > 5)
- eval (sprintf ("set zrange [%g:%g];", ax (5), ax (6)));
- endif
-
- else
- error ("axis: expecting no args, or a vector with 2, 4, or 6 elements");
- endif
-
- endfunction
-