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axis

PURPOSE ^

% Set axis limits for plots.

SYNOPSIS ^

function curr_axis = axis (ax, varargin)

DESCRIPTION ^

% -*- texinfo -*-
% @deftypefn {Function File} {} axis (@var{limits})
% Set axis limits for plots.
%
% The argument @var{limits} should be a 2, 4, or 6 element vector.  The
% first and second elements specify the lower and upper limits for the x
% axis.  The third and fourth specify the limits for the y axis, and the
% fifth and sixth specify the limits for the z axis.
%
% If your plot is already drawn, then you need to use @code{replot} before
% the new axis limits will take effect.  You can get this to happen
% automatically by setting the built-in variable @code{automatic_replot}
% to a nonzero value.
%
% Without any arguments, @code{axis} turns autoscaling on.
%
% The vector argument specifying limits is optional, and additional
% string arguments may be used to specify various axis properties.  For
% example,
%
% @example
% axis ([1, 2, 3, 4], 'square');
% @end example
%
% @noindent
% forces a square aspect ratio, and
%
% @example
% axis ('labely', 'tic');
% @end example
%
% @noindent
% turns tic marks on for all axes and tic mark labels on for the y-axis
% only.
%
% @noindent
% The following options control the aspect ratio of the axes.
%
% @table @code
% @item 'square'
% Force a square aspect ratio.
% @item 'equal'
% Force x distance to equal y-distance.
% @item 'normal'
% Restore the balance.
% @end table
%
% @noindent
% The following options control the way axis limits are interpreted.
%
% @table @code
% @item 'auto' 
% Set the specified axes to have nice limits around the data
% or all if no axes are specified.
% @item 'manual' 
% Fix the current axes limits.
% @item 'tight'
% Fix axes to the limits of the data (not implemented).
% @end table
%
% @noindent
% The option @code{'image'} is equivalent to @code{'tight'} and
% @code{'equal'}.
%
% @noindent
% The following options affect the appearance of tic marks.
%
% @table @code
% @item 'on' 
% Turn tic marks and labels on for all axes.
% @item 'off'
% Turn tic marks off for all axes.
% @item 'tic[xyz]'
% Turn tic marks on for all axes, or turn them on for the
% specified axes and off for the remainder.
% @item 'label[xyz]'
% Turn tic labels on for all axes, or turn them on for the 
% specified axes and off for the remainder.
% @item 'nolabel'
% Turn tic labels off for all axes.
% @end table
% Note, if there are no tic marks for an axis, there can be no labels.
%
% @noindent
% The following options affect the direction of increasing values on
% the axes.
%
% @table @code
% @item 'ij'
% Reverse y-axis, so lower values are nearer the top.
% @item 'xy' 
% Restore y-axis, so higher values are nearer the top. 
% @end table
% @end deftypefn

CROSS-REFERENCE INFORMATION ^

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