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subplot_tight.m
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subplot_tight.m
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function h=subplot_tight(m,n,p,margins,varargin)
% http://www.mathworks.com/matlabcentral/fileexchange/30884-controllable-tight-subplot/content/subplot_tight/subplot_tight.m
% Copyright (c) 2011, Nikolay S.
% All rights reserved.
%
% Redistribution and use in source and binary forms, with or without
% modification, are permitted provided that the following conditions are
% met:
%
% * Redistributions of source code must retain the above copyright
% notice, this list of conditions and the following disclaimer.
% * Redistributions in binary form must reproduce the above copyright
% notice, this list of conditions and the following disclaimer in
% the documentation and/or other materials provided with the distribution
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
% POSSIBILITY OF SUCH DAMAGE.
%
%function subplot_tight(m,n,p,margins,varargin)
%
% Functional purpose: A wrapper function for Matlab function subplot. Adds the ability to define the margins between
% neighbouring subplots. Unfotrtunately Matlab subplot function lacks this functionality, and the margins between
% subplots can reach 40% of figure area, which is pretty lavish.
%
% Input arguments (defaults exist):
% margins- two elements vector [vertical,horizontal] defining the margins between neighbouring axes. Default value
% is 0.01. Note this vale will cause titles legends and labels to collide with the subplots, while presenting
% relatively large axis.
%
% Output arguments: same as subplot- none, or axes handle according to function call.
%
% Issues & Comments: Note that if additional elements are used in order to be passed to subplot, margins parameter must
% be defined. For default margins value use empty element- [].
%
% Author and Date: Nikolay S. 29/03/2011.
% Last update: Nikolay S. 21/04/2011 (accourding to Alan B comment).
%
% Usage example: h=subplot_tight((2,3,1:2,[0.5,0.2])
if (nargin<4) || isempty(margins)
margins=[0.01,0.01]; % default margins value- 1% of figure
end
if length(margins)==1
margins(2)=margins;
end
%note n and m are switched as Matlab indexing is column-wise, while subplot indexing is row-wise :(
[subplot_col,subplot_row]=ind2sub([n,m],p);
height=(1-(m+1)*margins(1))/m; % single subplot height
width=(1-(n+1)*margins(2))/n; % single subplot width
% note subplot suppors vector p inputs- so a merged subplot of higher dimentions will be created
subplot_cols=1+max(subplot_col)-min(subplot_col); % number of column elements in merged subplot
subplot_rows=1+max(subplot_row)-min(subplot_row); % number of row elements in merged subplot
merged_height=subplot_rows*( height+margins(1) )- margins(1); % merged subplot height
merged_width= subplot_cols*( width +margins(2) )- margins(2); % merged subplot width
merged_bottom=(m-max(subplot_row))*(height+margins(1)) +margins(1); % merged subplot bottom position
merged_left=min(subplot_col)*(width+margins(2))-width; % merged subplot left position
pos_vec=[merged_left merged_bottom merged_width merged_height];
% h_subplot=subplot(m,n,p,varargin{:},'Position',pos_vec);
% Above line doesn't work as subplot tends to ignore 'position' when same mnp is utilized
h_subplot=subplot('Position',pos_vec,varargin{:});
if nargout~=0
h=h_subplot;
end