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function varargout = subsref(this,subs)
% Subscript referencing for GIfTI objects
%__________________________________________________________________________
% Copyright (C) 2008 Wellcome Trust Centre for Neuroimaging
% Guillaume Flandin
% $Id: subsref.m 6345 2015-02-20 12:25:50Z guillaume $
if length(this) > 1 && ~strcmp(subs(1).type,'()')
warning('Not implemented.');
for i=1:numel(this)
varargout{i} = subsref(this(i),subs);
end
return;
end
switch subs(1).type
case '.'
[i,j] = isintent(this,subs(1).subs);
if isempty(i)
if strcmp(subs(1).subs,'private')
varargout{1} = builtin('struct',this);
else
error('Reference to non-existent field ''%s''.',subs(1).subs);
end
else
if strcmp(subs(1).subs,'mat')
varargout{1} = this.data{j}.space.MatrixData;
elseif strcmp(subs(1).subs,'labels')
varargout{1} = this.label;
else
if length(j) == 1
varargout{1} = this.data{j}.data;
else
a = [this.data{j}];
try
varargout{1} = [a.data];
catch
error('Data arrays are of different sizes.');
end
end
end
end
if strcmp(subs(1).subs,'faces') || strcmp(subs(1).subs,'indices')
varargout{1} = varargout{1} + 1; % indices start at 1
end
if length(subs) > 1
varargout{1} = subsref(varargout{1},subs(2:end));
end
case '{}'
error('Cell contents reference from a non-cell array object.');
case '()'
if length(subs) == 1
varargout{1} = builtin('subsref',this,subs(1));
else
varargout{1} = subsref(builtin('subsref',this,subs(1)),subs(2:end));
end
otherwise
error('This should not happen.');
end |