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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
// Copyright (C) 2011 - DIGITEO - Michael Baudin
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
//
function MM=unpack(M,blocksizes)
//
// Check input arguments
[lhs,rhs]=argn();
if rhs<>2 then
error(msprintf(gettext("%s: Wrong number of input argument: %d expected.\n"),"unpack",2));
end
//
// Check type
if typeof(M) <> "constant" then
error(msprintf(gettext("%s: Wrong type for argument #%d: Real matrix expected.\n"),"unpack",1));
end
if typeof(blocksizes) <> "constant" then
error(msprintf(gettext("%s: Wrong type for argument #%d: Real matrix expected.\n"),"unpack",2));
end
//
// Check content
if ~isreal(M) then
error(msprintf(gettext("%s: Wrong type for argument #%d: Real matrix expected.\n"),"unpack",1));
end
if ~isreal(blocksizes) then
error(msprintf(gettext("%s: Wrong type for argument #%d: Real matrix expected.\n"),"unpack",2));
end
if or(blocksizes<1) then
error(msprintf(gettext("%s: Wrong value for input argument #%d: Non-negative integers expected.\n"),"unpack",2));
end
if or(blocksizes<>floor(blocksizes)) then
error(msprintf(gettext("%s: Wrong value for input argument #%d: An integer value expected.\n"),"unpack",2));
end
//
// Proceed...
MM=[]
[mM,nM]=size(M)
n=sum(blocksizes)
for j=1:nM
ptr=1
Mu=[]
for ni=blocksizes
Mui=[]
for l=1:ni
Mui(l:ni,l)=M(ptr:ptr+ni-l,j)
Mui(l,l:ni)=M(ptr:ptr+ni-l,j)'
ptr=ptr+ni-l+1
end
Mu=[Mu;matrix(Mui,ni*ni,1)]
end
MM=[MM,Mu]
end
endfunction
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