1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
// Copyright (C) 2010 - DIGITEO - Manuel Juliachs
// 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 [xy]=scaling(xy,scalingFactor,orig)
// xy=xy*scalingFactor+orig
//
// xy : matrix with 2 rows
// scalingFactor : scaling factor
// orig : origin, [0;0] if omitted
//!
[lhs,rhs]=argn(0)
select rhs
case 2 then orig=[0;0];
case 3 then orig=matrix(orig,2,1);
else error(msprintf(gettext("%s: Wrong number of input argument(s): %d to %d expected."), "scaling", 2, 3));
end;
//
[m,n]=size(xy)
if m<>2 then error("xy must be a vector with 2 rows [x;y]"),end
//
xy=xy-orig*ones(1,n)
xy=scalingFactor*xy+orig*ones(1,n)
endfunction
|
