X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fgeometry-1.5.0%2Fgeom2d%2FcreateTranslation.m;fp=octave_packages%2Fgeometry-1.5.0%2Fgeom2d%2FcreateTranslation.m;h=8046cc81b4ce21dfc6ff99d2e586634f460adeb1;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05 diff --git a/octave_packages/geometry-1.5.0/geom2d/createTranslation.m b/octave_packages/geometry-1.5.0/geom2d/createTranslation.m new file mode 100644 index 0000000..8046cc8 --- /dev/null +++ b/octave_packages/geometry-1.5.0/geom2d/createTranslation.m @@ -0,0 +1,71 @@ +%% Copyright (c) 2011, INRA +%% 2004-2011, David Legland +%% 2011 Adapted to Octave by Juan Pablo Carbajal +%% +%% All rights reserved. +%% (simplified BSD License) +%% +%% Redistribution and use in source and binary forms, with or without +%% modification, are permitted provided that the following conditions are met: +%% +%% 1. Redistributions of source code must retain the above copyright notice, this +%% list of conditions and the following disclaimer. +%% +%% 2. 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 HOLDER 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. +%% +%% The views and conclusions contained in the software and documentation are +%% those of the authors and should not be interpreted as representing official +%% policies, either expressed or implied, of copyright holder. + +%% -*- texinfo -*- +%% @deftypefn {Function File} {@var{T} = } createTranslation (@var{vector}) +%% @deftypefnx {Function File} {@var{T} = } createTranslation (@var{dx},@var{dy}) +%% Create the 3*3 matrix of a translation. +%% +%% Returns the matrix corresponding to a translation by the vector [@var{dx} @var{dy}]. +%% The components can be given as two arguments. +%% The returned matrix has the form : +%% [1 0 TX] +%% [0 1 TY] +%% [0 0 1] +%% +%% @seealso{transforms2d, transformPoint, createRotation, createScaling} +%% @end deftypefn + +function trans = createTranslation(varargin) + + % process input arguments + if isempty(varargin) + tx = 0; + ty = 0; + elseif length(varargin)==1 + var = varargin{1}; + tx = var(1); + ty = var(2); + else + tx = varargin{1}; + ty = varargin{2}; + end + + % create the matrix representing the translation + trans = [1 0 tx ; 0 1 ty ; 0 0 1]; + +endfunction + +%!test +%! trans = createTranslation(2, 3); +%! assert (trans, [1 0 2;0 1 3;0 0 1], 1e-6);