1 %% Copyright (c) 2011, INRA
2 %% 2004-2011, David Legland <david.legland@grignon.inra.fr>
3 %% 2011 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
5 %% All rights reserved.
6 %% (simplified BSD License)
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9 %% modification, are permitted provided that the following conditions are met:
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35 %% @deftypefn {Function File} {@var{line2} = } transformLine (@var{line1}, @var{T})
36 %% Transform a line with an affine transform.
38 %% Returns the line @var{line1} transformed with affine transform @var{T}.
39 %% @var{line1} has the form [x0 y0 dx dy], and @var{T} is a transformation
42 %% Format of @var{T} can be one of :
43 %% [a b] , [a b c] , or [a b c]
44 %% [d e] [d e f] [d e f]
47 %% Also works when @var{line1} is a [Nx4] array of double. In this case, @var{line2}
48 %% has the same size as @var{line1}.
50 %% @seealso{lines2d, transforms2d, transformPoint}
53 function dest = transformLine(line, trans)
56 points1 = line(:, 1:2);
57 points2 = line(:, 1:2) + line(:, 3:4);
60 points1 = transformPoint(points1, trans);
61 points2 = transformPoint(points2, trans);
63 dest = createLine(points1, points2);