1## Copyright (C) 2021 David Legland
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27
28function dest = transformLine(line, trans)
29%TRANSFORMLINE Transform a line with an affine transform.
30%
31%   LINE2 = transformLine(LINE1, TRANS);
32%   returns the line LINE1 transformed with affine transform TRANS.
33%   LINE1 has the form [x0 y0 dx dy], and TRANS is a transformation
34%   matrix.
35%
36%   Format of TRANS can be one of :
37%   [a b]   ,   [a b c] , or [a b c]
38%   [d e]       [d e f]      [d e f]
39%                            [0 0 1]
40%
41%   LINE2 = transformLine(LINES, TRANS);
42%   Also work when LINES is a [N*4] array of double. In this case, LINE2
43%   has the same size as LINE.
44%
45%   See also:
46%   lines2d, transforms2d, transformPoint
47%
48%   ---------
49%   author : David Legland
50%   INRA - TPV URPOI - BIA IMASTE
51%   created the 06/04/2004.
52%
53
54%   HISTORY
55%   02/03/2007: rewrite function
56
57
58% isolate points
59points1 = line(:, 1:2);
60points2 = line(:, 1:2) + line(:, 3:4);
61
62% transform points
63points1 = transformPoint(points1, trans);
64points2 = transformPoint(points2, trans);
65
66dest = createLine(points1, points2);
67