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)
8 %% Redistribution and use in source and binary forms, with or without
9 %% modification, are permitted provided that the following conditions are met:
11 %% 1. Redistributions of source code must retain the above copyright notice, this
12 %% list of conditions and the following disclaimer.
14 %% 2. Redistributions in binary form must reproduce the above copyright notice,
15 %% this list of conditions and the following disclaimer in the documentation
16 %% and/or other materials provided with the distribution.
18 %% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 %% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 %% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 %% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 %% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 %% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 %% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 %% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 %% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 %% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 %% POSSIBILITY OF SUCH DAMAGE.
30 %% The views and conclusions contained in the software and documentation are
31 %% those of the authors and should not be interpreted as representing official
32 %% policies, either expressed or implied, of copyright holder.
35 %% @deftypefn {Function File} {@var{point} = } pointOnLine (@var{line}, @var{d})
36 %% Create a point on a line at a given position on the line.
38 %% Creates the point belonging to the line @var{line}, and located at the
39 %% distance @var{d} from the line origin.
40 %% @var{line} has the form [x0 y0 dx dy].
41 %% @var{line} and @var{d} should have the same number N of rows. The result will have
42 %% N rows and 2 column (x and y positions).
44 %% @seealso{lines2d, points2d, onLine, onLine, linePosition}
47 function point = pointOnLine(lin, pos)
50 point = [lin(:,1) + pos .* cos(ang), lin(:,2) + pos .* sin(ang)];