1## Copyright (C) 2021 David Legland
2## All rights reserved.
3##
4## Redistribution and use in source and binary forms, with or without
5## modification, are permitted provided that the following conditions are met:
6##
7##     1 Redistributions of source code must retain the above copyright notice,
8##       this list of conditions and the following disclaimer.
9##     2 Redistributions in binary form must reproduce the above copyright
10##       notice, this list of conditions and the following disclaimer in the
11##       documentation and/or other materials provided with the distribution.
12##
13## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS''
14## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
17## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19## SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
20## CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
21## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23##
24## The views and conclusions contained in the software and documentation are
25## those of the authors and should not be interpreted as representing official
26## policies, either expressed or implied, of the copyright holders.
27
28function lines2d(varargin)
29%LINES2D  Description of functions operating on planar lines.
30%
31%   The term 'line' refers to a planar straight line, which is an unbounded
32%   curve. Line segments defined between 2 points, which are bounded, are
33%   called 'edge', and are presented in file 'edges2d'.
34%
35%   A straight line is defined by a point (its origin), and a vector (its
36%   direction). The parameters are bundled into a 1-by-4 row vector:
37%   LINE = [x0 y0 dx dy];
38%
39%   A line contains all points (x,y) such that:
40%       x = x0 + t*dx
41%       y = y0 + t*dy;
42%   for all t between -infinity and +infinity.
43%
44%   See also:
45%   points2d, vectors2d, edges2d, rays2d
46%   createLine, cartesianLine, medianLine, edgeToLine, lineToEdge
47%   orthogonalLine, parallelLine, bisector, radicalAxis
48%   lineAngle, linePosition, projPointOnLine
49%   isPointOnLine, distancePointLine, isLeftOriented
50%   intersectLines, intersectLineEdge, clipLine
51%   reverseLine, transformLine, drawLine
52%   lineFit
53
54% ------
55% Author: David Legland
56% e-mail: david.legland@inra.fr
57% Created: 2008-10-13,    using Matlab 7.4.0.287 (R2007a)
58% Copyright 2008 INRA - BIA PV Nantes - MIAJ Jouy-en-Josas.
59
60help('lines2d');
61