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## Copyright (C) 2024 David Legland
## All rights reserved.
##
## 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 AUTHOR 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 the copyright holders.
function line = edgeToLine3d(edge)
%EDGETOLINE3D Convert a 3D edge to a 3D straight line.
%
% LINE = edgeToLine3d(EDGE)
% Returns the 3D straight line containing the 3D edge EDGE.
% EDGE is represented as [X1 Y1 Z1 X2 Y2 Z2]
% LINE is represented as [X0 Y0 Z0 DX DY DZ]
%
% Example
% edge = [3 4 5 4 6 8];
% line = edgeToLine3d(edge)
% line =
% 3 4 5 1 2 3
%
% See also
% lines3d, edges3d, edgeToLine, lineToEdge3d
% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2018-04-12, using Matlab 9.3.0.713579 (R2017b)
% Copyright 2018-2023 INRA - Cepia Software Platform
line = [edge(:, 1:3) edge(:, 4:6)-edge(:, 1:3)];
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