--- /dev/null
+%% Copyright (c) 2011, INRA
+%% 2004-2011, David Legland <david.legland@grignon.inra.fr>
+%% 2011 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
+%%
+%% All rights reserved.
+%% (simplified BSD License)
+%%
+%% 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 COPYRIGHT HOLDER 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 copyright holder.
+
+%% -*- texinfo -*-
+%% @deftypefn {Function File} {@var{h} = } drawEdge (@var{x1}, @var{y1}, @var{x2}, @var{y2})
+%% @deftypefnx {Function File} {@var{h} = } drawEdge ([@var{x1} @var{y1} @var{x2} @var{y2}])
+%% @deftypefnx {Function File} {@var{h} = } drawEdge ([@var{x1} @var{y1}], [@var{x2} @var{y2}])
+%% @deftypefnx {Function File} {@var{h} = } drawEdge (@var{x1}, @var{y1}, @var{z1}, @var{x2}, @var{y2}, @var{z2})
+%% @deftypefnx {Function File} {@var{h} = } drawEdge ([@var{x1} @var{y1} @var{z1} @var{x2} @var{y2} @var{z2}])
+%% @deftypefnx {Function File} {@var{h} = } drawEdge ([@var{x1} @var{y1} @var{z1}], [@var{x2} @var{y2} @var{z2}])
+%% @deftypefnx {Function File} {@var{h} = } drawEdge (@dots{}, @var{opt})
+%% Draw an edge given by 2 points.
+%%
+%% Draw an edge between the points (x1 y1) and (x2 y2). Data can be bundled as an edge.
+%% The function supports 3D edges.
+%% Arguments can be single values or array of size [Nx1]. In this case,
+%% the function draws multiple edges.
+%% @var{opt}, being a set of pairwise options, can
+%% specify color, line width and so on. These are passed to function @code{line}.
+%% The function returns handle(s) to created edges(s).
+%%
+%% @seealso{edges2d, drawCenteredEdge, drawLine, line}
+%% @end deftypefn
+
+function varargout = drawEdge(varargin)
+
+ % separate edge and optional arguments
+ [edge options] = parseInputArguments(varargin{:});
+
+ % draw the edges
+ if size(edge, 2)==4
+ h = drawEdge_2d(edge, options);
+ else
+ h = drawEdge_3d(edge, options);
+ end
+
+ % eventually return handle to created edges
+ if nargout>0
+ varargout{1}=h;
+ end
+
+endfunction
+
+function h = drawEdge_2d(edge, options)
+
+ h = -1*ones(size(edge, 1), 1);
+
+ for i=1:size(edge, 1)
+ if isnan(edge(i,1))
+ continue;
+ end
+ h(i) = line(...
+ [edge(i, 1) edge(i, 3)], ...
+ [edge(i, 2) edge(i, 4)], options{:});
+ end
+
+endfunction
+
+function h = drawEdge_3d(edge, options)
+
+ h = -1*ones(size(edge, 1), 1);
+
+ for i=1:size(edge, 1)
+ if isnan(edge(i,1))
+ continue;
+ end
+ h(i) = line( ...
+ [edge(i, 1) edge(i, 4)], ...
+ [edge(i, 2) edge(i, 5)], ...
+ [edge(i, 3) edge(i, 6)], options{:});
+ end
+
+endfunction
+
+function [edge options] = parseInputArguments(varargin)
+
+ % default values for parameters
+ edge = [];
+
+ % find the number of arguments defining edges
+ nbVal=0;
+ for i=1:nargin
+ if isnumeric(varargin{i})
+ nbVal = nbVal+1;
+ else
+ % stop at the first non-numeric value
+ break;
+ end
+ end
+
+ % extract drawing options
+ options = varargin(nbVal+1:end);
+
+ % ensure drawing options have correct format
+ if length(options)==1
+ options = [{'color'}, options];
+ end
+
+ % extract edges characteristics
+ if nbVal==1
+ % all parameters in a single array
+ edge = varargin{1};
+
+ elseif nbVal==2
+ % parameters are two points, or two arrays of points, of size N*2.
+ p1 = varargin{1};
+ p2 = varargin{2};
+ edge = [p1 p2];
+
+ elseif nbVal==4
+ % parameters are 4 parameters of the edge : x1 y1 x2 and y2
+ edge = [varargin{1} varargin{2} varargin{3} varargin{4}];
+
+ elseif nbVal==6
+ % parameters are 6 parameters of the edge : x1 y1 z1 x2 y2 and z2
+ edge = [varargin{1} varargin{2} varargin{3} varargin{4} varargin{5} varargin{6}];
+ end
+
+endfunction
+
+%!demo
+%! close
+%! points = rand(4,4);
+%! colorstr = 'rgbm';
+%! for i=1:4
+%! drawEdge (points(i,:),'color',colorstr(i),'linewidth',2);
+%! end
+%! axis tight;
+
+%!demo
+%! close
+%! drawEdge (rand(10,4),'linewidth',2);
+%! axis tight;
+
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff