/usr/share/octave/packages/geometry-1.7.0/geom2d/drawEdge.m is in octave-geometry 1.7.0-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | ## Copyright (C) 2004-2011 David Legland <david.legland@grignon.inra.fr>
## Copyright (C) 2004-2011 INRA - CEPIA Nantes - MIAJ (Jouy-en-Josas)
## Copyright (C) 2012 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
## 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.
## -*- 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;
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