/usr/share/octave/packages/geometry-1.7.0/geom3d/drawPolyline3d.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 | ## 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} =} drawPolyline3d (@var{poly})
## @deftypefnx {Function File} {@var{h} =} drawPolyline3d (@var{px},@var{py},@var{pz})
## @deftypefnx {Function File} {@var{h} =} drawPolyline3d (@dots{},@var{closed})
## @deftypefnx {Function File} {@var{h} =} drawPolyline3d (@dots{},@var{param},@var{value})
## Draw a 3D polyline specified by a list of vertices
##
## drawPolyline3d(POLY);
## packs coordinates in a single N-by-3 array.
##
## drawPolyline3d(PX, PY, PZ);
## specify coordinates in separate arrays.
##
## drawPolyline3d(..., CLOSED);
## Specifies if the polyline is closed or open. CLOSED can be one of:
## - 'closed'
## - 'open' (the default)
## - a boolean variable with value TRUE for closed polylines.
##
## drawPolyline3d(..., PARAM, VALUE);
## Specifies style options to draw the polyline, see plot for details.
##
## H = drawPolyline3d(...);
## also return a handle to the list of line objects.
##
## @seealso{polygons3d, drawPolygon3d, fillPolygon3d}
## @end deftypefn
function varargout = drawPolyline3d(varargin)
## Process input arguments
# check case we want to draw several curves, stored in a cell array
var = varargin{1};
if iscell(var)
hold on;
h = [];
for i = 1:length(var(:))
h = [h; drawPolyline3d(var{i}, varargin{2:end})]; ##ok<AGROW>
end
if nargout > 0
varargout = {h};
end
return;
end
# extract curve coordinates
if size(var, 2) == 1
# first argument contains x coord, second argument contains y coord
# and third one the z coord
px = var;
if length(varargin) < 3
error('Wrong number of arguments in drawPolyline3d');
end
py = varargin{2};
pz = varargin{3};
varargin = varargin(4:end);
else
# all coordinates are grouped in the first argument
px = var(:, 1);
py = var(:, 2);
pz = var(:, 3);
varargin = varargin(2:end);
end
# check if curve is closed or open (default is open)
closed = false;
if ~isempty(varargin)
var = varargin{1};
if islogical(var)
# check boolean flag
closed = var;
varargin = varargin(2:end);
elseif ischar(var)
# check string indicating close or open
if strncmpi(var, 'close', 5)
closed = true;
varargin = varargin(2:end);
elseif strncmpi(var, 'open', 4)
closed = false;
varargin = varargin(2:end);
end
end
end
## draw the curve
# for closed curve, add the first point at the end to close curve
if closed
px = [px; px(1)];
py = [py; py(1)];
pz = [pz; pz(1)];
end
h = plot3(px, py, pz, varargin{:});
if nargout > 0
varargout = {h};
end
endfunction
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