--- /dev/null
+## Copyright (C) 2005-2012 John W. Eaton
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING. If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} patch ()
+## @deftypefnx {Function File} {} patch (@var{x}, @var{y}, @var{c})
+## @deftypefnx {Function File} {} patch (@var{x}, @var{y}, @var{z}, @var{c})
+## @deftypefnx {Function File} {} patch (@var{fv})
+## @deftypefnx {Function File} {} patch ('Faces', @var{f}, 'Vertices', @var{v}, @dots{})
+## @deftypefnx {Function File} {} patch (@dots{}, @var{prop}, @var{val})
+## @deftypefnx {Function File} {} patch (@var{h}, @dots{})
+## @deftypefnx {Function File} {@var{h} =} patch (@dots{})
+## Create patch object from @var{x} and @var{y} with color @var{c} and
+## insert in the current axes object. Return handle to patch object.
+##
+## For a uniform colored patch, @var{c} can be given as an RGB vector,
+## scalar value referring to the current colormap, or string value (for
+## example, "r" or "red").
+##
+## If passed a structure @var{fv} contain the fields "vertices", "faces"
+## and optionally "facevertexcdata", create the patch based on these
+## properties.
+##
+## The optional return value @var{h} is a graphics handle to the created patch
+## object.
+## @seealso{fill}
+## @end deftypefn
+
+## Author: jwe
+
+function retval = patch (varargin)
+
+ [h, varargin] = __plt_get_axis_arg__ ("patch", varargin{:});
+
+ [tmp, failed] = __patch__ (h, varargin{:});
+
+ if (failed)
+ print_usage ();
+ endif
+
+ if (nargout > 0)
+ retval = tmp;
+ endif
+
+endfunction
+
+%!demo
+%! ## Patches with same number of vertices
+%! clf
+%! t1 = (1/16:1/8:1)'*2*pi;
+%! t2 = ((1/16:1/8:1)' + 1/32)*2*pi;
+%! x1 = sin (t1) - 0.8;
+%! y1 = cos (t1);
+%! x2 = sin (t2) + 0.8;
+%! y2 = cos (t2);
+%! patch([x1,x2],[y1,y2],'r');
+
+%!demo
+%! ## Unclosed patch
+%! clf
+%! t1 = (1/16:1/8:1)'*2*pi;
+%! t2 = ((1/16:1/16:1)' + 1/32)*2*pi;
+%! x1 = sin (t1) - 0.8;
+%! y1 = cos (t1);
+%! x2 = sin (t2) + 0.8;
+%! y2 = cos (t2);
+%! patch([[x1;NaN(8,1)],x2],[[y1;NaN(8,1)],y2],'r');
+
+%!demo
+%! ## Specify vertices and faces separately
+%! clf
+%! t1 = (1/16:1/8:1)'*2*pi;
+%! t2 = ((1/16:1/16:1)' + 1/32)*2*pi;
+%! x1 = sin (t1) - 0.8;
+%! y1 = cos (t1);
+%! x2 = sin (t2) + 0.8;
+%! y2 = cos (t2);
+%! vert = [x1, y1; x2, y2];
+%! fac = [1:8,NaN(1,8);9:24];
+%! patch('Faces',fac,'Vertices',vert,'FaceColor','r');
+
+%!demo
+%! ## Specify vertices and faces separately
+%! clf
+%! t1 = (1/16:1/8:1)'*2*pi;
+%! t2 = ((1/16:1/16:1)' + 1/32)*2*pi;
+%! x1 = sin (t1) - 0.8;
+%! y1 = cos (t1);
+%! x2 = sin (t2) + 0.8;
+%! y2 = cos (t2);
+%! vert = [x1, y1; x2, y2];
+%! fac = [1:8,NaN(1,8);9:24];
+%! patch('Faces',fac,'Vertices',vert,'FaceVertexCData', [0, 1, 0; 0, 0, 1]);
+
+%!demo
+%! ## Property change on multiple patches
+%! clf
+%! t1 = (1/16:1/8:1)'*2*pi;
+%! t2 = ((1/16:1/8:1)' + 1/32)*2*pi;
+%! x1 = sin (t1) - 0.8;
+%! y1 = cos (t1);
+%! x2 = sin (t2) + 0.8;
+%! y2 = cos (t2);
+%! h = patch([x1,x2],[y1,y2],cat (3,[0,0],[1,0],[0,1]));
+%! pause (1);
+%! set (h, 'FaceColor', 'r');
+
+%!demo
+%! clf
+%! vertices = [0, 0, 0;
+%! 1, 0, 0;
+%! 1, 1, 0;
+%! 0, 1, 0;
+%! 0.5, 0.5, 1];
+%! faces = [1, 2, 5;
+%! 2, 3, 5;
+%! 3, 4, 5;
+%! 4, 1, 5];
+%! patch ('Vertices', vertices, 'Faces', faces, ...
+%! 'FaceVertexCData', jet(4), 'FaceColor', 'flat');
+%! view (-37.5, 30);
+
+%!demo
+%! clf
+%! vertices = [0, 0, 0;
+%! 1, 0, 0;
+%! 1, 1, 0;
+%! 0, 1, 0;
+%! 0.5, 0.5, 1];
+%! faces = [1, 2, 5;
+%! 2, 3, 5;
+%! 3, 4, 5;
+%! 4, 1, 5];
+%! patch ('Vertices', vertices, 'Faces', faces, ...
+%! 'FaceVertexCData', jet(5), 'FaceColor', 'interp');
+%! view (-37.5, 30);
+
+%!demo
+%! clf
+%! colormap (jet);
+%! x = [0 1 1 0];
+%! y = [0 0 1 1];
+%! subplot (2, 1, 1);
+%! title ("Blue, Light-Green, and Red Horizontal Bars");
+%! patch (x, y + 0, 1);
+%! patch (x, y + 1, 2);
+%! patch (x, y + 2, 3);
+%! subplot (2, 1, 2);
+%! title ("Blue, Light-Green, and Red Vertical Bars");
+%! patch (x + 0, y, 1 * ones (size (x)));
+%! patch (x + 1, y, 2 * ones (size (x)));
+%! patch (x + 2, y, 3 * ones (size (x)));
+
+%!demo
+%! clf
+%! colormap (jet);
+%! x = [0 1 1 0];
+%! y = [0 0 1 1];
+%! subplot (2, 1, 1);
+%! title ("Blue horizontal bars: Dark to Light");
+%! patch (x, y + 0, 1, "cdatamapping", "direct");
+%! patch (x, y + 1, 9, "cdatamapping", "direct");
+%! patch (x, y + 2, 17, "cdatamapping", "direct");
+%! subplot (2, 1, 2);
+%! title ("Blue vertical bars: Dark to Light")
+%! patch (x + 0, y, 1 * ones (size (x)), "cdatamapping", "direct");
+%! patch (x + 1, y, 9 * ones (size (x)), "cdatamapping", "direct");
+%! patch (x + 2, y, 17 * ones (size (x)), "cdatamapping", "direct");
+
+%!demo
+%! clf;
+%! colormap (jet);
+%! x = [ 0 0; 1 1; 1 0 ];
+%! y = [ 0 0; 0 1; 1 1 ];
+%! p = patch (x, y, "facecolor", "b");
+%! title ("Two blue triangles");
+%! set (p, "cdatamapping", "direct", "facecolor", "flat", "cdata", [1 32]);
+%! title ("Direct mapping of colors: Light-Green UL and Blue LR triangles");
+
+%!demo
+%! clf;
+%! colormap (jet);
+%! x = [ 0 0; 1 1; 1 0 ];
+%! y = [ 0 0; 0 1; 1 1 ];
+%! p = patch (x, y, [1 32]);
+%! title ("Autoscaling of colors: Red UL and Blue LR triangles");
+
+%!test
+%! hf = figure ("visible", "off");
+%! unwind_protect
+%! h = patch;
+%! assert (findobj (hf, "type", "patch"), h);
+%! assert (get (h, "xdata"), [0; 1; 0], eps);
+%! assert (get (h, "ydata"), [1; 1; 0], eps);
+%! assert (isempty (get (h, "zdata")));
+%! assert (isempty (get (h, "cdata")));
+%! assert (get (h, "faces"), [1, 2, 3], eps);
+%! assert (get (h, "vertices"), [0 1; 1 1; 0 0], eps);
+%! assert (get (h, "type"), "patch");
+%! assert (get (h, "facecolor"), [0 0 0]);
+%! assert (get (h, "linestyle"), get (0, "defaultpatchlinestyle"));
+%! assert (get (h, "linewidth"), get (0, "defaultpatchlinewidth"), eps);
+%! assert (get (h, "marker"), get (0, "defaultpatchmarker"));
+%! assert (get (h, "markersize"), get (0, "defaultpatchmarkersize"));
+%! unwind_protect_cleanup
+%! close (hf);
+%! end_unwind_protect
+
+%!test
+%! hf = figure ("visible", "off");
+%! c = 0.9;
+%! unwind_protect
+%! h = patch ([0 1 0], [0 1 1], c);
+%! assert (get (gca, "clim"), [c - 1, c + 1]);
+%! h = patch ([0 1 0], [0 1 1], 2 * c);
+%! assert (get (gca, "clim"), [c, 2 * c]);
+%! unwind_protect_cleanup
+%! close (hf);
+%! end_unwind_protect
+
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff