--- /dev/null
+## Copyright (C) 2007-2012 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} {} text (@var{x}, @var{y}, @var{label})
+## @deftypefnx {Function File} {} text (@var{x}, @var{y}, @var{z}, @var{label})
+## @deftypefnx {Function File} {} text (@var{x}, @var{y}, @var{label}, @var{p1}, @var{v1}, @dots{})
+## @deftypefnx {Function File} {} text (@var{x}, @var{y}, @var{z}, @var{label}, @var{p1}, @var{v1}, @dots{})
+## @deftypefnx {Function File} {@var{h} =} text (@dots{})
+## Create a text object with text @var{label} at position @var{x},
+## @var{y}, @var{z} on the current axes. Property-value pairs following
+## @var{label} may be used to specify the appearance of the text.
+##
+## The optional return value @var{h} is a graphics handle to the created text
+## object.
+## @end deftypefn
+
+## Author: jwe
+
+function h = text (varargin)
+
+ nargs = nargin;
+ offset = 0;
+
+ if (nargs > 2 && isnumeric (varargin{1}) && isnumeric (varargin{2}))
+ x = varargin{1};
+ y = varargin{2};
+ offset = 3;
+
+ if (nargin > 3 && isnumeric (varargin{3}))
+ z = varargin{3};
+ offset = 4;
+ else
+ z = zeros (size (x));
+ offset = 3;
+ endif
+
+ label = varargin{offset};
+ varargin(1:offset) = [];
+
+ nx = numel (x);
+ ny = numel (y);
+ nz = numel (z);
+ if (ischar (label) || isnumeric (label))
+ nt = size (label, 1);
+ if (nx > 1 && nt == 1)
+ ## Mutiple text objects with same string
+ label = repmat ({label}, [nx, 1]);
+ nt = nx;
+ elseif (nx > 1 && nt == nx)
+ ## Mutiple text objects with different strings
+ label = cellstr (label);
+ elseif (ischar (label))
+ ## Single text object with one or more lines
+ label = {label};
+ endif
+ elseif (iscell (label))
+ nt = numel (label);
+ if (nx > 1 && nt == 1)
+ label = repmat ({label}, [nx, 1]);
+ nt = nx;
+ elseif (! (nx > 1 && nt == nx))
+ label = {label};
+ nt = 1;
+ endif
+ else
+ error ("text: expecting LABEL to be a character string or cell array of character strings");
+ endif
+ else
+ x = y = z = 0;
+ nx = ny = nz = 1;
+ label = {""};
+ nt = 1;
+ endif
+
+ if (rem (numel (varargin), 2) == 0)
+
+ if (nx == ny && nx == nz && (nt == nx || nt == 1 || nx == 1))
+ pos = [x(:), y(:), z(:)];
+ ca = gca ();
+ tmp = zeros (nt, 1);
+ if (nx == 1)
+ ## TODO - Modify __go_text__() to accept cell-strings
+ tmp = __go_text__ (ca, "string", "foobar",
+ varargin{:},
+ "position", pos);
+ set (tmp, "string", label{1});
+ elseif (nt == nx)
+ for n = 1:nt
+ tmp(n) = __go_text__ (ca, "string", label{n},
+ varargin{:},
+ "position", pos(n,:));
+ endfor
+ __request_drawnow__ ();
+ else
+ error ("text: dimension mismatch for coordinates and LABEL");
+ endif
+ elseif (nt == nx || nt == 1 || nx == 1)
+ error ("text: dimension mismatch for coordinates");
+ else
+ error ("text: mismatch betwween coordinates and strings");
+ endif
+
+ if (nargout > 0)
+ h = tmp;
+ endif
+
+ else
+ print_usage ();
+ endif
+
+endfunction
+
+%!demo
+%! clf
+%! ha = {"left", "center", "right"};
+%! va = {"bottom", "middle", "top"};
+%! x = [0.25 0.5 0.75];
+%! y = [0.25 0.5 0.75];
+%! for t = 0:30:359;
+%! for nh = 1:numel(ha)
+%! for nv = 1:numel(va)
+%! text (x(nh), y(nv), "Hello World", ...
+%! "rotation", t, ...
+%! "horizontalalignment", ha{nh}, ...
+%! "verticalalignment", va{nv});
+%! endfor
+%! endfor
+%! endfor
+%! set (gca, "xtick", [0.25, 0.5, 0.75], ...
+%! "xticklabel", ha, ...
+%! "ytick", [0.25, 0.5, 0.75], ...
+%! "yticklabel", va);
+%! axis ([0 1 0 1]);
+%! xlabel ("horizontal alignment");
+%! ylabel ("vertical alignment");
+%! title ("text alignment and rotation (0:30:360 degrees)")
+
+%!demo
+%! clf
+%! h = mesh (peaks, "edgecolor", 0.7 * [1 1 1], ...
+%! "facecolor", "none", ...
+%! "facealpha", 0);
+%! for t = 0:45:359;
+%! text (25, 25, 0, "Vertical Alignment = Bottom", ...
+%! "rotation", t, ...
+%! "horizontalalignment", "left", ...
+%! "verticalalignment", "bottom");
+%! endfor
+%! caxis ([-100 100]);
+%! title ("Vertically Aligned at Bottom");
+
+%!demo
+%! clf
+%! axis ([0 8 0 8]);
+%! title (["1st title";"2nd title"]);
+%! xlabel (["1st xlabel";"2nd xlabel"]);
+%! ylabel (["1st ylabel";"2nd ylabel"]);
+%! text (4, 4, {"Hello", "World"}, ...
+%! "horizontalalignment", "center", ...
+%! "verticalalignment", "middle");
+%! grid on
+
+%!demo
+%! clf
+%! h = mesh (peaks, "edgecolor", 0.7 * [1 1 1], ...
+%! "facecolor", "none", ...
+%! "facealpha", 0);
+%! title (["1st title";"2nd title"]);
+%! xlabel (["1st xlabel";"2nd xlabel"]);
+%! ylabel (["1st ylabel";"2nd ylabel"]);
+%! zlabel (["1st zlabel";"2nd zlabel"]);
+%! text (0, 0, 5, {"Hello", "World"}, ...
+%! "horizontalalignment", "center", ...
+%! "verticalalignment", "middle");
+%! hold on;
+%! plot3 (0, 0, 5, "+k");
+
+%!demo
+%! clf
+%! h = text (0.5, 0.3, "char");
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.5, 0.4, ["char row 1"; "char row 2"]);
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.5, 0.6, {"cell2str (1,1)", "cell2str (1,2)"; "cell2str (2,1)", "cell2str (2,2)"});
+%! assert ("cell", class (get (h, "string")));
+%! h = text (0.5, 0.8, "foobar");
+%! set (h, "string", 1:3);
+%! h = text ([0.1, 0.1], [0.3, 0.4], "one string & two objects");
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.5, 0.6], {"one cellstr & two objects"});
+%! assert ("cell", class (get (h(1), "string")));
+%! assert ("cell", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.7, 0.8], {"cellstr 1 object 1", "cellstr 2 object 2"});
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.1, 0.2], ["1st string & 1st object"; "2nd string & 2nd object"]);
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text (0.7, 0.6, "single string");
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.7, 0.5, {"single cell-string"});
+%! assert ("cell", class (get (h, "string")));
+%! xlabel (1:2);
+%! ylabel (1:2);
+%! title (1:2);
+
+%!test
+%! hf = figure ("visible", "off");
+%! unwind_protect
+%! h = text (0.5, 0.3, "char");
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.5, 0.4, ["char row 1"; "char row 2"]);
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.5, 0.6, {"cell2str (1,1)", "cell2str (1,2)"; "cell2str (2,1)", "cell2str (2,2)"});
+%! assert ("cell", class (get (h, "string")));
+%! h = text (0.5, 0.8, "foobar");
+%! set (h, "string", 1:3);
+%! h = text ([0.1, 0.1], [0.3, 0.4], "one string & two objects");
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.5, 0.6], {"one cellstr & two objects"});
+%! assert ("cell", class (get (h(1), "string")));
+%! assert ("cell", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.7, 0.8], {"cellstr 1 object 1", "cellstr 2 object 2"});
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text ([0.1, 0.1], [0.1, 0.2], ["1st string & 1st object"; "2nd string & 2nd object"]);
+%! assert ("char", class (get (h(1), "string")));
+%! assert ("char", class (get (h(2), "string")));
+%! h = text (0.7, 0.6, "single string");
+%! assert ("char", class (get (h, "string")));
+%! h = text (0.7, 0.5, {"single cell-string"});
+%! assert ("cell", class (get (h, "string")));
+%! unwind_protect_cleanup
+%! close (hf);
+%! end_unwind_protect
+
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff