--- /dev/null
+## Copyright (C) 2007-2012 David Bateman
+## Copyright (C) 2010 Kai Habel
+##
+## 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} {@var{hlist} =} __pie__ (caller, @dots{})
+## Undocumented internal function.
+## @end deftypefn
+
+function hlist = __pie__ (caller, varargin)
+
+ h = varargin{1};
+ x = abs (varargin{2});
+ iarg = 3;
+
+ if (! isvector (x))
+ error ("%s: expecting vector argument", caller);
+ endif
+
+ len = length (x);
+
+ have_explode = false;
+ have_labels = false;
+
+ while (iarg <= nargin - 1)
+ arg = varargin{iarg++};
+ if (iscell (arg))
+ labels = arg;
+ have_labels = true;
+ if (numel (x) != numel (labels))
+ error ("%s: mismatch in number of labels and data", caller);
+ endif
+ elseif (isnumeric (arg) || islogical (arg))
+ explode = arg;
+ have_explode = true;
+ if (! size_equal (x, explode))
+ error ("%s: mismatch in number of elements in explode and data",
+ caller);
+ endif
+ else
+ error ("%s: %s is invalid as an optional argument", caller, class (arg));
+ endif
+ endwhile
+
+ if (! have_explode)
+ explode = zeros (size (x));
+ endif
+
+ normalize = true;
+ if (sum (x(:)) < 1)
+ normalize = false;
+ endif
+
+ if (! have_labels)
+ if (normalize)
+ xp = round (100 * x ./ sum (x));
+ else
+ xp = round (100 * x);
+ endif
+ for i = 1:len
+ labels{i} = sprintf ("%d%%", xp(i));
+ endfor
+ endif
+
+ hlist = [];
+ refinement = 90;
+ phi = 0:refinement:360;
+ if (normalize)
+ xphi = cumsum (x / sum (x) * 360);
+ else
+ xphi = cumsum (x * 360);
+ endif
+
+ for i = 1:len
+ if (i == 1)
+ xn = 0 : 360 / refinement : xphi(i);
+ else
+ xn = xphi(i-1) : 360 / refinement : xphi(i);
+ endif
+
+ if (xn(end) != xphi(i))
+ xn = [xn, xphi(i)];
+ endif
+
+ xn2 = (xn(1) + xn(end)) / 2;
+ if (explode (i))
+ xoff = - 0.1 * sind (xn2);
+ yoff = 0.1 * cosd (xn2);
+ else
+ xoff = 0;
+ yoff = 0;
+ endif
+ xt = - 1.2 * sind (xn2);
+ yt = 1.2 * cosd (xn2);
+
+ if (len == 1)
+ set (h, "clim", [1, 2]);
+ else
+ set (h, "clim", [1, len]);
+ endif
+
+ if (strncmp (caller, "pie3", 4))
+ ln = length (xn);
+ zlvl = 0.35;
+ sx = repmat (xoff + [0, - sind(xn), 0], [2 1]);
+ sy = repmat (yoff + [0, cosd(xn), 0], [2 1]);
+ sz = [zeros(1, ln + 2); zlvl * ones(1, ln + 2)];
+ sc = i * ones (size (sz));
+
+ hlist = [hlist;
+ patch(xoff + [0, - sind(xn)], yoff + [0, cosd(xn)], zeros (1, ln + 1), i);
+ surface(sx, sy, sz, sc);
+ patch(xoff + [0, - sind(xn)], yoff + [0, cosd(xn)], zlvl * ones (1, ln + 1), i);
+ text(xt, yt, zlvl, labels{i})];
+
+ elseif (strncmp (caller, "pie", 3))
+ if (xt > 0)
+ align = "left";
+ else
+ align = "right";
+ endif
+
+ hlist = [hlist; patch(xoff + [0, - sind(xn)], yoff + [0, cosd(xn)], i);
+ text(xt, yt, labels{i}, "horizontalalignment", align)];
+
+ else
+ error ("__pie__: unknown caller `%s'", caller);
+ endif
+ endfor
+
+ addlistener(gca, "view", {@update_text_pos, hlist});
+
+ if (strncmp (caller, "pie3", 4))
+ axis ([-1.25, 1.25, -1.25, 1.25, -0.05, 0.4], "equal", "off");
+ view (-37.5, 30);
+ elseif (strncmp (caller, "pie", 3))
+ axis ([-1.5, 1.5, -1.5, 1.5], "square", "off");
+ endif
+endfunction
+
+function update_text_pos (all_handles)
+ ## Text objects in the foreground should be at the base level.
+ ## Text objects in the background should be at the top level.
+ ## Text objects on the right side should be aligned to the right
+ ## and on the left side to the left.
+ tobj = findobj (all_handles, "type", "text");
+
+ ## check if we are called from pie3
+ s = findobj (all_handles, "type", "surface");
+ is_pie3 = false;
+ if (length (s) > 0)
+ is_pie3 = true;
+ endif
+
+ if (length (tobj) > 0)
+ ax = get (tobj(1), "parent");
+ azel = get (ax, "view");
+ pos = get (tobj, "position");
+ if (iscell (pos))
+ pos = cell2mat (pos);
+ endif
+ phi = atand (pos(:,1) ./ pos(:,2));
+ [theta, r] = cart2pol (pos(:,1), pos(:,2));
+ theta *= 180/pi;
+ theta -= azel(1);
+ theta = mod (theta, 360);
+ ud_mask = (theta > 180);
+ lr_mask = (theta > 90) & (theta < 270);
+ for i = 1 : length (tobj)
+ if (is_pie3)
+ if (ud_mask(i))
+ set (tobj(i), "position", [pos(i,1), pos(i,2), -0.05]);
+ else
+ set (tobj(i), "position", [pos(i,1), pos(i,2), 0.40]);
+ endif
+ endif
+
+ if (lr_mask(i))
+ set (tobj(i), "horizontalalignment", "right");
+ else
+ set (tobj(i), "horizontalalignment", "left");
+ endif
+ endfor
+ endif
+endfunction
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff