Mercurial > octave-nkf
annotate scripts/plot/private/__scatter__.m @ 10078:2f435ed48143
optimize scatter plots
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Sun, 10 Jan 2010 21:34:30 +0100 |
| parents | 1aeb39118764 |
| children | 28af9aa6f9ed |
| rev | line source |
|---|---|
| 8920 | 1 ## Copyright (C) 2007, 2008, 2009 David Bateman |
| 7189 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 9 ## | |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 16 ## along with Octave; see the file COPYING. If not, see | |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 18 | |
|
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {@var{hg} =} __scatter__ (@dots{}) |
| 7189 | 21 ## Undocumented internal function. |
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22 ## @end deftypefn |
| 7189 | 23 |
| 8257 | 24 function hg = __scatter__ (varargin) |
| 7191 | 25 |
| 26 h = varargin{1}; | |
| 27 nd = varargin{2}; | |
| 28 fcn = varargin{3}; | |
| 29 x = varargin{4}(:); | |
| 30 y = varargin{5}(:); | |
| 7189 | 31 istart = 6; |
| 7191 | 32 |
| 7189 | 33 if (nd == 3) |
| 7191 | 34 z = varargin{6}(:); |
| 7421 | 35 idx = isnan(x) | isnan (y) | isnan (z); |
| 36 x (idx) = []; | |
| 37 y (idx) = []; | |
| 38 z (idx) = []; | |
| 7189 | 39 istart = 7; |
| 40 else | |
| 7421 | 41 idx = isnan(x) | isnan (y); |
| 42 x (idx) = []; | |
| 43 y (idx) = []; | |
| 7191 | 44 z = zeros (length (x), 0); |
| 7189 | 45 endif |
| 46 | |
| 47 firstnonnumeric = Inf; | |
| 48 for i = istart:nargin | |
| 7191 | 49 if (! isnumeric (varargin{i})) |
| 7189 | 50 firstnonnumeric = i; |
| 51 break; | |
| 52 endif | |
| 53 endfor | |
| 54 | |
| 7235 | 55 if (istart < nargin && firstnonnumeric > istart) |
| 7191 | 56 s = varargin{istart}; |
| 7189 | 57 if (isempty (s)) |
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58 s = 6; |
| 7189 | 59 endif |
| 60 else | |
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61 s = 6; |
| 7189 | 62 endif |
| 63 | |
| 64 if (istart < nargin && firstnonnumeric > istart + 1) | |
| 7191 | 65 c = varargin{istart + 1}; |
| 7189 | 66 if (isvector (c)) |
| 10078 | 67 if (columns (c) != 3) |
| 8257 | 68 c = c(:); |
| 69 endif | |
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70 elseif (isempty (c)) |
| 10078 | 71 c = __next_line_color__(); |
| 7189 | 72 endif |
| 7191 | 73 elseif (firstnonnumeric == istart + 1 && ischar (varargin{istart + 1})) |
| 7189 | 74 c = varargin{istart + 1}; |
| 75 firstnonnumeric++; | |
| 76 else | |
| 10078 | 77 c = __next_line_color__(); |
| 7189 | 78 endif |
| 79 | |
| 80 newargs = {}; | |
| 81 filled = false; | |
| 82 have_marker = false; | |
| 83 marker = "o"; | |
| 84 iarg = firstnonnumeric; | |
| 85 while (iarg <= nargin) | |
| 7191 | 86 arg = varargin{iarg++}; |
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87 if (ischar (arg) && strncmpi (arg, "filled", 6)) |
| 7189 | 88 filled = true; |
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89 elseif ((ischar (arg) || iscell (arg)) && ! have_marker) |
| 8257 | 90 [linespec, valid] = __pltopt__ (fcn, arg, false); |
| 7189 | 91 if (valid) |
| 92 have_marker = true; | |
| 93 marker = linespec.marker; | |
| 94 if (strncmp (marker, "none", 4)) | |
| 95 marker = "o"; | |
| 96 endif | |
| 97 else | |
| 8257 | 98 error ("%s: invalid linespec", fcn); |
| 7189 | 99 endif |
| 100 else | |
| 101 newargs{end+1} = arg; | |
| 102 if (iarg <= nargin) | |
| 103 newargs{end+1} = varagin{iarg++}; | |
| 104 endif | |
| 105 endif | |
| 106 endwhile | |
| 107 | |
| 8257 | 108 hg = hggroup (); |
| 109 newargs = __add_datasource__ (fcn, hg, {"x", "y", "z", "c", "size"}, | |
| 110 newargs{:}); | |
| 111 | |
| 112 addproperty ("xdata", hg, "data", x); | |
| 113 addproperty ("ydata", hg, "data", y); | |
| 114 addproperty ("zdata", hg, "data", z); | |
| 10078 | 115 addproperty ("cdata", hg, "data", c); |
| 116 addproperty ("sizedata", hg, "data", s); | |
| 8257 | 117 addlistener (hg, "xdata", @update_data); |
| 118 addlistener (hg, "ydata", @update_data); | |
| 119 addlistener (hg, "zdata", @update_data); | |
| 120 addlistener (hg, "cdata", @update_data); | |
| 121 addlistener (hg, "sizedata", @update_data); | |
| 122 | |
| 10078 | 123 if (numel (x) <= 20) |
| 124 | |
| 125 ## For small number of points, we'll construct an object for each point. | |
| 126 | |
| 127 if (numel (s) == 1) | |
| 128 s = repmat (s, numel(x), 1); | |
| 129 endif | |
| 130 | |
| 131 if (ischar (c)) | |
| 132 for i = 1 : numel (x) | |
| 133 h = __go_line__ (hg, "xdata", x(i), "ydata", y(i), "zdata", z(i,:), | |
| 134 "color", c, "marker", marker, | |
| 135 "markersize", s(i), "linestyle", "none"); | |
| 136 if (filled) | |
| 137 set(h, "markerfacecolor", c); | |
| 138 endif | |
| 139 endfor | |
| 140 else | |
| 141 if (rows (c) == 1) | |
| 142 c = repmat (c, numel (x), 1); | |
| 8257 | 143 endif |
| 10078 | 144 |
| 145 for i = 1 : numel (x) | |
| 146 h = __go_line__ (hg, "xdata", x(i), "ydata", y(i), "zdata", z(i,:), | |
| 147 "color", c(i,:), "marker", marker, | |
| 148 "markersize", s(i), "linestyle", "none"); | |
| 149 if (filled) | |
| 150 set(h, "markerfacecolor", c(i,:)); | |
| 151 endif | |
| 152 endfor | |
| 153 endif | |
| 154 | |
| 8257 | 155 else |
| 10078 | 156 |
| 157 ## For larger numbers of points, we split the points by common color. | |
| 158 | |
| 159 vert = [x, y, z]; | |
| 160 | |
| 161 if (ischar (c) || rows (c) == 1) | |
| 162 h = render_size_color (hg, vert, s, c, marker, filled); | |
| 163 else | |
| 164 [cc, idx] = unique_idx (c, "rows"); | |
| 165 if (isscalar (s)) | |
| 166 for i = 1:rows (x) | |
| 167 h = render_size_color (hg, vert(idx{i},:), s, cc(i,:), marker, filled); | |
| 168 endfor | |
| 169 else | |
| 170 for i = 1:rows (x) | |
| 171 h = render_size_color (hg, vert(idx{i},:), s(idx{i}), cc(i,:), marker, filled); | |
| 172 endfor | |
| 8257 | 173 endif |
| 7189 | 174 endif |
| 10078 | 175 |
| 176 endif | |
| 177 | |
| 178 if (! ischar (c)) | |
| 179 ax = get (hg, "parent"); | |
| 180 clim = get (ax, "clim"); | |
| 181 if (min(c(:)) < clim(1)) | |
| 182 clim(1) = min(c(:)); | |
| 183 set (ax, "clim", clim); | |
| 184 endif | |
| 185 if (max(c(:)) > clim(2)) | |
| 186 set (ax, "clim", [clim(1), max(c(:))]); | |
| 187 endif | |
| 7189 | 188 endif |
| 189 | |
| 8257 | 190 addproperty ("linewidth", hg, "patchlinewidth", 0.5); |
| 191 addproperty ("marker", hg, "patchmarker", marker); | |
| 192 if (numel (x) > 0) | |
| 193 addproperty ("markerfacecolor", hg, "patchmarkerfacecolor", "none"); | |
| 194 addproperty ("markeredgecolor", hg, "patchmarkeredgecolor", "none"); | |
| 195 else | |
| 196 addproperty ("markerfacecolor", hg, "patchmarkerfacecolor", | |
| 197 get (h, "markerfacecolor")); | |
| 198 addproperty ("markeredgecolor", hg, "patchmarkeredgecolor", | |
| 10078 | 199 get (h, "color")); |
| 8257 | 200 endif |
| 201 addlistener (hg, "linewidth", @update_props); | |
| 202 addlistener (hg, "marker", @update_props); | |
| 203 addlistener (hg, "markerfacecolor", @update_props); | |
| 204 addlistener (hg, "markeredgecolor", @update_props); | |
| 205 | |
| 206 if (! isempty (newargs)) | |
| 207 set (hg, newargs{:}) | |
| 208 endif | |
| 209 | |
| 7189 | 210 endfunction |
| 8257 | 211 |
| 10078 | 212 function [y, idx] = unique_idx (x, byrows) |
| 213 if (nargin == 2) | |
| 214 [xx, idx] = sortrows (x); | |
| 215 n = rows (x); | |
| 216 jdx = find (any (xx(1:n-1,:) != xx(2:n,:), 2)); | |
| 217 jdx(n) = n; | |
| 218 y = xx(jdx,:); | |
| 219 else | |
| 220 [xx, idx] = sort (x); | |
| 221 n = length (x); | |
| 222 jdx = find (xx(1:n-1,:) != xx(2:n,:)); | |
| 223 jdx(n) = n; | |
| 224 y = xx(jdx); | |
| 225 endif | |
| 226 | |
| 227 if (nargin == 2 || columns (x) == 1) | |
| 228 idx = mat2cell (idx, diff ([0; jdx]), 1); | |
| 229 else | |
| 230 idx = mat2cell (idx, 1, diff ([0, jdx])); | |
| 231 endif | |
| 232 endfunction | |
| 233 | |
| 234 function h = render_size_color(hg, vert, s, c, marker, filled) | |
| 235 if (isscalar (s)) | |
| 236 x = vert(:,1); | |
| 237 y = vert(:,2); | |
| 238 z = vert(:,3:end); | |
| 239 h = __go_line__ (hg, "xdata", x, "ydata", y, "zdata", z, | |
| 240 "color", c, "marker", marker, | |
| 241 "markersize", s, "linestyle", "none"); | |
| 242 if (filled) | |
| 243 set(h, "markerfacecolor", c); | |
| 244 endif | |
| 245 else | |
| 246 ## FIXME: round the size to one decimal place. It's not quite right, though. | |
| 247 [ss, idx] = unique_idx (ceil (s*10) / 10); | |
| 248 for i = 1:rows (ss) | |
| 249 h = render_size_color (hg, vert(idx{i},:), ss(i), c, marker, filled); | |
| 250 endfor | |
| 251 endif | |
| 252 endfunction | |
| 253 | |
| 8257 | 254 function update_props (h, d) |
| 255 lw = get (h, "linewidth"); | |
| 256 m = get (h, "marker"); | |
| 257 fc = get (h, "markerfacecolor"); | |
| 258 ec = get (h, "markeredgecolor"); | |
| 259 kids = get (h, "children"); | |
| 260 | |
| 261 for i = 1 : numel (kids) | |
| 262 set (kids (i), "linewidth", lw, "marker", m, "markerfacecolor", fc, | |
| 263 "edgecolor", ec) | |
| 264 endfor | |
| 265 endfunction | |
| 266 | |
| 267 function update_data (h, d) | |
| 268 x1 = get (h, "xdata"); | |
| 269 y1 = get (h, "ydata"); | |
| 270 z1 = get (h, "zdata"); | |
| 271 c1 = get (h, "cdata"); | |
| 272 if (!ischar (c1) && rows (c1) == 1) | |
| 273 c1 = repmat (c1, numel (x1), 1); | |
| 274 endif | |
| 275 size1 = get (h, "sizedata"); | |
| 276 if (numel (size1) == 1) | |
| 277 size1 = repmat (size1, numel (x1), 1); | |
| 278 endif | |
| 279 hlist = get (h, "children"); | |
| 280 if (ischar (c1)) | |
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281 if (isempty (z1)) |
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282 for i = 1 : length (hlist) |
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283 set (hlist(i), "vertices", [x1(i), y1(i)], "cdata", c1, |
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284 "markersize", size1(i)); |
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285 endfor |
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286 else |
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287 for i = 1 : length (hlist) |
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288 set (hlist(i), "vertices", [x1(i), y1(i), z1(i)], "cdata", c1, |
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289 "markersize", size1(i)); |
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290 endfor |
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291 endif |
| 8257 | 292 else |
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293 if (isempty (z1)) |
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294 for i = 1 : length (hlist) |
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295 set (hlist(i), "vertices", [x1(i), y1(i)], "cdata", |
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296 reshape(c1(i,:),[1, size(c1)(2:end)]), "markersize", size1(i)); |
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297 endfor |
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298 else |
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299 for i = 1 : length (hlist) |
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300 set (hlist(i), "vertices", [x1(i), y1(i), z1(i)], "cdata", |
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301 reshape(c1(i,:),[1, size(c1)(2:end)]), "markersize", size1(i)); |
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302 endfor |
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303 endif |
| 8257 | 304 endif |
| 305 endfunction |