Mercurial > octave
annotate scripts/plot/ishold.m @ 13204:be7bfd59300a
Add tests for scripts/plot
(plot/figure.m, plot/ishold.m, plot/ishold.m, plot/newplot.m): Add tests.
| author | Kai Habel <kai.habel@gmx.de> |
|---|---|
| date | Fri, 23 Sep 2011 22:18:05 +0200 |
| parents | 39ca02387a32 |
| children | eb0ce6ffefb0 |
| rev | line source |
|---|---|
| 11523 | 1 ## Copyright (C) 2005-2011 John W. Eaton |
| 5406 | 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 | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 5406 | 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 | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 5406 | 18 |
| 19 ## -*- texinfo -*- | |
|
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39ca02387a32
Improve docstrings for a number of functions.
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parents:
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20 ## @deftypefn {Command} {} ishold |
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39ca02387a32
Improve docstrings for a number of functions.
Rik <octave@nomad.inbox5.com>
parents:
11563
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21 ## @deftypefnx {Function File} {} ishold (@var{h}) |
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22 ## Return true if the next plot will be added to the current plot, or |
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0d9640d755b1
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parents:
10635
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23 ## false if the plot device will be cleared before drawing the next plot. |
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12546
39ca02387a32
Improve docstrings for a number of functions.
Rik <octave@nomad.inbox5.com>
parents:
11563
diff
changeset
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24 ## |
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39ca02387a32
Improve docstrings for a number of functions.
Rik <octave@nomad.inbox5.com>
parents:
11563
diff
changeset
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25 ## Optionally, operate on the graphics handle @var{h} rather than the current |
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39ca02387a32
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Rik <octave@nomad.inbox5.com>
parents:
11563
diff
changeset
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26 ## plot. |
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27 ## @seealso{hold} |
| 5406 | 28 ## @end deftypefn |
| 29 | |
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30 function retval = ishold (h) |
| 5406 | 31 |
| 32 if (nargin == 0) | |
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33 ax = gca (); |
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34 fig = gcf (); |
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35 elseif (nargin == 1) |
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parents:
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36 if (ishandle (h)) |
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37 if (isfigure (h)) |
| 10549 | 38 ax = get (h, "currentaxes"); |
| 39 if (isempty (ax)) | |
| 40 ax = __go_axes__ (h); | |
| 41 set (h, "currentaxes", ax); | |
| 42 endif | |
| 43 fig = h; | |
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44 elseif (strcmpi (get (h, "type"), "axes")) |
| 10549 | 45 ax = h; |
| 46 fig = get (h, "parent"); | |
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47 else |
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48 error ("ishold: expecting argument to be axes or figure graphics handle"); |
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49 endif |
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parents:
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50 else |
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Print name of function in error() string messages.
Rik <octave@nomad.inbox5.com>
parents:
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51 error ("ishold: expecting argument to be axes or figure graphics handle"); |
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John W. Eaton <jwe@octave.org>
parents:
8920
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changeset
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52 endif |
| 5406 | 53 else |
| 6046 | 54 print_usage (); |
| 5406 | 55 endif |
| 56 | |
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parents:
8920
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57 retval = (strcmpi (get (fig, "nextplot"), "add") |
| 10549 | 58 && strcmpi (get (ax, "nextplot"), "add")); |
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parents:
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59 |
| 5406 | 60 endfunction |
| 13204 | 61 |
| 62 %!test | |
| 63 %! hf = figure ("visible", "off"); | |
| 64 %! unwind_protect | |
| 65 %! l = plot ([0 1]); | |
| 66 %! assert (!ishold); | |
| 67 %! assert (!ishold (gca)); | |
| 68 %! assert (get (gca, "NextPlot"), "replace"); | |
| 69 %! assert (get (hf, "NextPlot"), "add"); | |
| 70 %! hold; | |
| 71 %! assert (ishold); | |
| 72 %! assert (ishold (gca)); | |
| 73 %! assert (get (gca, "NextPlot"), "add"); | |
| 74 %! assert (get (hf, "NextPlot"), "add"); | |
| 75 %! p = fill ([0 1 1], [0 0 1],"black"); | |
| 76 %! assert (length (get (hf, "children")), 1); | |
| 77 %! assert (length (get (gca, "children")), 2); | |
| 78 %! unwind_protect_cleanup | |
| 79 %! close (hf); | |
| 80 %! end_unwind_protect |