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annotate scripts/plot/private/__next_line_style__.m @ 16108:3cce6b4e0f7c

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Update gnuplot plotting scripts for faster or more modern synta * scripts/plot/__gnuplot_drawnow__.m: Use default values in function header. Check number of arguments to function immediately. Use single quotes to avoid lots of backslashing. Use strtok() to replace hand-coded functionality. Initialize persistent variables in declaration (10% faster). * scripts/plot/gnuplot_binary.in: Replace tabs with spaces. Simplify input validation. Add %!test block. * scripts/plot/private/__gnuplot_get_var__.m: Use default values in function header. Use "*char" in fread to automatically convert to char variable. * scripts/plot/private/__gnuplot_ginput__.m: Check immediately for required version of gnuplot. Use "*char" in fread to automatically convert to char variable. Use fputs in place of fprintf to match rest of code. * scripts/plot/private/__gnuplot_has_feature__.m: Initialize persistent varibles in declaration. Use false () rather than logical (zeros()) construction. * scripts/plot/private/__gnuplot_has_terminal__.m: Use strtok() to replace hand-coded functionality * scripts/plot/private/__gnuplot_print__.m: Replace sprintf calls with direct string char matrix concatenation (2.4x faster) where possible. Replace for loop with multiple argument form of set(). Use single quotes to avoid lots of backslashing. * scripts/plot/private/__gnuplot_version__.m: Use single quotes to avoid lots of backslashing.
author Rik <rik@octave.org>
date Mon, 25 Feb 2013 21:01:36 -0800
parents 72c96de7a403
children 1de4ec2a856d
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2010-2012 David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {@var{style} =} __next_line_style__ (@var{reset})
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21 ## Undocumented internal function.
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22 ## @end deftypefn
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23
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24 ## Return the next line style in the rotation.
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25
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26
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27 function [linestyle, marker] = __next_line_style__ (reset)
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28
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29 persistent style_rotation;
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30 persistent num_styles;
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31 persistent style_index;
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32
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33 if (nargin < 2)
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34 if (nargin == 1)
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35 if (ischar (reset) && strncmp (reset, "incr", 4))
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36 if (isempty (style_rotation))
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37 error ("__next_line_style__: style_rotation not initialized");
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38 elseif (++style_index > num_styles)
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39 style_index = 1;
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40 endif
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41 elseif (reset || isempty (style_rotation))
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42 style_rotation = get (gca (), "linestyleorder");
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43 if (ischar (style_rotation))
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44 style_rotation = strsplit (style_rotation, "|");
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45 endif
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46 num_styles = length (style_rotation);
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47 style_index = 1;
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48 endif
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49 elseif (! isempty (style_rotation))
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50 options = __pltopt__ ("__next_line_style__",
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51 style_rotation (style_index));
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52 linestyle = options.linestyle;
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53 marker = options.marker;
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54 else
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55 error ("__next_line_style__: style_rotation not initialized");
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56 endif
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57 else
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58 print_usage ();
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59 endif
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60
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61 endfunction