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1 ## Copyright (C) 2005, 2006, 2007 John W. Eaton |
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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} {} newplot () |
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21 ## Prepare graphics engine to produce a new plot. This function should |
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22 ## be called at the beginning of all high-level plotting functions. |
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23 ## @end deftypefn |
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24 |
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25 function newplot () |
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26 |
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27 if (nargin == 0) |
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28 __next_line_color__ (true); |
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29 cf = gcf (); |
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30 fnp = get (cf, "nextplot"); |
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31 switch (fnp) |
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32 ## FIXME -- probably we should do more than validate the nextplot |
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33 ## property value... |
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34 case "new" |
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35 case "add" |
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36 case "replacechildren" |
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37 case "replace" |
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38 otherwise |
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39 error ("newplot: unrecognized nextplot property for current figure"); |
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40 endswitch |
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41 ca = gca (); |
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42 anp = get (ca, "nextplot"); |
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43 switch (anp) |
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44 case "add" |
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45 case "replacechildren" |
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46 case "replace" |
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47 __go_axes_init__ (ca, "replace"); |
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48 __request_drawnow__ (); |
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49 otherwise |
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50 error ("newplot: unrecognized nextplot property for current axes"); |
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51 endswitch |
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52 else |
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53 print_usage (); |
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54 endif |
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55 |
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56 endfunction |
