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1 ## Copyright (C) 1996, 1997 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 2, or (at your option) |
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8 ## 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, write to the Free |
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, USA. |
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19 |
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20 ## usage: function __plt2vm__ (x, y, fmt) |
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21 |
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22 ## Author: jwe |
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23 |
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24 function __plt2vm__ (x, y, fmt) |
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25 |
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26 if (nargin < 2 || nargin > 3) |
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27 msg = sprintf ("__plt2vm__ (x, y)\n"); |
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28 msg = sprintf ("%s __plt2vm__ (x, y, fmt)", msg); |
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29 usage (msg); |
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30 elseif (nargin == 2 || fmt == "") |
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31 fmt = " "; ## Yes, this is intentionally not an empty string! |
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32 endif |
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33 |
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34 [x_nr, x_nc] = size (x); |
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35 [y_nr, y_nc] = size (y); |
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36 |
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37 if (x_nr == 1) |
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38 x = x'; |
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39 tmp = x_nr; |
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40 x_nr = x_nc; |
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41 x_nc = tmp; |
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42 endif |
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43 |
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44 if (x_nr == y_nr) |
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45 1; |
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46 elseif (x_nr == y_nc) |
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47 y = y'; |
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48 tmp = y_nr; |
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49 y_nr = y_nc; |
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50 y_nc = tmp; |
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51 else |
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52 error ("__plt2vm__: matrix dimensions must match"); |
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53 endif |
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54 |
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55 k = 1; |
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56 fmt_nr = rows (fmt); |
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57 if (y_nc > 0) |
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58 tmp = [x, y]; |
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59 cmd = sprintf ("gplot tmp(:,%d:%d:%d) %s", 1, x_nc, x_nc+1, |
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60 deblank (fmt (k, :))); |
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61 if (k < fmt_nr) |
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62 k++; |
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63 endif |
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64 for i = 2:y_nc |
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65 cmd = sprintf ("%s, tmp(:,%d:%d:%d) %s", cmd, 1, i, i+1, |
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66 deblank (fmt (k, :))); |
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67 if (k < fmt_nr) |
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68 k++; |
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69 endif |
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70 endfor |
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71 eval (cmd); |
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72 else |
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73 error ("__plt2vm__: arguments must be a matrices"); |
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74 endif |
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75 |
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76 endfunction |
