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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 ## 02110-1301, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} __plt2__ (@var{h}, @var{x1}, @var{x2}, @var{options}) |
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22 ## @end deftypefn |
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23 |
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24 ## Author: jwe |
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25 |
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26 function retval = __plt2__ (h, x1, x2, options) |
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27 |
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28 if (nargin < 3 || nargin > 4) |
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29 print_usage (); |
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30 endif |
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31 |
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32 if (nargin < 4 || isempty (options)) |
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33 options = __default_plot_options__ (); |
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34 endif |
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35 |
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36 if (! isstruct (options)) |
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37 error ("__plt1__: options must be a struct array"); |
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38 endif |
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39 |
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40 if (any (any (imag (x1)))) |
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41 x1 = real (x1); |
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42 endif |
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43 |
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44 if (any (any (imag (x2)))) |
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45 x2 = real (x2); |
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46 endif |
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47 |
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48 h_set = false; |
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49 if (isscalar (x1)) |
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50 if (isscalar (x2)) |
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51 retval = __plt2ss__ (h, x1, x2, options); |
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52 else |
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53 error ("__plt2__: invalid data for plotting"); |
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54 endif |
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55 elseif (isvector (x1)) |
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56 if (isvector (x2)) |
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57 retval = __plt2vv__ (h, x1, x2, options); |
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58 elseif (ismatrix (x2)) |
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59 retval = __plt2vm__ (h, x1, x2, options); |
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60 else |
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61 error ("__plt2__: invalid data for plotting"); |
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62 endif |
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63 elseif (ismatrix (x1)) |
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64 if (isvector (x2)) |
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65 retval = __plt2mv__ (h, x1, x2, options); |
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66 elseif (ismatrix (x2)) |
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67 retval = __plt2mm__ (h, x1, x2, options); |
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68 else |
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69 error ("__plt2__: invalid data for plotting"); |
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70 endif |
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71 elseif (isempty (x1) && isempty (x2)) |
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72 ## FIXME -- should we do nothing, or should we create a line object |
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73 ## with empty xdata and ydata properties? |
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74 else |
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75 error ("__plt2__: invalid data for plotting"); |
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76 endif |
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77 |
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78 endfunction |
