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1 ## Copyright (C) 2005, 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 ## Undocumented internal function. |
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20 |
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21 ## __line__ (p, x, y, z) |
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22 ## Create line object from x, y, and z with parent p. |
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23 ## Return handle to line object. |
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24 |
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25 ## Author: jwe |
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26 |
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27 function h = __line__ (p, varargin) |
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28 |
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29 if (nargin < 1) |
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30 print_usage (); |
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31 endif |
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32 |
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33 nvargs = numel (varargin); |
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34 |
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35 if (nvargs > 1 && isnumeric (varargin{1}) && isnumeric (varargin{2})) |
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36 if (nvargs > 2 && isnumeric (varargin{3})) |
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37 num_data_args = 3; |
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38 else |
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39 num_data_args = 2; |
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40 endif |
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41 else |
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42 num_data_args = 0; |
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43 endif |
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44 |
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45 if (rem (nvargs - num_data_args, 2) == 0) |
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46 else |
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47 print_usage ("line"); |
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48 endif |
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49 |
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50 data_args = {}; |
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51 if (num_data_args > 1) |
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52 data_args(1:4) = { "xdata", varargin{1}, "ydata", varargin{2} }; |
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53 if (num_data_args == 3) |
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54 data_args(5:6) = { "zdata", varargin{3} }; |
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55 endif |
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56 endif |
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57 |
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58 other_args = {}; |
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59 if (nvargs > num_data_args) |
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60 other_args = varargin(num_data_args+1:end); |
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61 endif |
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62 |
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63 h = __go_line__ (p, data_args{:}, other_args{:}); |
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64 |
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65 endfunction |
