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1 ## Copyright (C) 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} {@var{h} =} text (@var{x}, @var{y}, @var{label}) |
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21 ## @deftypefnx {Function File} {@var{h} =} text (@var{x}, @var{y}, @var{z}, @var{label}) |
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22 ## @deftypefnx {Function File} {@var{h} =} text (@var{x}, @var{y}, @var{label}, @var{p1}, @var{v1}, @dots{}) |
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23 ## @deftypefnx {Function File} {@var{h} =} text (@var{x}, @var{y}, @var{z}, @var{label}, @var{p1}, @var{v1}, @dots{}) |
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24 ## Create a text object with text @var{label} at position @var{x}, |
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25 ## @var{y}, @var{z} on the current axes. Property-value pairs following |
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26 ## @var{label} may be used to specify the appearance of the text. |
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27 ## @end deftypefn |
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28 |
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29 ## Author: jwe |
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30 |
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31 function h = text (varargin) |
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32 |
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33 nargs = nargin; |
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34 offset = 0; |
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35 |
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36 if (nargs > 2 && isnumeric (varargin{1}) && isnumeric (varargin{2})) |
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37 x = varargin{1}; |
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38 y = varargin{2}; |
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39 offset = 3; |
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40 |
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41 if (nargin > 3 && isnumeric (varargin{3})) |
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42 z = varargin{3}; |
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43 offset = 4; |
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44 else |
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45 z = zeros (size (x)); |
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46 offset = 3; |
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47 endif |
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48 |
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49 label = varargin{offset}; |
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50 if (ischar (label) || iscellstr (label)) |
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51 varargin(1:offset) = []; |
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52 if (ischar (label)) |
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53 label = cellstr (label); |
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54 endif |
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55 n = numel (label); |
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56 nx = numel (x); |
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57 ny = numel (y); |
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58 nz = numel (z); |
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59 else |
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60 error ("text: expecting label to be a character string or cell array of character strings"); |
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61 endif |
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62 else |
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63 x = y = z = 0; |
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64 nx = ny = nz = 1; |
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65 label = {""}; |
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66 n = 1; |
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67 endif |
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68 |
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69 if (rem (numel (varargin), 2) == 0) |
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70 |
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71 if (nx == ny && nx == nz) |
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72 pos = [x(:), y(:), z(:)]; |
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73 ca = gca (); |
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74 tmp = zeros (n, 1); |
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75 if (n == 1) |
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76 label = label{1}; |
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77 for i = 1:nx |
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78 tmp(i) = __go_text__ (ca, "string", label, |
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79 "position", pos(i,:), |
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80 varargin{:}); |
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81 endfor |
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82 __request_drawnow__ (); |
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83 elseif (n == nx) |
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84 for i = 1:nx |
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85 tmp(i) = __go_text__ (ca, "string", label{i}, |
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86 "position", pos(i,:), |
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87 varargin{:}); |
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88 endfor |
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89 __request_drawnow__ (); |
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90 else |
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91 error ("text: dimension mismatch for coordinates and label"); |
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92 endif |
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93 else |
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94 error ("text: dimension mismatch for coordinates"); |
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95 endif |
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96 |
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97 if (nargout > 0) |
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98 h = tmp; |
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99 endif |
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100 |
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101 else |
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102 print_usage (); |
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103 endif |
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104 |
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105 endfunction |
