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1 ### Copyright (C) 1996 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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933
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19 |
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20 function polar_int_2 (theta, rho, fmt) |
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21 |
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22 if (nargin != 3) |
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23 usage ("polar_int_2 (theta, rho, fmt)"); |
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24 endif |
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25 |
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26 if (any (imag (theta))) |
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27 theta = real (theta); |
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28 endif |
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29 |
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30 if (any (imag (rho))) |
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31 rho = real (rho); |
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32 endif |
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33 |
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34 if (is_scalar (theta)) |
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35 if (is_scalar (rho)) |
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36 x = rho * cos (theta); |
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37 y = rho * sin (theta); |
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38 plot_2_s_s (x, y, fmt); |
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39 endif |
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40 elseif (is_vector (theta)) |
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41 if (is_vector (rho)) |
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42 if (length (theta) != length (rho)) |
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43 error ("polar: vector lengths must match"); |
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44 endif |
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45 if (rows (rho) == 1) |
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46 rho = rho'; |
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47 endif |
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48 if (rows (theta) == 1) |
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49 theta = theta'; |
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50 endif |
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51 x = rho .* cos (theta); |
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52 y = rho .* sin (theta); |
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53 plot_2_v_v (x, y, fmt); |
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54 elseif (is_matrix (rho)) |
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55 [t_nr, t_nc] = size (theta); |
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56 if (t_nr == 1) |
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57 theta = theta'; |
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58 tmp = t_nr; |
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59 t_nr = t_nc; |
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60 t_nc = tmp; |
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61 endif |
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62 [r_nr, r_nc] = size (rho); |
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63 if (t_nr != r_nr) |
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64 rho = rho'; |
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65 tmp = r_nr; |
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66 r_nr = r_nc; |
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67 r_nc = tmp; |
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68 endif |
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69 if (t_nr != r_nr) |
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70 error ("polar: vector and matrix sizes must match"); |
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71 endif |
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72 x = diag (cos (theta)) * rho; |
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73 y = diag (sin (theta)) * rho; |
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74 plot_2_v_m (x, y, fmt); |
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75 endif |
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76 elseif (is_matrix (theta)) |
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77 if (is_vector (rho)) |
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78 [r_nr, r_nc] = size (rho); |
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79 if (r_nr == 1) |
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80 rho = rho'; |
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81 tmp = r_nr; |
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82 r_nr = r_nc; |
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83 r_nc = tmp; |
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84 endif |
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85 [t_nr, t_nc] = size (theta); |
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86 if (r_nr != t_nr) |
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87 theta = theta'; |
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88 tmp = t_nr; |
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89 t_nr = t_nc; |
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90 t_nc = tmp; |
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91 endif |
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92 if (r_nr != t_nr) |
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93 error ("polar: vector and matrix sizes must match"); |
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94 endif |
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95 diag_r = diag (r); |
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96 x = diag_r * cos (theta); |
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97 y = diag_r * sin (theta); |
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98 plot_2_m_v (x, y, fmt); |
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99 elseif (is_matrix (rho)) |
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100 if (size (rho) != size (theta)) |
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101 error ("polar: matrix dimensions must match"); |
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102 endif |
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103 x = rho .* cos (theta); |
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104 y = rho .* sin (theta); |
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105 plot_2_m_m (x, y, fmt); |
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106 endif |
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107 endif |
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108 |
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109 endfunction |
