annotate scripts/plot/polar.m @ 14868:5d3a684236b0

maint: Use Octave coding conventions for cuddling parentheses in scripts directory * lin2mu.m, loadaudio.m, wavread.m, accumarray.m, bicubic.m, celldisp.m, colon.m, cplxpair.m, dblquad.m, divergence.m, genvarname.m, gradient.m, int2str.m, interp1.m, interp1q.m, interp2.m, interpn.m, loadobj.m, nthargout.m, __isequal__.m, __splinen__.m, quadgk.m, quadl.m, quadv.m, rat.m, rot90.m, rotdim.m, saveobj.m, subsindex.m, triplequad.m, delaunay3.m, griddata.m, inpolygon.m, tsearchn.m, voronoi.m, get_first_help_sentence.m, which.m, gray2ind.m, pink.m, dlmwrite.m, strread.m, textread.m, textscan.m, housh.m, ishermitian.m, issymmetric.m, krylov.m, logm.m, null.m, rref.m, compare_versions.m, copyfile.m, dump_prefs.m, edit.m, fileparts.m, getappdata.m, isappdata.m, movefile.m, orderfields.m, parseparams.m, __xzip__.m, rmappdata.m, setappdata.m, swapbytes.m, unpack.m, ver.m, fminbnd.m, fminunc.m, fsolve.m, glpk.m, lsqnonneg.m, qp.m, sqp.m, configure_make.m, copy_files.m, describe.m, get_description.m, get_forge_pkg.m, install.m, installed_packages.m, is_architecture_dependent.m, load_package_dirs.m, print_package_description.m, rebuild.m, repackage.m, save_order.m, shell.m, allchild.m, ancestor.m, area.m, axes.m, axis.m, clabel.m, close.m, colorbar.m, comet.m, comet3.m, contour.m, cylinder.m, ezmesh.m, ezsurf.m, findobj.m, fplot.m, hist.m, isocolors.m, isonormals.m, isosurface.m, isprop.m, legend.m, mesh.m, meshz.m, pareto.m, pcolor.m, peaks.m, plot3.m, plotmatrix.m, plotyy.m, polar.m, print.m, __add_datasource__.m, __add_default_menu__.m, __axes_limits__.m, __bar__.m, __clabel__.m, __contour__.m, __errcomm__.m, __errplot__.m, __ezplot__.m, __file_filter__.m, __fltk_print__.m, __ghostscript__.m, __gnuplot_print__.m, __go_draw_axes__.m, __go_draw_figure__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m, __pie__.m, __plt__.m, __print_parse_opts__.m, __quiver__.m, __scatter__.m, __stem__.m, __tight_eps_bbox__.m, __uigetdir_fltk__.m, __uigetfile_fltk__.m, __uiputfile_fltk__.m, quiver.m, quiver3.m, rectangle.m, refreshdata.m, ribbon.m, scatter.m, semilogy.m, shading.m, slice.m, subplot.m, surface.m, surfl.m, surfnorm.m, text.m, uigetfile.m, uiputfile.m, whitebg.m, deconv.m, mkpp.m, pchip.m, polyaffine.m, polyder.m, polygcd.m, polyout.m, polyval.m, ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, splinefit.m, addpref.m, getpref.m, setpref.m, ismember.m, setxor.m, arch_fit.m, arch_rnd.m, arch_test.m, autoreg_matrix.m, diffpara.m, fftconv.m, filter2.m, hanning.m, hurst.m, periodogram.m, triangle_sw.m, sinc.m, spectral_xdf.m, spencer.m, stft.m, synthesis.m, unwrap.m, yulewalker.m, bicgstab.m, gmres.m, pcg.m, pcr.m, __sprand_impl__.m, speye.m, spfun.m, sprandn.m, spstats.m, svds.m, treelayout.m, treeplot.m, bessel.m, factor.m, legendre.m, perms.m, primes.m, magic.m, toeplitz.m, corr.m, cov.m, mean.m, median.m, mode.m, qqplot.m, quantile.m, ranks.m, zscore.m, logistic_regression_likelihood.m, bartlett_test.m, chisquare_test_homogeneity.m, chisquare_test_independence.m, kolmogorov_smirnov_test.m, run_test.m, u_test.m, wilcoxon_test.m, z_test.m, z_test_2.m, bin2dec.m, dec2base.m, mat2str.m, strcat.m, strchr.m, strjust.m, strtok.m, substr.m, untabify.m, assert.m, demo.m, example.m, fail.m, speed.m, test.m, now.m: Use Octave coding conventions for cuddling parentheses in scripts directory.
author Rik <octave@nomad.inbox5.com>
date Tue, 17 Jul 2012 07:08:39 -0700
parents 460a3c6d8bf1
children 64e7bb01fce2
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rev   line source
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1 ## Copyright (C) 1993-2012 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} {} polar (@var{theta}, @var{rho})
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21 ## @deftypefnx {Function File} {} polar (@var{theta}, @var{rho}, @var{fmt})
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22 ## @deftypefnx {Function File} {} polar (@var{h}, @dots{})
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23 ## @deftypefnx {Function File} {@var{h} =} polar (@dots{})
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24 ## Create a two-dimensional plot from polar coordinates @var{theta} and
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25 ## @var{rho}.
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26 ##
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27 ## The optional argument @var{fmt} specifies the line format.
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28 ##
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29 ## The optional return value @var{h} is a graphics handle to the created plot.
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30 ##
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31 ## @seealso{plot}
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32 ## @end deftypefn
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33
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34 ## Author: jwe
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35
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36 function retval = polar (varargin)
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37
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38 [h, varargin, nargs] = __plt_get_axis_arg__ ("polar", varargin{:});
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39
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40 if (nargs < 1)
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41 print_usage ();
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42 endif
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43
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44 oldh = gca ();
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45 unwind_protect
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46 axes (h);
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47 newplot ();
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48
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49 if (nargs == 3)
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50 if (! ischar (varargin{3}))
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51 error ("polar: third argument must be a string");
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52 endif
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53 tmp = __plr2__ (h, varargin{:});
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54 maxr = max (varargin {2} (:));
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55 elseif (nargs == 2)
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56 if (ischar (varargin{2}))
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57 tmp = __plr1__ (h, varargin{:});
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58 if (iscomplex (varargin{1}))
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59 maxr = max (imag (varargin{1})(:));
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60 else
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61 maxr = max (varargin{1}(:));
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62 endif
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63 else
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64 fmt = "";
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65 tmp = __plr2__ (h, varargin{:}, fmt);
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66 maxr = max (varargin {2} (:));
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67 endif
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68 elseif (nargs == 1)
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69 fmt = "";
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70 tmp = __plr1__ (h, varargin{:}, fmt);
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71 if (iscomplex (varargin{1}))
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72 maxr = max (imag (varargin{1})(:));
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73 else
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74 maxr = max (varargin{1}(:));
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75 endif
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76 else
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77 print_usage ();
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78 endif
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79
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80 set (h, "xlim", [-maxr, maxr], "ylim", [-maxr, maxr],
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81 "xaxislocation", "zero", "yaxislocation", "zero",
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82 "plotboxaspectratio", [1, 1, 1]);
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83
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84 if (nargout > 0)
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85 retval = tmp;
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86 endif
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87 unwind_protect_cleanup
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88 axes (oldh);
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89 end_unwind_protect
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90
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91 endfunction
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92
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93 function retval = __plr1__ (h, theta, fmt)
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94
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95 if (nargin != 3)
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96 print_usage ();
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97 endif
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98
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99 [nr, nc] = size (theta);
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100 if (nr == 1)
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101 theta = theta';
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102 tmp = nr;
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103 nr = nc;
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104 nc = tmp;
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105 endif
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106 theta_i = imag (theta);
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107 if (any (theta_i))
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108 rho = theta_i;
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109 theta = real (theta);
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110 else
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111 rho = theta;
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112 theta = (1:nr)';
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113 endif
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114
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115 retval = __plr2__ (h, theta, rho, fmt);
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116
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117 endfunction
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118
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119 function retval = __plr2__ (h, theta, rho, fmt)
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diff changeset
120
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diff changeset
121 if (nargin != 4)
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122 print_usage ();
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123 endif
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diff changeset
124
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125 if (any (imag (theta)))
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126 theta = real (theta);
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127 endif
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128
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129 if (any (imag (rho)))
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130 rho = real (rho);
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131 endif
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132
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133 if (isscalar (theta))
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134 if (isscalar (rho))
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135 x = rho * cos (theta);
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136 y = rho * sin (theta);
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137 retval = __plt__ ("polar", h, x, y, fmt);
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138 else
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139 error ("__plr2__: invalid data for plotting");
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140 endif
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141 elseif (isvector (theta))
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142 if (isvector (rho))
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143 if (length (theta) != length (rho))
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144 error ("__plr2__: vector lengths must match");
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145 endif
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146 if (rows (rho) == 1)
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147 rho = rho';
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148 endif
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149 if (rows (theta) == 1)
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150 theta = theta';
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151 endif
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152 x = rho .* cos (theta);
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153 y = rho .* sin (theta);
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154 retval = __plt__ ("polar", h, x, y, fmt);
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155 elseif (ismatrix (rho))
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156 [t_nr, t_nc] = size (theta);
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157 if (t_nr == 1)
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158 theta = theta';
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159 tmp = t_nr;
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160 t_nr = t_nc;
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161 t_nc = tmp;
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162 endif
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163 [r_nr, r_nc] = size (rho);
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164 if (t_nr != r_nr)
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165 rho = rho';
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166 tmp = r_nr;
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167 r_nr = r_nc;
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168 r_nc = tmp;
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169 endif
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170 if (t_nr != r_nr)
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171 error ("__plr2__: vector and matrix sizes must match");
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172 endif
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173 x = diag (cos (theta)) * rho;
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174 y = diag (sin (theta)) * rho;
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175 retval = __plt__ ("polar", h, x, y, fmt);
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176 else
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177 error ("__plr2__: invalid data for plotting");
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178 endif
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179 elseif (ismatrix (theta))
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180 if (isvector (rho))
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181 [r_nr, r_nc] = size (rho);
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182 if (r_nr == 1)
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183 rho = rho';
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184 tmp = r_nr;
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185 r_nr = r_nc;
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186 r_nc = tmp;
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187 endif
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188 [t_nr, t_nc] = size (theta);
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189 if (r_nr != t_nr)
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190 theta = theta';
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191 tmp = t_nr;
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192 t_nr = t_nc;
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193 t_nc = tmp;
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194 endif
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195 if (r_nr != t_nr)
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196 error ("__plr2__: vector and matrix sizes must match");
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197 endif
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198 diag_r = diag (rho);
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199 x = diag_r * cos (theta);
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200 y = diag_r * sin (theta);
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201 retval = __plt__ ("polar", h, x, y, fmt);
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202 elseif (ismatrix (rho))
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203 if (! size_equal (rho, theta))
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204 error ("__plr2__: matrix dimensions must match");
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205 endif
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206 x = rho .* cos (theta);
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207 y = rho .* sin (theta);
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208 retval = __plt__ ("polar", h, x, y, fmt);
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209 else
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210 error ("__plr2__: invalid data for plotting");
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211 endif
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212 else
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213 error ("__plr2__: invalid data for plotting");
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214 endif
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215
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216 endfunction
12789
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217
482cc053281b codesprint: Add 2 demos for polar.m
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218
482cc053281b codesprint: Add 2 demos for polar.m
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219 %!demo
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220 %! clf;
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221 %! theta = linspace (0,2*pi,1000);
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222 %! rho = sin (7*theta);
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223 %! polar (theta, rho);
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diff changeset
224
482cc053281b codesprint: Add 2 demos for polar.m
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225 %!demo
14237
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226 %! clf;
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227 %! theta = linspace (0,10*pi,1000);
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228 %! rho = sin (5/4*theta);
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diff changeset
229 %! polar (theta, rho);
482cc053281b codesprint: Add 2 demos for polar.m
Rik <octave@nomad.inbox5.com>
parents: 11587
diff changeset
230