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annotate scripts/plot/polar.m @ 5775:ace8d8d26933

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[project @ 2006-04-24 19:13:06 by jwe]
author jwe
date Mon, 24 Apr 2006 19:13:11 +0000
parents 2618a0750ae6
children 34f96dd5441b
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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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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} polar (@var{theta}, @var{rho}, @var{fmt})
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22 ## Make a two-dimensional plot given polar the coordinates @var{theta} and
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23 ## @var{rho}.
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24 ##
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25 ## The optional third argument specifies the line type.
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26 ## @seealso{plot, semilogx, semilogy, loglog, mesh, contour, bar,
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27 ## stairs, replot, xlabel, ylabel, title}
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28 ## @end deftypefn
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30 ## Author: jwe
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32 function polar (x1, x2, fmt)
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33
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34 ## FIXME -- these plot states should really just be set
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35 ## temporarily, probably inside an unwind_protect block, but there is
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36 ## no way to determine their current values.
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38 __gnuplot_raw__ ("set nologscale;\n");
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39 __gnuplot_raw__ ("set nopolar;\n");
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41 if (nargin == 3)
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42 if (! ischar (fmt))
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43 error ("polar: third argument must be a string");
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44 endif
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45 __plr2__ (x1, x2, fmt);
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46 elseif (nargin == 2)
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47 if (ischar (x2))
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48 __plr1__ (x1, x2);
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49 else
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50 fmt = "";
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51 __plr2__ (x1, x2, fmt);
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52 endif
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53 elseif (nargin == 1)
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54 fmt = "";
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55 __plr1__ (x1, fmt);
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56 else
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57 usage ("polar (theta, rho, fmt)");
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58 endif
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59
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60 endfunction