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annotate scripts/plot/axis.m @ 1315:611d403c7f3d

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[project @ 1995-06-25 19:56:32 by jwe]
author jwe
date Sun, 25 Jun 1995 19:56:32 +0000
parents 3f257ab07921
children 26a096727e89
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1 # Copyright (C) 1993, 1994, 1995 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 the
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7 # Free Software Foundation; either version 2, or (at your option) any
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8 # later version.
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9 #
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10 # Octave is distributed in the hope that it will be useful, but WITHOUT
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11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 # 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 02111-1307, USA.
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18
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19 function axis (ax)
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20
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21 # usage: axis ()
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22 # axis ([xmin, xmax])
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23 # axis ([xmin, xmax, ymin, ymax])
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24 # axis ([xmin, xmax, ymin, ymax, zmin, zmax])
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25 #
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26 # Sets the axis limits.
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27 #
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28 # With no arguments, turns autoscaling on.
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29 #
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30 # If your plot is already drawn, then you need to REPLOT before
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31 # the new axis limits will take effect.
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32
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33 if (nargin > 1)
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34 usage ("axis ([xmin, xmax, ymin, ymax, zmin, zmax])");
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35 endif
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36
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37 if (nargin == 0)
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38 set autoscale;
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39 elseif (is_vector (ax))
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40
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41 len = length (ax);
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42
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43 if (len != 2 && len != 4 && len != 6)
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44 error ("axis: expecting vector with 2, 4, or 6 elements");
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45 endif
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46
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47 if (len > 1)
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48 eval (sprintf ("set xrange [%g:%g];", ax (1), ax (2)));
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49 endif
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50
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51 if (len > 3)
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52 eval (sprintf ("set yrange [%g:%g];", ax (3), ax (4)));
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53 endif
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54
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55 if (len > 5)
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56 eval (sprintf ("set zrange [%g:%g];", ax (5), ax (6)));
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57 endif
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58
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59 else
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60 error ("axis: expecting no args, or a vector with 2, 4, or 6 elements");
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61 endif
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62
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63 endfunction