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[project @ 1994-08-09 01:18:13 by jwe] Initial revision
author jwe
date Tue, 09 Aug 1994 01:18:13 +0000
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children 45172f0adca5
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1 # Copyright (C) 1993, 1994 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, 675 Mass Ave, Cambridge, MA 02139, 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 ([xmin, xmax])
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22 # axis ([xmin, xmax, ymin, ymax])
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23 # axis ([xmin, xmax, ymin, ymax, zmin, zmax])
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24 #
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25 # Sets the axis limits.
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26 #
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27 # If your plot is already drawn, then you need to REPLOT before
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28 # the new axis limits will take effect.
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29
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30 if (nargin != 1)
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31 error ("usage: axis ([xmin, xmax, ymin, ymax, zmin, zmax])");
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32 endif
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33
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34 if (is_vector (ax))
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35
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36 len = length (ax);
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37
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38 if (len != 2 && len != 4 && len != 6)
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39 error ("axis: expecting vector with 2, 4, or 6 elements");
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40 endif
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41
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42 if (len > 1)
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43 eval (sprintf ("set xrange [%d:%d];", ax (1), ax (2)));
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44 endif
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45
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46 if (len > 3)
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47 eval (sprintf ("set yrange [%d:%d];", ax (3), ax (4)));
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48 endif
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49
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50 if (len > 5)
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51 eval (sprintf ("set zrange [%d:%d];", ax (5), ax (6)));
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52 endif
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53
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54 else
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55 error ("axis: expecting vector with 2, 4, or 6 elements");
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56 endif
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57
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58 endfunction