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## Re: Euclidean geometry in octave

**From**: |
mhagger |

**Subject**: |
Re: Euclidean geometry in octave |

**Date**: |
Wed, 7 Oct 1998 10:23:55 +0100 (BST) |

>* I often need drawings for Euclidean geometry problems in *
>* documents. I don't like any of the software I've seen, so*
>* I would like to do it in Octave.*
>* *
>* 1. Am I re-inventing the wheel? In other words, does there*
>* exist a perfectly reasonable Octave package which already *
>* does this?*
>* 2. I've tried a few simple things, and have immediately come*
>* up against a plotting problem: I can't find a plotting*
>* command that forces the scales on the two axes to be the*
>* same. For example, what looked like perfectly good circles*
>* and squares on my X11 screen come out as ellipses and *
>* parallelograms on Postscript output. So:*
>* How does one force a 2D plot to have equal scales*
>* on both axes?*
One option is to use
octave> gset size ratio X
before you print the graph as a Postscript file. Here X is the ratio of Y
to X scale, see gnuplot help on "set size" for more info on "set size" (I
was using this about 2 minutes ago which is why I managed to reply so
promptly!).
Hope this helps.
Mark