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Re: Matlab ginput
From: |
John W. Eaton |
Subject: |
Re: Matlab ginput |
Date: |
Mon, 2 Dec 1996 15:51:29 -0600 |
On 2-Dec-1996, Mario Storti <address@hidden> wrote:
: BTW, is there a way to know the aspect ratio of the gnuplot window?
I don't know if gnuplot can return this information. Even if it can,
it is not currently possible to have it returned in a variable in Octave.
: I want to have the same scale factor in both axis, since I'm plotting
: finite element meshes, and similar things. In Matlab 3.5 for DOS there
: was the axis('square') feature.
With some terminal drivers, the commands
set size square
or
set size ratio 1
will set the plot axes to be square, though the scales are not
necessarily forced to be the same, so circles may still be displayed
as ellipses. For example,
gnuplot> set size ratio 1
gnuplot> set parametric
dummy variable is t for curves, u/v for surfaces
gnuplot> plot sin(t), cos(t)
shows a circle on my X display, but
gnuplot> set xrange [-2:2]
gnuplot> replot
turns it into an ellipse.
This works with gnuplot 3.6beta, anyway. I didn't check earlier
versions.
jwe
Re: Matlab ginput, Joao Cardoso, 1996/12/02