Re: How to set different dot and dash sizes in plot

[Ben Abbott]

On Feb 27, 2013, at 4:44 PM, Trastu wrote:

> I’m plotting two curves in one figure, using dash and dash-dot style; the 
> result is hardly distinguishable as both dashes and dots are plotted in a 
> very small size; changing the ‘markersize’ parameter doesn’t seem to make any 
> difference.
> How can I make them look a little bigger so they can be more easily seen?

The dash length and dot size varies with the gnuplot terminal.  As far as I 
know, gnuplot doesn't have a way to changing the duty-factor or size of its 
dashes or dots.  However, you may find the behavior of a different terminal 
works better.  On MacOS X, I'm able to use "x11", "aqua", and "qt".

        graphics_toolkit gnuplot
        close all
        setenv ("GNUTERM", "x11")
        x = 1:4;
        plot (x, rand (1,4), "-", x, rand (1,4), "--", x, rand (1,4), "-.", x, 
rand (1,4), ":")

You can try other terminals by replacing "x11" with "wxt" (on Linux) or 
"windows" on Windows.

If you are using a recent version of Octave, I suggest you try using the fltk 
toolkit.

        graphics_toolkit fltk
        close all
        x = 1:4;
        plot (x, rand (1,4), "-", x, rand (1,4), "--", x, rand (1,4), "-.", x, 
rand (1,4), ":")

 Ben