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Re: Octave's plotting much slower than matlab
From: |
David Bateman |
Subject: |
Re: Octave's plotting much slower than matlab |
Date: |
Mon, 21 Jan 2008 20:54:27 +0100 |
User-agent: |
Thunderbird 1.5.0.7 (X11/20060921) |
Thomas Ilnseher wrote:
> I changed the function to this:
>
> f=fopen('scatter.txt', 'r');
> [v c] = fscanf(f, '%d', [2, inf]);
> fclose(f);
> %scatter(v(1,:), v(2,:));
> figure(1);
> hold('on');
> legend('off');
> grid('on');
> plot(v(1,:), v(2,:), 'ob');
>
> now the stuff is even _faster_ than matlab, as I pointed out before.
> the output is roughly the same as with scatter (except that all circles
> have the same color). by doing some tricks with "hold('on');" and
> sub-ranges, I can even get the same picture as with scatter.
>
> I definitely do not need to access specific points as patch objects.
>
> So I'm fine (and might write myself a fscatter.m file).
>
Yes, but then you can't do
colormap cool
or whatever, whereas you cn with scatter
D.