Re: drawnow function problem


"Steven Lord" <slord@xxxxxxxxxxxxx> wrote in message
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"Tomy" <alcatraz@xxxxxx> wrote in message
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How can I get solid line when using a drawnow function. I get the graph
which I want, but it is plotted with dots. I am using semilogy function
to draw graph.

This is part of code:

semilogy(q,a(t));
drawnow;
hold on;
grid on;

semilogy(q,a(t),'-'); --- this doesn't work too


Sorry, if I wrote something wrong. My english is not very good..

Each call to SEMILOGY is creating a new line containing just one point.
Instead, create one line and update its data.

h = semilogy(1, 1);
axis([1 100 1 100]);
for k = 2:100
xdata = get(h, 'XData');
ydata = get(h, 'YData');
set(h, 'XData', [xdata k], 'YData', [ydata k]);
pause(0.2)
end

or

x = NaN(1, 100);
y = NaN(1, 100);
h = semilogy(x, y);
axis([1 100 1 100]);
for k = 1:100
x(k) = k;
y(k) = k;
set(h, 'XData', x, 'YData', y);
pause(0.2)
end

--
Steve Lord
slord@xxxxxxxxxxxxx



thanx


.

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