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From: W. eWatson on 15 Feb 2010 12:53
I've been told by an experienced ML user that it's possible to produce a
dynamic line plot. A line is drawn, and then there's a pause of say 0.2
sec. Another line with a pause. The line moves across the screen.

Here's my problem. I'm using ML release 14 and haven't used it in 5
years. matplotlib in Python provides a close approx to ML. When I try
the "same" thing there, the figure graphic appears, and then suddenly
the axes but without a plot except for three markers I've put on the
screen and the axes. I have a feeling I'm missing the boat on something.
Could this be in ML the interactive mode?
From: Steven Lord on 15 Feb 2010 23:14

"W. eWatson" <wolftracks(a)invalid.com> wrote in message
news:hlc1ng$22d$1(a)news.eternal-september.org...
> I've been told by an experienced ML user that it's possible to produce a
> dynamic line plot. A line is drawn, and then there's a pause of say 0.2
> sec. Another line with a pause. The line moves across the screen.

Sure.

% Fix the axes limits
axis([-1 11 -1 122])

% Plot the initial line
h = line([0 1 1 0 0], [0 0 1 1 0]);

for k = 0:0.1:10
% Update the properties of the initial line to 'move' it
set(h, 'XData', [k k+1 k+1 k k], ...
'YData', [k k (k+1).^2 (k+1).^2 k]);

% and wait for a little bit -- you may want to use DRAWNOW instead
pause(0.2)
end

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


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