How to animate the plot back and forth for unlimited cycles?

5 views (last 30 days)
Take the example of code pasted below.
I just want that the ball move back and forth again and again until some body closes the figure. I used 'while true' loop but it is not useful in this regard.
x = linspace(-1, 1, 75);
y = -x.^2;
figure(1)
for k2 = 1:2
for k1 = 1:length(x)
plot(x(k1)*(-1)^k2, y(k1), 'ob', 'MarkerFaceColor','r')
axis([min(x) max(x) min(y) max(y)])
refreshdata
drawnow
end
end

Accepted Answer

Subhadeep Koley
Subhadeep Koley on 10 Feb 2020
Define a figure CloseRequestFcn like below
function my_closereq(src, callbackdata)
selection = questdlg('Close This Figure?',...
'Close Request Function',...
'Yes','No','Yes');
switch selection
case 'Yes'
delete(gcf);
case 'No'
return
end
end
And use this script
x = linspace(-1, 1, 75);
y = -x.^2;
fig = figure('CloseRequestFcn', @my_closereq);
ax = axes(fig);
while true
for k2 = 1:2
for k1 = 1:length(x)
plot(ax, x(k1)*(-1)^k2, y(k1), 'ob', 'MarkerFaceColor','r')
axis([min(x) max(x) min(y) max(y)])
refreshdata
drawnow
end
end
end
Hope this helps!
  2 Comments
Mike Migliore
Mike Migliore on 4 Feb 2022
How would I go about altering this. I'd like the dot to switch directions rather than starting over from the initial position. So it would be bouncing back and forth instead.

Sign in to comment.

More Answers (0)

Categories

Find more on Graphics Performance in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!