How to have an animated bar graph ?

Question

Chafik Zerrouki 2017-11-27

0
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https://ww2.mathworks.cn/matlabcentral/answers/369443-how-to-have-an-animated-bar-graph

评论： Chafik Zerrouki 2017-11-27

Hello,

I would like to have an animated bar graph. I already tried in App designer with the gauge but i can't change the appearance of it.

I would like to do it in App designer. If it's not possible, no problem.

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Answer 1

KSSV 2017-11-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/369443-how-to-have-an-animated-bar-graph#answer_293331

在 MATLAB Online 中打开

h = figure;
axis tight manual % this ensures that getframe() returns a consistent size
filename = 'test.gif';
for n = 1:0.5:5
    % Draw plot for y = x.^n
    x = rand(10,1) ;
    bar(x)
    drawnow
    % Capture the plot as an image
    frame = getframe(h);
    im = frame2im(frame);
    [imind,cm] = rgb2ind(im,256);
    % Write to the GIF File
    if n == 1
        imwrite(imind,cm,filename,'gif', 'Loopcount',inf);
    else
        imwrite(imind,cm,filename,'gif','WriteMode','append');
    end
end