![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/286277/image.png)
How can I plot this figure using MATLAB?
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Dear experts.
I am not a MATLAB user myself but a portion of my work requires me to plot figures on MATLAB. I am unable to figure this out and google was not any help. I would be grateful if somebody gives me a clue about how to plot this figure? I would like to use this figure as my starting point to carry on my practice.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/286105/image.png)
I wish you a good day
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Réponse acceptée
darova
le 21 Avr 2020
Here is patch use
x = 0:0.1:1;
y = sqrt(x);
cla
patch([0 0 0],[0 1 0],[0 0 1],'b') % vertical triangle
patch([1 0 x],[1 1 y],[0 0 x*0],'b') % horizontal triangle
patch([1 0 x],[1 1 y],[0 0 1-y],'b') % diagonal triangle
% use for loop to create cylindrical part
for i = 1:length(x)-1
dx = x(i:i+1);
dy = y(i:i+1);
patch([dx flip(dx)],[dy flip(dy)],[1-dy 0 0],'b')
end
alpha(0.5)
axis vis3d
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/286277/image.png)
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