Create surf (3D plot) with axis limitation from 2D matrix - animated

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Jack Daniels 2022-11-11

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https://ww2.mathworks.cn/matlabcentral/answers/1848778-create-surf-3d-plot-with-axis-limitation-from-2d-matrix-animated

评论： Jack Daniels 2022-11-14

采纳的回答： Cris LaPierre

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I am trying to create "mesh" (surf) out of 2D matrix which is changing by time on its values

x = 1:30;
y = x;
Z = [ 1 1 1; 1 1 1; 1 1 1];
[X30 , Y30] = meshgrid(x,y);
a=1;
for inc = 1:30
   Z30 = imresize (Z,[30 30],'bicubic');
   a = a + 1;
   Z(2,2) = a;
   surf(X30,Y30,Z30)
   axis([0 30 0 30 0 30])
   pause(0.5)  
end

The "surf" shows plot with "auto" axis limitation and after applying "axis" function are the size limited, so I have two plots refreshed subsequently - can be set the axis of surf once?

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采纳的回答

Cris LaPierre 2022-11-13

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https://ww2.mathworks.cn/matlabcentral/answers/1848778-create-surf-3d-plot-with-axis-limitation-from-2d-matrix-animated#answer_1098668

编辑：Cris LaPierre 2022-11-13

在 MATLAB Online 中打开

Each time you call the surf function, you get a brand new axes. This means any settings set in the previous axes are lost, and must be reset.

It looks like you just want to update the Z values of your surface. You can do that by accessing the ZData property of your plot. Try this.

x = 1:30;
[X30 , Y30] = meshgrid(x);
Z = [ 1 1 1; 1 1 1; 1 1 1];
Z30 = imresize (Z,[30 30],'bicubic');
sf = surf(X30,Y30,Z30);
axis([0 30 0 30 0 30])
for a = 1:30
   Z(2,2) = a;
   Z30 = imresize (Z,[30 30],'bicubic');
   sf.ZData = Z30;
   pause(0.5)  
end