How to plot a cross-section of a surface plot

2011 8 5
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I have a 3D plot that's generated by 3 900x900 matrices X,Y,Z. I want to plot the Z values at X==300micros(note:matrix dimension has nothing to do with values of X dimension) for all values of Y.
Any Idea how I could do this?

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Fangjun Jiang
Fangjun Jiang 2011-8-5

1 个投票

I think the function you are looking for is interp2(). For example:
M=10;
N=10;
X=-1:1/M:1;
Y=-1:1/N:1;
Z=membrane(1,M,N);
figure(1);surf(X,Y,Z);
x=0.3;
z=interp2(X,Y,Z,x,Y);
figure(2);plot(Y,z);

更多回答（1 个）

Jul Smith
Jul Smith 2012-5-17

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Hello, I have a file of contours that I want to visualiza in a cross section and another file of points x,y,z. How can I integrate point data into a cross section of those contours. I have tried interp function without success. Any ideas?
THANKS, Jul

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