MATLAB: 3D surface plot question

3d plot

Hi, I would like to plot the following data as a 3D plot (showing just the first column), where 1st column is X, 2nd is Y and 3rd is Z. Does anybody know how would I do that?

0.66455 -0.03190 14.50000

Thanks

Tarsis

Best Answer

For your data, I would use the scatter3 function. If you want to do a surface fit, see the documentation for Scattered Data Interpolation.

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MATLAB: Showing points on a graph

I prefer stem3 for these, but plot3 or scatter3 (or a combination of them) will also work, depending on what you want to do.

The Code:

x = [1 2 3];
y = [4 5 6];
z = [7 8 9];
figure(1)
stem3(x, y, z)
grid on

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Depending on what you want your plot to look like, I would use either scatter3 or plot3.

If your data are in a sense gridded (your x or y vectors have regularly-repeating segments for example) you could use reshape and then use a surface plot.

Without your data or an image, it is not possible to provide a definitive reply.

Best Answer

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