How to plot a 3D contour plot when the contours is a forth vector

2024 9 9
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更新时间：2024 9 11
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Hello,
I have a set of data X,Y,Z,A. I would like to plot A in 3D. Not sure how to proceed.
It would be nice to have contour plots for A as a function of x,y,z
Is this possible?
Thank you

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回答（1 个）

Star Strider
Star Strider 2024-9-9

0 个投票

Use the contour3 function. If ‘A’ is a list of the contour levels, all the MATLAB contour functions accommodate defining the contour levels in a vector. The contour3 function can be used in conjunction with surf (or surfc) to plot them on the surface. Use the hold function to do that.

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Robert Jones
Robert Jones 2024-9-9
No, A is not the contour levels.
Say X,Y,Z are coordinates, and A are the temperatures at the XYZ points
Robert Jones
Robert Jones 2024-9-9
the contours should represent equal temperature
Star Strider
Star Strider 2024-9-10
Ran in:
Ran in:
I was considering something like this —
[X,Y] = ndgrid(-5:0.1:5);
Z = exp(-(X.^2+Y.^2)*0.2)*50;
A = sort(rand(15,1))*30+10
A = 15x1
11.1544 15.1121 15.8346 16.1930 19.3858 24.0779 28.4907 28.5324 29.8759 30.5134
<mw-icon class=""></mw-icon>
<mw-icon class=""></mw-icon>
figure
surf(X,Y,Z, 'EdgeColor','interp', 'FaceColor','interp')
hold on
contour3(X, Y, Z, A, '-k')
hold off
colormap(turbo)
hcb = colorbar;
hcb.Label.String = '°C';
.

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