How to calculate volume of surf plot (3d plot) en matlab?

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abdelmadjid benrabah
评论： Star Strider 2021-9-17
How to calculate volume of surf plot (3d plot) en matlab?
using variable x and y and function z

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Star Strider
Star Strider 2021-9-17
Ran in:
The surf plot arguments are matrices, so use trapz:
x = 1:10;
y = 1:20;
[X,Y] = meshgrid(x,y);
z = exp(-((X-5)/5.*(Y-10)/10).^2)
z = 20×10
0.5955 0.7471 0.8784 0.9681 1.0000 0.9681 0.8784 0.7471 0.5955 0.4449 0.6639 0.7942 0.9027 0.9747 1.0000 0.9747 0.9027 0.7942 0.6639 0.5273 0.7308 0.8383 0.9246 0.9806 1.0000 0.9806 0.9246 0.8383 0.7308 0.6126 0.7942 0.8784 0.9440 0.9857 1.0000 0.9857 0.9440 0.8784 0.7942 0.6977 0.8521 0.9139 0.9608 0.9900 1.0000 0.9900 0.9608 0.9139 0.8521 0.7788 0.9027 0.9440 0.9747 0.9936 1.0000 0.9936 0.9747 0.9440 0.9027 0.8521 0.9440 0.9681 0.9857 0.9964 1.0000 0.9964 0.9857 0.9681 0.9440 0.9139 0.9747 0.9857 0.9936 0.9984 1.0000 0.9984 0.9936 0.9857 0.9747 0.9608 0.9936 0.9964 0.9984 0.9996 1.0000 0.9996 0.9984 0.9964 0.9936 0.9900 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000
zvol = trapz(x,trapz(y,z))
zvol = 158.0451
figure
surf(x, y, z)
grid on
.
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Star Strider
Star Strider 2021-9-17
My pleasure!
If my Answer helped you solve your problem, please Accept it!
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