# Plot shell boundary in 3D

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Orion on 4 Jun 2018
Answered: Varun Garg on 5 Jun 2018
I want to plot a shell layer structure in 3D space. I have three-dimensional coordinate vectors x(:,:,:), y(:,:,:), z(:,:,:) and a data vector V(:,:,:) that has nonzero values at the shell locations and is zero elsewhere. The closest image that I could find similar to what I want is this: How can I do this? Let's say, I only need to plot the middle layer. The closest that I could do is to use:
s=scatter3(x,y,z,1,V)
But this creates a plot of scattered data points. Is there a way to get Matlab to create a surface out of the scatter points?

Varun Garg on 5 Jun 2018
I understand from your question that you want a better graph plot than scatter plot and preferably something continuous.
I guess the surface plot function should do the trick for you. Try implementing
surf
Sample Snippet :
[X,Y] = meshgrid(1:0.5:10,1:20);
Z = sin(X) + cos(Y);
surf(X,Y,Z)
You might find the documentation very useful.