I have a meshed annular region (shown in image), I have no a analytical function z=f(x,y)but a matrix A stored z value of each node. furthermore, I know coordinates of every element in A matrix. Now, I want to plot the plot of z in this annular region. I know if the refion is rectandle, this is easy to do using mesh or surf. Anyone can help me? Tanks firstly.
I understand that you are trying to plot a 3D surface using a matrix in Polar coordinate. You can refer this link to find the detailed way to plot a 3D surface in a polar coordinate.
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