How to extract slice of 3D PDE solution into a matrix? Works with slice to plot, but want the actual date

Hello all,

I have a 3D PDE solution.

I want to extract a slice of this solution into a matrix to do further analysis (I want to calculate the gradient and plot the solution just at a plane).

Here is my code so far:

   [X,Y,Z] = meshgrid(-47:1:54,-72:1:29,-50:1:50);

%results is the result of my PDE calculation
V = interpolateSolution(results,X,Y,Z);

%xslice is the x plane I want to investigate
slice(X,Y,Z,V,xslice,[],[])

The result is a plot of the plane I would like to do further analysis on, however the result of the slice is an object, not a matrix. Is there a way to extract this slice into matrix form somehow?

Answer 1

[Precise Simulation]

The slice is a graphics handle object which you can extract the data from, for example (use get(h) to see what data is available):

    h = slice(X,Y,Z,V,xslice,[],[]);
    x = get(h,'xdata');
    y = get(h,'ydata');
    z = get(h,'zdata');