Discretize the 3-D surface into individual points in MATLAB
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Hey guys!
how to discretize the 3-D surface into individual points in MATLAB.
For example, if I have a surface in x,y,z. I want to generate each curve (y,z) for x=-1,-0.9,-0.8 etc. Can you guys please give me some guidances for it, I would very appreciate it!
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Walter Roberson
2022-1-16
F = @(X, Y) sin(X).^2 - cos(3*Y).^2; %equation of the surface
xvec = -1:0.1:1;
yvec = -3.2:.1:3.2;
[x, y] = meshgrid(xvec, yvec);
z = F(x, y);
surf(x, y, z); xlabel('x'); ylabel('y'); zlabel('z')
z is your discretized data.
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Walter Roberson
2022-1-16
Nx = 100;
Ny = 22;
xvec = linspace(min(xdata), max(xdata), Nx);
yvec = linspace(min(ydata), max(ydata), Ny);
[XQ, YQ] = meshgrid(xvec, yvec);
ZQ = reshape( fitresult([XQ(:), YQ(:)]), size(XQ) );
scatter3(XQ, YQ, ZQ, 'bo');
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