MATLAB: Surface under the curve

curve fittingMATLABsurface fitting

I have 3 vectors x,y,z such that function plot3 plots the attached graph. I need to fit a surface such that I get somewhat second attached graph.

I have tried surf function but I don't get the results I want. Kindly help

Best Answer

This looks something like what you want:

x = [0:10 10];
y = [0:10 10];
z= [0 6 5 8 7 7 8 9 7 5 6 0];
figure(1)
patch(x, y, z, 'g')
grid on
view([-30  30])

The key is using the patch function.

producing:

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MATLAB: 3D plotting in Matlab

Try this:

x = linspace(-pi*0.49, pi*0.49);
y = abs(tan(x));
z = 5*ones(size(x));
figure(1)
plot3(x, y, z, 'LineWidth',2)
grid on

producing:

MATLAB: Graphing a system of equations on the same set of axes in 3d? please

[x, y] = meshgrid(linspace(-10, 10)); % Calculate the two surfaces z1 =(3*x+8*y)/2; z2=(6*x+2*y)/8; z3=9*x+4*y; % Visualize the two surfaces surface(x, y, z1, 'FaceColor', [0.5 1.0 0.5], 'EdgeColor', 'none'); surface(x, y, z2, 'FaceColor', [1.0 0.5 0.0], 'EdgeColor', 'none'); surface(x, y, z3, 'FaceColor', [0.5 0.5 0.5], 'EdgeColor', 'none'); view(3); camlight; axis vis3d

Best Answer

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MATLAB: 3D plotting in Matlab

MATLAB: Graphing a system of equations on the same set of axes in 3d? please

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