MATLAB: Intersection of two surfaces

3d plotsintersectionMATLABsurfsurface

Hi. I need to plot the intersection line of two surfaces. The two surfaces are defined using the surf function of matlab. Can anyone help me?

Best Answer

More detail (such as the data or surfaces themselves) would be helpful.

The approach I would use is to subtract one surface from the other. Where this is equal to 0 is where they intersect. An easy way to find the (x,y) coordinates of the intersection (when you have done the subtraction), is to use the contour (link) function to draw the contour of the result of the subtraction. Use the technique described in Contours at One Level (link), with the level defined as [0,0]. Also see the section on Output Arguments (link). You may have to experiment a bit, depending on how your surfaces are defined.

Related Solutions

MATLAB: How to plot a circular surface with z axis to be a cos function

Here you go!

This code —

a = linspace(0, 9*pi, 150);
[A,R] = meshgrid(a);
Z = cos(A);
[X,Y,Z] = pol2cart(R,A,Z);
figure
surf(X,Y,Z)
grid on
shading interp
axis equal
colormap(jet)

produces this plot —

I leave the surface area calculation to you. You might find Integration to Find Arc Length (link) helpful.

MATLAB: Dataset intersection

LargeStock={'a',0.1;'b',0.2;'c',0.3;'d',0.4;'e',0.5};
MyStock={'b','d'};
Index=ismember(LargeStock(:,1),MyStock);
MyStockAndReturn=LargeStock(Index,:);

Best Answer

Related Solutions

MATLAB: How to plot a circular surface with z axis to be a cos function

MATLAB: Dataset intersection

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