Hi everyone,

I consider myself a beginner in MATLAB so bear with me if the answer to my question is an obvious one.

Phi=0:pi/100:2*pi;
Theta=0:pi/100:2*pi;
[PHI,THETA]=meshgrid(Phi,Theta);

R=(1 + cos(PHI).*cos(PHI)).*(1 + cos(THETA).*cos(THETA));
[X,Y,Z]=sph2cart(THETA,PHI,R);
surf(X,Y,Z); %display

hold on;

x1=-4:.1:4;
[X1,Y1] = meshgrid(x1);
a=1.8; b=0; c=3; d=0;
Z1=(d- a * X1 - b * Y1)/c;
shading flat;
surf(X1,Y1,Z1);

I have written this code which plots a 3d cartesian plot of a plane intersecting a peanut shaped object at an angle.

I need to get the intersection of these on 2D (going to be the outline of a peanut, but a bit skewed since the intersection happens at an angle), but don't know how.

Thanks