MATLAB: Creating Polar mesh in matlab

meshmeshgridpolar

I want to plot a surface z = f(x,y) and it is desired to plot it on a circle surface. Is it possible in matlab or can create polar mesh on matlab?

Best Answer

Hi Reza,

% make a rectangular grid of r and theta,
% then define x and y in the usual way 
rr = 0:1:20;
thth = (0:.05:1)*2*pi;
[r th] = meshgrid(rr,thth);
x = r.*cos(th);
y = r.*sin(th);
z = 1 + x.^2 - y.^2;
surf(x,y,z)

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MATLAB: Creating a mesh or surf with parametric equations

r = linspace(0,1) ;
th = linspace(0,2*pi) ;
[R,TH] = meshgrid(r,th) ;
X = 4*R.*sin(TH) ;
Y = R.*cos(TH/2) ;
Z = R.^2 ;
surf(X,Y,Z)

MATLAB: How to plot a circle of some radius on a polar plot

th = linspace(0,2*pi,50);
r = 10;
polar(th,r+zeros(size(th)))

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