Plot data in the surface of a sphere

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Pablo 2016-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/285670-plot-data-in-the-surface-of-a-sphere

评论： jeewan atwal 2020-8-13

Hello everybody

I have a matrix of data collected when measuring in different angles theta, phi. This matrix is 100 x 100 where each line gives a different value of theta and each column a different value for phi. I want to plot this data as a density plot over the surface of a sphere. So long I know how to do this for a given function but not for my data.

My best try, (to be honest I saw this code in a document) :

res = 100;
lambda = linspace(-pi,pi,res);
theta = linspace(-pi/2,pi/2,ceil(res/2));
[L,T] = meshgrid(lambda,theta);
f=sphHarm(8,0,L,T)+sphHarm(8,7,L,T);
[X,Y,Z] = sph2cart(L,T,1);
clf;
surf(X,Y,Z,f);
colorbar; shading interp; daspect([1 1 1]); axis tight; view([70 25]);
title('3D Plot of f on the sphere')