Plot sphere with different resolution in long and lat direction

Question

Peter Paul 2017-10-19

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https://ww2.mathworks.cn/matlabcentral/answers/362121-plot-sphere-with-different-resolution-in-long-and-lat-direction

编辑： David Goodmanson 2017-10-20

采纳的回答： David Goodmanson

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Hi everybody,

I would like to modify MATLAB's

sphere(n)

function such that I can plot a sphere with different resolution in longitudinal and latitudinal direction, i.e. something like

sphere(10,100)

would plot a sphere (and return its [X,Y,Z] grid) with 10 segments in latitudinal direction (north to south) and 100 segments in longitudinal direction (west to east), evenly spaced. What's the quickest way to doing this?

Thanks a lot!

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Answer 1

David Goodmanson 2017-10-20

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https://ww2.mathworks.cn/matlabcentral/answers/362121-plot-sphere-with-different-resolution-in-long-and-lat-direction#answer_286892

编辑：David Goodmanson 2017-10-20

在 MATLAB Online 中打开

Hi Peter,

There is really not the kind of limitation on surf that you seem to imply. This example shows a sphere with different number of points for latitude and longitude.

m = 10;                         % latitude
n = 25;                         % longitude
theta = ((-m/2:m/2)/m)*180;     % degrees
phi =   ((0:n)/n)*360;          % degrees  
[theta1 phi1] = meshgrid(theta,phi);
x = cosd(theta1).*cosd(phi1);
y = cosd(theta1).*sind(phi1);
z = sind(theta1);
surf(x,y,z)