how to plot ellipsoid?

ellipsoid equation is x^2 +y^2 +2z^2 =10

Answer 1

[SYED IMTIAZ ALI SHAH]

Your question need more elaboration, however this might help

https://www.mathworks.com/matlabcentral/answers/86921-plot-an-ellipsoid-with-matlab

[TheRealTonyStark]

Thankyou I got my answer.

Answer 2

[Star Strider]

Try this (partially copied from the documentation page Connecting Equal Values with Isosurfaces):

x = linspace(-10, 10, 50);
[X,Y,Z] = meshgrid(x);
V = (X.^2 + Y.^2 + 2*Z.^2);

figure
hp = patch(isosurface(X,Y,Z,V,10))
isonormals(X,Y,Z,V,hp)
hp.FaceColor = 'r';
hp.EdgeColor = 'none';
camlight left; 
lighting gouraud
grid on
view(-20,30)

producing:

Also see the documentation on the isosurface function.

[qilin guo]

Very good! It helps me! Thank you very much!

[Star Strider]

My pleasure!

Answer 3

[Matt J]

You can also use,

https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-for-fitting-conics-and-quadrics

which has the convenience of letting you specify yaw/pitch/roll angles for the ellipsoid.

[Center,ABC,YPR]=deal([0 2 1] , [6 2 1], [60 40 0]);    %center, radii, yaw/pitch/roll

obj=ellipsoidalFit.groundtruth([],Center,ABC,YPR);    

plot(obj,   {'FaceColor', 'm'}); 
xlabel X; ylabel Y; zlabel Z