Translation for an ellipsoid ?

Is it possible to translate an ellipsoid after it is rotated. I have understood the usage of rotate function for doing this.

[a,b,c]=ellipsoid(axes_handle,0,0,0,sx(k),sy(k),sz(k),meshSize);
h2=surf(a,b,c); 
rotate(h2,[1 0 0],phix_d);

However, there does not seem to exist a similar function for translation. Is there anyway to do this such that later on I need the coordinates of the rotated followed by translated ellipsoid.

[Robbie Gaul]

Hi Sakshi,

Did you ever find a solution to this problem as I need to do the same thing?

Regards

Answer 1

[Muhammad Zubair Sheikh]

Is there any solution to translate the ellipsoid?

[darova]

What do you mean? Can't you just add some value to your data&

X = X + 4.5;

[John D'Errico]

Please don't add an answer to an old question just to ask a question.

Translating an ellipsoid is as trivial as adding a constant offset to x, y or z (or any combination thereof.)

[Muhammad Zubair Sheikh]

My apologies!

Answer 2

[Catalytic]

Is there anyway to do this such that later on I need the coordinates of the rotated followed by translated ellipsoid.

You can do all manner of translations and rotations in combination with one another using makehgtform,

[x, y, z] = ellipsoid(0,0,0,5.9,3.25,3.25,30);

h=surf(x,y,z);
T = hgtransform('Parent',gca);
h.Parent=T;

T.Matrix=makehgtform('yrotate',pi/4,'translate',[-15 -10 0]);

axis vis3d

[Muhammad Zubair Sheikh]

Thank you so much.

I however solved the problem by generating an ellipsoid at [0,0,0] and rotating its coordinates (X, Y, Z) with a rotation matrix and then adding some values to them for translation.