How do I plot a sphere along an elliptical path
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Mahmoud
on 4 Dec 2013
Commented: Walter Roberson
on 4 Dec 2013
Hi all,
I am trying to plot a spherical object along an elliptical path, I found this code that plots the path, but I need to get the sphere to move along this path
ellipse = fncmb(circle,[2 0;0 1]);
s45 = 1/sqrt(2);
rtellipse = fncmb(fncmb(ellipse, [s45 -s45;s45 s45]), [1;1] );
hold on, fnplt(rtellipse), hold off
Regards,
Jobe
4 Comments
Walter Roberson
on 4 Dec 2013
The code you show doesn't really rotate the sphere: it rotates the viewpoint leaving the sphere fixed in place. My guess is that you will want to keep your viewpoint in place and have the object move within the fixed view, right?
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More Answers (1)
Mahmoud
on 4 Dec 2013
Edited: Walter Roberson
on 4 Dec 2013
1 Comment
Walter Roberson
on 4 Dec 2013
You probably don't want the scaling portion going on, just
Rz = makehgtform('zrotate',r);
set(t, 'Matrix', Rz);
drawnow()
I am not sure at the moment why the rotation might not be happening. Are you seeing the scaling going on? With the code you have, is the sphere growing over time?
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