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How plot revolution of a circle to generate a sphere by animation view?

asked 2019-02-03 07:47:58 -0500

Geometry gravatar image

I would like to plot a sphere $x^2+y^2+z^2=4$ by revolving a circle $x^2+y^2=4$ with respect to diameter. The whole revolution process will be shown by animation. How can I do this?

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answered 2019-02-03 08:56:13 -0500

tmonteil gravatar image

For each step of the (discretized) revolution process you have to define a picture, and you will glue the pictures into an animation with the animate function. Since each picture corresponds to a range of longitudes, the easiest way to do this should be to use a representation of the sphere by it spherical coordinates, so, you can use the following:

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Asked: 2019-02-03 07:47:58 -0500

Seen: 52 times

Last updated: Feb 03