- #1

Sabertooth

- 29

- 2

- TL;DR Summary
- I have made a rotating point on the perimeter of an ellipse. My problem is that the motion is reversed from the true foci.

Hi all:)

In my recent exploration of Elliptic Function, Curves and Motion I have come upon a handy equation for creating orbital motion.

Essentially I construct a trigonometric function and use the max distance to foci as the boundary for my motion on the x-plane.

When I plot a point rotating around the perimeter of my Ellipse I get my desired changing velocity depending on the distance to the foci; shown in this:

https://gyazo.com/9430d22ff4d6f38f2d5bcf381a06db76

However it appears that the point is rotating faster near the ambiguous foci and not the true foci. How can I reverse my function so that the point will move faster near my (0,0) coordinate and slower when it moves further away, instead of the opposite?

In my recent exploration of Elliptic Function, Curves and Motion I have come upon a handy equation for creating orbital motion.

Essentially I construct a trigonometric function and use the max distance to foci as the boundary for my motion on the x-plane.

When I plot a point rotating around the perimeter of my Ellipse I get my desired changing velocity depending on the distance to the foci; shown in this:

https://gyazo.com/9430d22ff4d6f38f2d5bcf381a06db76

However it appears that the point is rotating faster near the ambiguous foci and not the true foci. How can I reverse my function so that the point will move faster near my (0,0) coordinate and slower when it moves further away, instead of the opposite?