Ellipse

Parabola | Edwin's Animated Images | Hyperbola |

After completing the Parabola Generator, I realized the
Ellipse and Hyperbola could be generated with modifications to
the same device. These modifications change the basic
parameters that describe conic sections - the distance from
the directrix to the vertex (vD) and the distance from the
vertex to the focus (vF).

The eccentricity of a conic section is determined by dividing vF by vD.

To make the animations easier to draw, I used multiples of vD and vF for the compasses settings.

More Conic Section definitions are on the Hyperbola page.

The eccentricity of a conic section is determined by dividing vF by vD.

- A value < 1 describes an ellipse.
- A value = 1 describes a parabola.
- A value > 1 describes a hyperbola.

To make the animations easier to draw, I used multiples of vD and vF for the compasses settings.

More Conic Section definitions are on the Hyperbola page.