Conic sections
Height:
Angle:
Type:
Help
Depending on the height and the angle of the plane, its intersection with the double cone is a circle, an ellipse, a parabola, a hyperbola, or a degenerate conic (point, straight lines).
Press
W
and
S
to move the plane up and down.
Press
A
and
D
to rotate the plane.
Use the mouse to orbit the camera.
Use the mouse wheel to zoom.