Reference Talk:Lemon

Opening paragraph needs a bit more information!

• How about something like the following for the text description?

New to version 3.7.1 the lemon object has been added. It is defined by two points in space where each point has an associated radius >=0 defining a disc. A third radius defines an outward spherical curvature connecting the two discs. This third radius must be >= the distance between the two points.

The radius of the discs at the two specified points can be zero. In such cases the shape takes on the form of an American football. Where the disc radius is 0 at one end and >0 at the other, the shape is more like an ogive. Where the disc radius is >0 at both ends, the shape looks something like a barrel.

Both the open and sturm object modifiers are supported.

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My try, could be mixed with your suggestion:

The lemon is similar to a cone, but instead of connecting with a straight line the two circles (see Reference:Cone ) , the connection is done with a circular arc whose radius is the Inner_radius in the lemon syntax.

--Le Forgeron 17:17, 15 September 2016 (UTC)

The third radius must be greater than the radius of the connecting disc with its center on the axis. (the exact equation is painful, but the parser will stop to tell you the smallest allowed value if the provided value is too small).

--Le Forgeron 17:23, 15 September 2016 (UTC)