DefinitionA <SOLID ECCENTRIC CONE> is a <BOUNDED FINITE SOLID> and a <SOLID PRIMITIVE>; it has a circular or ellipsoidal base; it has a finite dimension along an axis line running from the centre of the base; at each point on the axis, except the apex if any: a cross section taken parallel to the base is a replica of the base with a scaling proportional to the distance from the base; the principal axes of the cross section, if any, are aligned with the principal axes of the base; the axis is at the centre of the cross section