Doc:Glossary/Curve

Curve

Is a class of objects. There are five primitives in the class:

1. Bezier curve
2. Bezier circle
3. NURBS curve
4. NURBS circle
5. Path

These seemingly simple primitives can be used to produce objects of complex shape, such as a helical tube of almost any cross-section shape or an extruded shape, like an embossed logo. Any object derived from the primitives is a curve object unless or until it is converted to an object of the mesh class. If not converted, it cannot interact with objects of the mesh class in such as boolean operations.