Construction Entities
In SolidWorks, any sketch entity can be specified for construction.
Points and centerlines are always construction entities only.
Use a centerline as the axis about which a
sketch revolves to create a base feature, or to mirror sketch entities. |

|
SolidWorks also has Reference Geometry (planes, axes, and coordinate
systems) as a basis for creating features outside of sketches.
Use planes to construct a series of sketches
as the basis for a loft feature. |

|
See SolidWorks Tutorials: Revolves and Sweeps
See SolidWorks Tutorials: Lofts
Related SolidWorks Topics
Reference Geometry
Construction Geometry