The Sweep command requires that exactly one database curve or boundary be selected, along with any combination of any entity types other than database curves or boundaries, for the command to be available. This command will create a swept or extruded surface by sweeping the selected curve or boundary, called a generatrix, along a direction and distance defined by the rail. Database boundaries (u-min, u-max, v-min and v-max curves) are also created and are considered child entities to the swept surface.
Select the database curve or boundary that will serve as the generatrix curve, then Create, Sweep. Select the rail curve or define a rail using two points. Flip the direction of the surface if necessary. Click on OK to save the surface and close the panel.
The Sweep panel provides a Flip command at top to reverse the direction of a swept surface when necessary. In the Currently Defining frame you can choose whether you are currently selecting a new Generatrix to be swept or defining a new Rail to sweep along. The Rail Selection frame provides an option for selecting a Curve from the Display window or the List panel. Alternatively, you can define the rail by 2 Points either via picking in the Display window or direct text entry in the XYZ text field. Buttons are provided at the bottom of this frame to Delete Last Point when using the 2 Points option, or to restart the rail definition via Clear Rail.