The user can create an extruded solid geometry by the following procedure.
•Profile, Distance
•Profile: Selects a closed-loop profile.
•Distance: Defines a distance of the extruding length.
•Surface, Direction, Distance
•Surface: Select a surface.
•Direction: Defines the direction of the extrude.
•Distance: Defines a distance of the extruding length.
•WithDialog
•WithDialog: Extrude dialog box is shown. The solid is created by clicking OK in the Extrude dialog box.

Figure 2 Extrude dialog box
o Color: Specifies the color of the solid to be created.
o Direction: Defines the extruding direction for the extruded solid geometry.
o Distance: Defines a distance of the extruding length.
o Add/Remove: Selects several faces of any geometries as the user wants to add or remove.
o Add/Remove (Continuous): When using Add/Remove, if this option is checked, the connected faces within the degrees are selected together.
o Tolerance (Degrees): The angle of between the connected two faces.
o Preview: Previews the solid to be created on Working Window.
o Update: Update the preview.