6.1.4.3.5. Extrude Surface
It allows the user to create an extruded surface geometric entity by using a curve.
6.1.4.3.5.1. Modeling Options
The user can create an extruded surface geometry by the following procedure.
Profile, Distance
Profile: Selects a profile.
Distance: Defines the distance of the extruding length.
Curve, Direction, Distance
Curve: Selects a curve.
Direction: Defines the extruding direction for the extruded surface geometry.
Distance: Defines the distance of the extruding length.
WithDialog
WithDialog: Extrude dialog box is shown. The surface is created by clicking OK in the Extrude dialog box.
Figure 6.76 Extrude dialog box
Color: Specifies the color of the surface to be created.
Direction: Defines the extruding direction for the extruded surface geometry.
Distance: Defines the distance of the extruding length.
Add/Remove: Selects several edges of any geometries as the user wants to add or remove.
Add/Remove (Continuous): When using Add/Remove, if this option is checked, the connected edges within the degrees are selected together.
Tolerance (Degrees): The angle of between the connected two edges.
Bi-Direction: If it is checked, Extrude together in the opposite direction of the extruding surface.
Preview: Previews the surface to be created on Working Window.
Update: Update the preview.
6.1.4.3.5.2. Properties
The user can modify the geometry information using the Extrude Surface Geometry property page.
![../_images/image1355.png](../_images/image1355.png)
Figure 6.77 Extrude Surface property page
Make Road Data: Defines the patch size for the road data. This option is activated in Ground Mode.
Depth: Defines the depth of the extruded surface geometry.
Bi-Direction: If it is checked, Extrude together in the opposite direction of the extruding surface.