# Shutlining
## Shutlining
Shut lining constructs a shut-line (parting line) display mesh for surfaces, polysurfaces, or meshes.
Simple car model without shut lining (left) and with shut lining (right).
### **Note**
* A shut line is the clearance gap between two adjacent surfaces such as between the door opening and body panel of an automobile or where a lid fits into the body of a tea kettle.
* Shut Lining settings appears as an object property of the surface.
* Surfaces inside blocks cannot be selected.
### **Steps**
1. Select objects to shut line and press Enter.
2. Select curves that define the shut line and press Enter.
3. Press Enter to apply shut lining.
***
### **Shutlining properties**
Manages shut lining (parting line) properties for the selected objects.
**On**\
Turns the shut lining on and off.
#### **Curves**
**Name**\
Specifies the names of the shut lining curves on the selected surface.
See: [Naming conventions in Rhino](https://docs.mcneel.com/rhino/8/help/en-us/information/namingconventions.htm)
**Add**\
Adds additional shut line curves.
**Remove**\
Removes curves from shut line process.
\
**Curve properties**
**Radius**\
Specifies the thickness of the shut line radius. The radius is the measured from the curve to the surface of the shut line.
\
**Profile**
* **RoundGroove**: Displays the shut line as a round groove.\
* **Filleted**: Displays the shut line as a filleted groove.\
* **SharpGroove**: Displays the shut line as a sharp groove.\
* **Pull curve to object**: Curves are pulled onto the object before making a shut line.
* **Raised**: Raises the profile instead of making an indented line.
**Faceted**\
Toggles between smoothly shaded shut line and a flat-shaded shut line.
**AutoUpdate**\
All changes to Shut Lining settings are instantly applied to object. Clear the check box to make multiple changes without having to wait for shut lining process to finish.
***
For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/properties/shutlining.htm?Highlight=Shutlining).
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