# Cylinder

## <img src="https://3375153115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5uhW8FwQpXQj8tHUULMo%2Fuploads%2FMXmbZVTD7tMScVr1LzWv%2FG1_02_SOLID_CYLINDER.png?alt=media&#x26;token=1b96aabe-567c-4689-9e75-fad267c5549b" alt="" data-size="line"> Cylinder <a href="#profiles" id="profiles"></a>

The Cylinder command draws an Extrusion cylinder.

#### Command-line options

* DirectionConstraint: Direction constraints restrict the direction of the cylinder.

  1.None: Pick or type a number to set the height.

  2.Vertical: Creates a cylinder perpendicular to the construction plane

  3.AroundCurve: Draws the base circle perpendiculart to the picked point on a curve. The center line of the cylinder will be tangent to the curve.
* Solid: Caps the top and bottom openings or leave them open.
* Radius: Draw the base circle by picking the center point and a radius point.
* 2Point: Draws the base circle from two opposite points.
* 3Point: Draws the base circle through three points.
* Tangent: Draws the base circle tangent to one, two, or three curves.
* FitPoints: Draws the base circle by fitting to selected points, control points, or mesh vertices.
* BothSides: Creates a cylinder symmetrical across the base circle. The height of the cylinder is twice as long as you specify.

**Steps**

1. Draw the base circle.
2. Pick a location or type a number to set the height.

   The DirectionConstraint options define the positive height differently.

For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/commands/cylinder.htm?Highlight=Cylinder).