# BrepRegionFaceSide class

Namespace: [Rhino.Geometry](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.geometry.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public class BrepRegionFaceSide : CommonObject
```

Represents a side of a [BrepRegion](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregion.md) entity.

## Properties

- [Brep](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregionfaceside/brep.md): The brep this side belongs to.
- [Face](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregionfaceside/face.md): Gets the face this side belongs to.
- [Region](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregionfaceside/region.md): The region this side belongs to.
- [SurfaceNormalPointsIntoRegion](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregionfaceside/surfacenormalpointsintoregion.md): Gets true if BrepFace's surface normal points into region; false otherwise.

## Methods

- [NonConstOperation](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.brepregionfaceside/nonconstoperation.md)

## Inherited Members

- From [CommonObject](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject.md): [Disposed](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/disposed.md), [HasUserData](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/hasuserdata.md), [IsDocumentControlled](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/isdocumentcontrolled.md), [IsValid](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/isvalid.md), [UserData](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/userdata.md), [UserDictionary](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/userdictionary.md), [ConstructConstObject](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/constructconstobject.md), [Dispose](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/dispose.md), [EnsurePrivateCopy](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/ensureprivatecopy.md), [GetObjectData](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/getobjectdata.md), [IsValidWithLog](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/isvalidwithlog.md), [OnSwitchToNonConst](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/onswitchtononconst.md), [ToJSON](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.commonobject/tojson.md)