# RegionLoop class

Namespace: [Grasshopper2.Types.Shapes](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.types.shapes.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public sealed class RegionLoop
```

One closed loop of a rolling-ball region boundary.

## Properties

- [IsHole](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.shapes.regionloop/ishole.md): Whether this loop bounds a hole rather than an outer boundary.
- [Segments](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.shapes.regionloop/segments.md): The segments of the loop, in order and joined end to end.

## Methods

- [ToPolyCurve](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.shapes.regionloop/topolycurve.md): Joins the segments into a single closed curve.