# SurfaceDirectionIndicators 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 SurfaceDirectionIndicators : IDisposable
```

Surface direction indicators can be drawn by a display pipeline.

## Constructors

- [SurfaceDirectionIndicators](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.surfacedirectionindicators/ctor.md): (3 overloads) Construct for a Brep face.

## Finalizer

- [~SurfaceDirectionIndicators](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.surfacedirectionindicators/finalize.md)

## Properties

- [IsValid](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.surfacedirectionindicators/isvalid.md): Returns true if this instance is valid. The geometry that was used to create may not have been garbage collected.

## Methods

- [Dispose](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.surfacedirectionindicators/dispose.md): (2 overloads) Actively reclaims unmanaged resources that this instance uses.
- [Draw](https://developer.rhino3d.com/api/rhinocommon/type/rhino.geometry.surfacedirectionindicators/draw.md): Draw the surface directions.