---
title: "init(frequency:)"
framework: gameplaykit
role: symbol
role_heading: Initializer
path: "gameplaykit/gkcylindersnoisesource/init(frequency:)"
---

# init(frequency:)

Initializes a cylinder noise source with the specified frequency.

## Declaration

```swift
init(frequency: Double)
```

## Parameters

- `frequency`: The initial value for the frequency property, which determines the size and spacing of concentric cylinders.

## Return Value

Return Value A new noise source.

## Discussion

Discussion To make use of this noise source, create a GKNoise object from it (and optionally apply operations to that noise object or combine it with other noise objects). Then create a GKNoiseMap object from your noise object, generating a concrete field of values that you can sample from directly or visualize using the SKTexture or SKTileMap class.

## See Also

### Creating a Noise Source

- [cylindersNoise(withFrequency:)](gameplaykit/gkcylindersnoisesource/cylindersnoise(withfrequency:).md)