---
title: "init(coder:device:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsimageeuclideandistancetransform/init(coder:device:)"
---

# init(coder:device:)

Creates a Euclidean distance transform that uses a specified decoder for your data and runs on a specified device.

## Declaration

```swift
init?(coder aDecoder: NSCoder, device: any MTLDevice)
```

## Parameters

- `aDecoder`: The decoder for your data.
- `device`: The device that the filter runs on.

## Discussion

Discussion Use this initializer to specify the location of your data; otherwise, the framework may guess incorrectly.

## See Also

### Creating a Euclidean distance transform

- [init(device:)](metalperformanceshaders/mpsimageeuclideandistancetransform/init(device:).md)