---
title: emissionRange
framework: quartzcore
role: symbol
role_heading: Instance Property
path: quartzcore/caemittercell/emissionrange
---

# emissionRange

The angle, in radians, defining a cone around the emission angle. Animatable.

## Declaration

```swift
var emissionRange: CGFloat { get set }
```

## Discussion

Discussion Cells are uniformly distributed across this cone. The default value of this property is 0.

## See Also

### Setting Emitter Cell Motion Attributes

- [spin](quartzcore/caemittercell/spin.md)
- [spinRange](quartzcore/caemittercell/spinrange.md)
- [emissionLatitude](quartzcore/caemittercell/emissionlatitude.md)
- [emissionLongitude](quartzcore/caemittercell/emissionlongitude.md)