---
title: "chartLineStyleScale(mapping:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/view/chartlinestylescale(mapping:)"
---

# chartLineStyleScale(mapping:)

Configures the line style scale for charts.

## Declaration

```swift
nonisolated func chartLineStyleScale<DataValue>(mapping: @escaping (DataValue) -> StrokeStyle) -> some View where DataValue : Plottable

```

## Parameters

- `mapping`: Maps data categories to line styles.

## See Also

### Line style scales

- [chartLineStyleScale(_:)](swiftui/view/chartlinestylescale(_:).md)
- [chartLineStyleScale(domain:)](swiftui/view/chartlinestylescale(domain:).md)
- [chartLineStyleScale(domain:range:)](swiftui/view/chartlinestylescale(domain:range:).md)
- [chartLineStyleScale(range:)](swiftui/view/chartlinestylescale(range:).md)
- [chartLineStyleScale(domain:mapping:)](swiftui/view/chartlinestylescale(domain:mapping:).md)