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

# chartLineStyleScale(domain:mapping:)

Configures the line style scale for charts.

## Declaration

```swift
nonisolated func chartLineStyleScale<Domain>(domain: Domain, mapping: @escaping (Domain.Element) -> StrokeStyle) -> some View where Domain : Collection, Domain.Element : Plottable

```

## Parameters

- `domain`: The possible data values plotted as line style in the chart.
- `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(mapping:)](swiftui/view/chartlinestylescale(mapping:).md)