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

# chartSymbolSizeScale(domain:mapping:)

Configures the symbol size scale for charts.

## Declaration

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

```

## Parameters

- `domain`: The possible data values plotted as symbol size in the chart.
- `mapping`: Maps data categories to symbol sizes.

## See Also

### Symbol size scales

- [chartSymbolSizeScale(_:)](swiftui/view/chartsymbolsizescale(_:).md)
- [chartSymbolSizeScale(domain:range:type:)](swiftui/view/chartsymbolsizescale(domain:range:type:).md)
- [chartSymbolSizeScale(domain:type:)](swiftui/view/chartsymbolsizescale(domain:type:).md)
- [chartSymbolSizeScale(mapping:)](swiftui/view/chartsymbolsizescale(mapping:).md)
- [chartSymbolSizeScale(range:type:)](swiftui/view/chartsymbolsizescale(range:type:).md)
- [chartSymbolSizeScale(type:)](swiftui/view/chartsymbolsizescale(type:).md)