# SectorPlot Chart content that represents a collection of data using a sector of a pie or donut chart, which shows how individual categories make up a meaningful total. ``` struct SectorPlot ``` ## Overview Use `SectorPlot` when you want to visualize data in the same way as with [`SectorMark`](/documentation/Charts/SectorMark), but you want to visualize an entire data collection with a single plot. You can initialize and style the plot with simple values or key paths. Add modifiers with `KeyPath` before adding modifiers with simple values. ``` SectorPlot( votes, angle: .value("Vote count", \.voteCount), angularInset: 1 ) .foregroundStyle(by: .value("Party", \.party)) .cornerRadius(4) ``` ## Topics ### Plotting sectors from a collection [`init(_:angle:innerRadius:outerRadius:angularInset:)`](/documentation/Charts/SectorPlot/init(_:angle:innerRadius:outerRadius:angularInset:)-1ed01) [`init(_:angle:innerRadius:outerRadius:angularInset:)`](/documentation/Charts/SectorPlot/init(_:angle:innerRadius:outerRadius:angularInset:)-9pmo7) ### Supporting types [`body`](/documentation/Charts/ChartContent/body-swift.property) The content and behavior of the chart content. [`VectorizedSectorPlotContent`](/documentation/Charts/VectorizedSectorPlotContent) An opaque vectorized chart content type. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)