swift-charts-advanced

Build sophisticated Swift Charts with custom axes, collision handling, and GeometryReader layouts.

Updated Oct 4, 2025

Search Tags:#charts #swift #swiftui #data-visualization #collision-detection #axis-marks #geometryreader

Ready to run

npx skills add https://github.com/NickChristensen/HealthTrends --skill swift-charts-advanced

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: swift-charts-advanced
Source: https://github.com/NickChristensen/HealthTrends/tree/main/.agents/skills/swift-charts-advanced
Command: npx skills add https://github.com/NickChristensen/HealthTrends --skill swift-charts-advanced

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Complex Swift Charts implementations require patterns beyond basic marks and straightforward layouts. This Skill provides expert guidance for building sophisticated charts with custom axis marks, label collision handling, and performance-aware composition.

Core Features & Use Cases

Advanced axis customization: create and couple AxisMarkBuilder patterns for precise labeling.
Collision-aware labeling: detect and gracefully hide overlapping time labels to maintain readability.
GeometryReader integration: compute layout in SwiftUI and apply to Chart positioning.
Multi-mark composition: combine LineMark, RuleMark, and PointMark with @ChartContentBuilder for modular charts.
Performance considerations: precompute constants, downsample data, and minimize layout recalculations.

Quick Start

Create a sample SwiftUI Chart demonstrating advanced Swift Charts patterns (custom axis marks, label collision handling, and GeometryReader integration) using a provided dataset, and render it in a single reusable view.

Frequently Asked Questions about swift-charts-advanced

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I handle label collision detection in Swift Charts so overlapping time labels stay readable?▼

Label collision detection in Swift Charts is handled by detecting overlapping time labels and gracefully hiding them to maintain readability. This approach ensures custom axis marks remain legible without manual offset calculations.

How do I combine LineMark, RuleMark, and PointMark in a single SwiftUI chart?▼

Combine LineMark, RuleMark, and PointMark in SwiftUI charts using @ChartContentBuilder for multi-mark composition. This enables modular chart creation by layering multiple mark types within one chart view.

How does GeometryReader integration work for computing Swift Charts layout in SwiftUI?▼

GeometryReader integration computes layout in SwiftUI and applies those measurements to Chart positioning. This allows precise placement of chart elements by reading container dimensions and passing values to chart content.

What's the best way to create custom axis labels in Swift Charts using AxisMarkBuilder?▼

Create custom axis labels in Swift Charts by coupling AxisMarkBuilder patterns for precise labeling. This method defines expected code structure for axis marks, enabling tailored tick formatting and conditional label rendering.

How do I improve Swift Charts performance when rendering large datasets in SwiftUI?▼

Improve Swift Charts performance by precomputing constants, downsampling data, and minimizing layout recalculations. These performance-aware composition techniques reduce rendering overhead for complex, multi-mark chart views.