swift-graphics

2.0.1

Cross-platform 2D graphics library for Swift
fwcd/swift-graphics

What's New

Version 2.0.1

2023-01-01T22:02:17Z

Swift Graphics

Build

2D drawing library for Swift with multiple backends, currently including

  • Cairo (cross-platform)
  • Core Graphics (Apple platforms)

Example

import PlatformGraphics
import Utils

// Create a new image and a graphics context
let ctx = try PlatformGraphicsContext(width: 300, height: 300)

// Draw some shapes
ctx.draw(line: LineSegment(fromX: 20, y: 20, toX: 50, y: 30))
ctx.draw(rect: Rectangle(fromX: 80, y: 90, width: 10, height: 40, color: Colors.yellow))
ctx.draw(text: Text("Test", at: Vec2(x: 0, y: 15)))
ctx.draw(ellipse: Ellipse(centerX: 150, y: 80, radius: 40))

// Encode the image to a byte buffer
let image = try ctx.makeImage()
let data = try image.pngEncoded()

The full example can be found in Snippets/DrawShapes.swift. To run it, invoke

swift run DrawShapes

The resulting PNG will be written to Output/shapes.png.

System Dependencies

  • Swift 5.7+
  • For the Cairo backend (required on Linux, optional on macOS):
    • Debian: apt-get install libcairo2-dev
    • macOS: brew install cairo

Building

swift build

Testing

swift test

Description

  • Swift Tools 5.7.0
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Dependencies

Last updated: Sun Jul 14 2024 05:44:18 GMT-0900 (Hawaii-Aleutian Daylight Time)