https://github.com/tribalworldwidelondon/CassowarySwift

A Swift port of the Cassowary linear constraint solver
https://github.com/tribalworldwidelondon/CassowarySwift

cassowary constraint-solver swift

Last synced: 26 days ago
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A Swift port of the Cassowary linear constraint solver

• Host: GitHub
• URL: https://github.com/tribalworldwidelondon/CassowarySwift
• Owner: tribalworldwidelondon
• License: bsd-3-clause
• Created: 2017-08-17T10:35:48.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2019-02-19T18:20:17.000Z (over 5 years ago)
• Last Synced: 2024-04-02T07:22:18.047Z (about 2 months ago)
• Topics: cassowary, constraint-solver, swift
• Language: Swift
• Homepage:
• Size: 42 KB
• Stars: 111
• Watchers: 3
• Forks: 15
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-swift - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swift - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swifty - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swiftqq - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swift4 - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swiftxx - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• fucking-awesome-swift - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swifte - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)
• awesome-swift - Cassowary - A linear constraint solving library using the same algorithm as AutoLayout. (Libs / Layout)

README

        
# Cassowary Swift

[![Build Status](https://travis-ci.org/tribalworldwidelondon/CassowarySwift.svg?branch=master)](https://travis-ci.org/tribalworldwidelondon/CassowarySwift)

A Swift port of the Cassowary linear constraints solver. Tested on OS X, iOS and Linux.

# Example usage

```swift

let solver = Solver()

let left =  Variable("left")

let mid =   Variable("mid")

let right = Variable("right")

try solver.addConstraint(mid == (left + right) / 2)

try solver.addConstraint(right == left + 10)

try solver.addConstraint(right <= 100)

try solver.addConstraint(left >= 0)

solver.updateVariables()

// left.value is now 90.0

// mid.value is now 95.0

// right.value is now 100.0

try solver.addEditVariable(variable: mid, strength: Strength.STRONG)

try solver.suggestValue(variable: mid, value: 2)

solver.updateVariables()

// left.value is now 0.0

// mid.value is now 5.0

// right.value is now 10.0

```

# Documentation

[Documentation can be found on CocoaDocs](http://cocoadocs.org/docsets/Cassowary)

# Acknowledgements

Cassowary Swift originally started as a direct port of [kiwi-java](https://github.com/alexbirkett/kiwi-java) by [Alex Birkett](https://github.com/alexbirkett)