Created
February 14, 2019 05:09
-
-
Save ecoopnet/8638cc8d4bd9d3f8e4db1326da30fc8f to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import Foundation | |
| extension CGPoint { | |
| // CGPoint -> Point<Double> に変換 | |
| func toPoint() -> Point<Double> { | |
| return Point<Double>(x: Double(x), y: Double(y)) | |
| } | |
| } | |
| extension CGSize { | |
| // CGSize -> Size<Double> に変換 | |
| func toSize() -> Size<Double> { | |
| return Size<Double>(width: Double(width), height: Double(height)) | |
| } | |
| } | |
| extension CGRect { | |
| // CGRect -> Size<Double> に変換 | |
| func toRect() -> Rect<Double> { | |
| return Rect<Double>(origin: origin.toPoint(), size: size.toSize()) | |
| } | |
| } | |
| extension Quadrilateral { | |
| // 外接矩形(circumscribed rectangle)を得る | |
| func toRect() -> Rect<Double> { | |
| let xList = [ | |
| Double(topLeft.x), Double(topRight.x), | |
| Double(bottomLeft.x), Double(bottomRight.x)] | |
| let yList = [ | |
| Double(topLeft.y), Double(topRight.y), | |
| Double(bottomLeft.y), Double(bottomRight.y)] | |
| let origin = Point<Double>(x: xList.min()!, y: yList.min()!) | |
| let size = Size<Double>( | |
| width: xList.max()! - origin.x, | |
| height: yList.max()! - origin.y) | |
| return Rect<Double>(origin: origin, size: size) | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // ２次元座標系のモノを表すのに使えるドメインモデル | |
| // CGPoint, CGSize, CGRect などに互換 | |
| import Foundation | |
| /// ２次元座標上の１点を表すモデル | |
| struct Point<T: Numeric> { | |
| let x: T | |
| let y: T | |
| } | |
| /// ２次元のサイズを表すモデル | |
| struct Size<T: Numeric> { | |
| /// 幅 | |
| let width: T | |
| /// 高さ | |
| let height: T | |
| } | |
| // ２次元の矩形を表すモデル | |
| struct Rect<T: Numeric> { | |
| /// 矩形の起点(左上の座標) | |
| let origin: Point<T> | |
| /// 矩形のサイズ | |
| let size: Size<T> | |
| /// 左端のX | |
| var left: T { return origin.x } | |
| /// 右端のX | |
| var right: T { return origin.x + size.width } | |
| /// 上端のY | |
| var top: T { return origin.y } | |
| /// 下端のY | |
| var bottom: T { return origin.y + size.height } | |
| /// 左上の座標 | |
| var topLeft: Point<T> { return origin } | |
| /// 右下の座標 | |
| var bottomRight: Point<T> { return Point( x: right, y: bottom) } | |
| /// 右上の座標 | |
| var topRight: Point<T> { return Point(x: right, y: top) } | |
| /// 左下の座標 | |
| var bottomLeft: Point<T> { return Point(x: left, y: bottom) } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment