Hexagon.swift

import SwiftUI

struct FixedHexagon: View {
  var body: some view { Hexagon().aspectRatio(2/sqrt(3), contentMode: .fit) }
}

struct Hexagon: Shape {
	func path(in rect: CGRect) -> Path {
		Path { path in
			let width = rect.size.width
			let height = rect.size.height
			let height4 = height/4
			func line(x: CGFloat, y: CGFloat) {
				path.addLine(to: CGPoint(x: x, y: y))
			}
			path.move(to: .zero)
			path.addLine(to: CGPoint(x: width/2, y: 0))
			path.addLine(to: CGPoint(x: width,   y: height4))
			path.addLine(to: CGPoint(x: width,   y: height4*3))
			path.addLine(to: CGPoint(x: width/2, y: height))
			path.addLine(to: CGPoint(x: 0,       y: height4*3))
			path.addLine(to: CGPoint(x: 0,       y: height4))
			path.addLine(to: CGPoint(x: width/2, y: 0))
		}
	}
}