Custom cross-hatched background shape or view in SwiftUI

Question

I am trying to create a shaded cross-hatched. But so far I can do it by adding a Image.

How can I create a custom view in which lines will be drawn and not filled with a Image?

import SwiftUI

struct ContentView: View {

    var body: some View {
        ZStack {
            Image("lineFilledBG").resizable().clipShape(Circle())
            Circle().stroke()
            Circle().foregroundColor(.yellow).opacity(0.3)
        }
    }
}


struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

This is how it looks now. Want lines to draw on top of another view or shape, without adding opacity and image pattern filling.

Answer 1

Thank to Cenk Bilgen for stripe pattern. Tweaked a bit so that you can rotate the hatch for any shape.

import SwiftUI
import CoreImage.CIFilterBuiltins

extension CGImage {

    static func generateStripePattern(
        colors: (UIColor, UIColor) = (.clear, .black),
        width: CGFloat = 6,
        ratio: CGFloat = 1) -> CGImage? {

    let context = CIContext()
    let stripes = CIFilter.stripesGenerator()
    stripes.color0 = CIColor(color: colors.0)
    stripes.color1 = CIColor(color: colors.1)
    stripes.width = Float(width)
    stripes.center = CGPoint(x: 1-width*ratio, y: 0)
    let size = CGSize(width: width, height: 1)

    guard
        let stripesImage = stripes.outputImage,
        let image = context.createCGImage(stripesImage, from: CGRect(origin: .zero, size: size))
    else { return nil }
    return image
  }
}

extension Shape {

    func stripes(angle: Double = 45) -> AnyView {
        guard
            let stripePattern = CGImage.generateStripePattern()
        else { return AnyView(self)}

        return AnyView(Rectangle().fill(ImagePaint(
            image: Image(decorative: stripePattern, scale: 1.0)))
        .scaleEffect(2)
        .rotationEffect(.degrees(angle))
        .clipShape(self))
    }
}

And usage

struct ContentView: View {

    var body: some View {
        VStack {
            Rectangle()
                .stripes(angle: 30)
            Circle().stripes()
            Capsule().stripes(angle: 90)
        }
    }
}

Output image link