perfectly horizontal or perfectly vertical straight-line paths are not being calculated properly.

[kashif-izhar]

It seems perfectly horizontal or perfectly vertical straight-line paths are not being calculated properly.

For example below results in false

topLeft = CGPoint(x: 0, y: 0)
topRight = CGPoint(x: 100, y: 0)
let path = UIBezierPath()
path.move(to: topLeft)
path.addLine(to: topRight)
let lineLayer = CAShapeLayer()
lineLayer.path = path.cgPath
lineLayer.strokeColor = UIColor.orange.cgColor
lineLayer.lineWidth = 1.0
self.view.layer.addSublayer(lineLayer)

print(lineLayer.path.intersects(drawnPath))       // drawnPath is cgPath of hand drawn UIBezierPath()

but if you change to

topLeft = CGPoint(x: 0, y: 1)

then the line is not perfectly horizontal anymore and result is true

[calda]

Can you share a sample project that reproduces this issue?

[kashif-izhar]

CoolDraw.zip

[calda]

Fixed in 17fd2ab