Examples>HSB
HSB Colors
This example shows how to create colors using hue, saturation, and brightness values.
let color = Color(hue: 0.0, saturation: 1.0, brightness: 1.0, alpha: 1.0)Compare the values of this approach to those in the RGB example.
Example
var red, green, blue: Shape!
override func setup() {
setupShapes()
setupLabels()
red.fillColor = Color(hue: 0.0, saturation: 1.0, brightness: 1.0, alpha: 1.0)
green.fillColor = Color(hue: 0.33, saturation: 1.0, brightness: 1.0, alpha: 1.0)
blue.fillColor = Color(hue: 0.66, saturation: 1.0, brightness: 1.0, alpha: 1.0)
}
func setupShapes() {
let frame = Rect(0, 0, canvas.width*0.9, canvas.height/5)
red = Rectangle(frame: frame)
green = Rectangle(frame: frame)
blue = Rectangle(frame: frame)
red.lineWidth = 0.0
green.lineWidth = 0.0
blue.lineWidth = 0.0
let dy = Vector(x: 0, y: canvas.height/4)
red.center = canvas.center - dy
green.center = canvas.center
blue.center = canvas.center + dy
canvas.add(red)
canvas.add(green)
canvas.add(blue)
}
func setupLabels() {
let f = Font(name: "Helvetica", size: 30.0)!
var l = TextShape(text: "{HSBA} : {0.0, 1.0, 1.0, 1.0}", font: f)!
l.fillColor = white
l.center = red.center
self.canvas.add(l)
l = TextShape(text: "{HSBA} : {0.33, 1.0, 0, 1.0}", font: f)!
l.fillColor = white
l.center = green.center
self.canvas.add(l)
l = TextShape(text: "{HSBA} : {0.66, 1.0, 1.0, 1.0}", font: f)!
l.fillColor = white
l.center = blue.center
self.canvas.add(l)
}