Color Saturation

The Goal

Function

func saturation(color,satval){
 var inputColor:Color = color
 var inputSat:float = Float(satval)
 var outputColor:Color = Color.hsba(inputColor.hue / 360, inputSat / 100, inputColor.brightness, inputColor.alpha)
 return outputColor
}

Takes two parameters:

• color: Color
• satval: Int

satval, represents a percentage of saturation required, value between 0 and 100

Example usage's

 self.bacgroundColor = saturation(self.backgroundColor,30)

 var value:Int = 100
 for(var x in self.subviews){
  x.backgroundColor = saturation(self.backgroundColor,value)
  value = value - 10
 }
 // assuming 10 subviews to create a gradient effect accross the views

Why

Creting a HSB based Color requires input values of 0 -1 for all 4 parameters, hue, sat, brightness, and alpa.

Reading a Color.hue: Returns a value between 0 - 360
Reading the reamaining 3 paramaters of a Color returns a value of 0 - 1

Project file

Download Grad Views Project File.