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add open zoom #3

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add open zoom #3

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5 changes: 4 additions & 1 deletion Demo/ViewController.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,10 @@ class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()

wave = WaveAnimationView(frame: CGRect(origin: .zero, size: lapView.bounds.size), color: UIColor.blue.withAlphaComponent(0.5))
wave = WaveAnimationView(frame: CGRect(origin: .zero, size: CGSize(width: 64, height: 64)), color: UIColor.orange.withAlphaComponent(0.5))
wave.waveHeight = 7
wave.waveDelay = 300
wave.zoom = 0.15
lapView.addSubview(wave)
//superView.addSubView(WaveAnimationView)
wave.startAnimation()
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3 changes: 2 additions & 1 deletion WaveAnimationView/WaveAnimationView.swift
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Expand Up @@ -48,6 +48,7 @@ public class WaveAnimationView: UIView {

open var waveHeight: CGFloat = 15.0 //3.0 .. about 50.0 are standard.
open var waveDelay: CGFloat = 300.0 //0.0 .. about 500.0 are standard.
open var zoom: CGFloat = 1.0

open var frontColor: UIColor!
open var backColor: UIColor!
Expand Down Expand Up @@ -134,7 +135,7 @@ public class WaveAnimationView: UIView {
private func drawSin(path: UIBezierPath, time: CGFloat, delay: CGFloat) {

let unit:CGFloat = 100.0
let zoom:CGFloat = 1.0
let zoom:CGFloat = self.zoom
var x = time
var y = sin(x)/zoom
let start = CGPoint(x: yAxis, y: unit*y+xAxis)
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