title: Gradient Fill in Swift for iOS-Charts
body: <p>I am trying to create a nice gradient fill as seen in the demos on the ios-charts page.  However, I cannot figure this out in swift vs obj-c.
  Here is the obj-c code:</p>
  
  <pre><code>NSArray *gradientColors = @[
                      (id)[ChartColorTemplates colorFromString:@"#00ff0000"].CGColor,
                      (id)[ChartColorTemplates colorFromString:@"#ffff0000"].CGColor
                      ];
  CGGradientRef gradient = CGGradientCreateWithColors(nil, (CFArrayRef)gradientColors, nil);
  
  set1.fillAlpha = 1.f;
  set1.fill = [ChartFill fillWithLinearGradient:gradient angle:90.f];
  </code></pre>
  
  <p>Now here is my version of that in swift:</p>
  
  <pre><code>    let gradColors = [UIColor.cyanColor().CGColor, UIColor.init(red: 0.0, green: 0.0, blue: 0.0, alpha: 0.0)]
      let colorLocations:[CGFloat] = [0.0, 1.0]
      let gradient = CGGradientCreateWithColors(CGColorSpaceCreateDeviceRGB(), gradColors, colorLocations)
  </code></pre>
  
  <p>What I am missing is the :
  Chart Fill fillWithLinearGradient</p>
  
  <p>I can't find the fillWithLinearGradient in the pod anywhere so I am a bit confused.</p>
  
  <p>Thanks in advance for any help!
  Rob</p>