Allow PieChartView to hide value line for tiny slices in Swift

Question

I\'m building a pie chart by chart iOS framework. I\'m able to hide the value and label when the the slice is tiny but I can\'t hide the value line for tiny slice.

Answer 1

Inside the file PieChartRenderer change from this:

 if dataSet.valueLineColor != nil        
 {
    context.setStrokeColor(dataSet.valueLineColor!.cgColor)
    context.setLineWidth(dataSet.valueLineWidth)

    context.move(to: CGPoint(x: pt0.x, y: pt0.y))
    context.addLine(to: CGPoint(x: pt1.x, y: pt1.y))
    context.addLine(to: CGPoint(x: pt2.x, y: pt2.y))

    context.drawPath(using: CGPathDrawingMode.stroke)

 }

to this:

 if dataSet.valueLineColor != nil
 {

     if(valueText == "") {
         context.setStrokeColor(UIColor.clear.cgColor)
     }
     else {
         context.setStrokeColor(dataSet.valueLineColor!.cgColor)
     }

     context.setLineWidth(dataSet.valueLineWidth)

     context.move(to: CGPoint(x: pt0.x, y: pt0.y))
     context.addLine(to: CGPoint(x: pt1.x, y: pt1.y))
     context.addLine(to: CGPoint(x: pt2.x, y: pt2.y))

     context.drawPath(using: CGPathDrawingMode.stroke)
 }

The change basically checks if the valueText is the empty string, and if so it changes the linecolor to a clear color.