LinearGaugeRange constructor
      const
      LinearGaugeRange({ 
    
- Key? key,
- double startValue = 0,
- double? midValue,
- double endValue = 100,
- double startWidth = 5.0,
- double endWidth = 5.0,
- double? midWidth,
- Color? color,
- ShaderCallback? shaderCallback,
- LinearRangeShapeType rangeShapeType = LinearRangeShapeType.flat,
- LinearEdgeStyle edgeStyle = LinearEdgeStyle.bothFlat,
- LinearElementPosition position = LinearElementPosition.outside,
- Widget? child,
Creates a new range in linear gauge.
Implementation
const LinearGaugeRange({
  Key? key,
  this.startValue = 0,
  double? midValue,
  this.endValue = 100,
  this.startWidth = 5.0,
  this.endWidth = 5.0,
  double? midWidth,
  this.color,
  this.shaderCallback,
  this.rangeShapeType = LinearRangeShapeType.flat,
  this.edgeStyle = LinearEdgeStyle.bothFlat,
  this.position = LinearElementPosition.outside,
  Widget? child,
}) : assert(startValue <= endValue),
     midValue = midValue ?? startValue,
     midWidth = midWidth ?? startWidth,
     super(key: key, child: child);