domainValue method

@override String domainValue(covariant num rangeData)

Implementation

@override
String domainValue(num rangeData) {
  num diff = range.last - range.first;
  num interval = diff / domain.length;
  int diff2 = (rangeData - range.first) ~/ interval;
  if(diff2<0){diff2=0;}
  if(diff2>=domain.length){
    diff2=domain.length-1;
  }
  return domain[diff2];
}