inputRelativeTemperature property
Relative temperature of the input color. See relativeTemperature.
Implementation
double get inputRelativeTemperature {
  if (_inputRelativeTemperature >= 0.0) {
    return _inputRelativeTemperature;
  }
  final coldestTemp = tempsByHct[coldest]!;
  final range = tempsByHct[warmest]! - coldestTemp;
  final differenceFromColdest = tempsByHct[input]! - coldestTemp;
  final inputRelativeTemp =
      (range == 0.0) ? 0.5 : differenceFromColdest / range;
  _inputRelativeTemperature = inputRelativeTemp;
  return _inputRelativeTemperature;
}