addEntryOrdered method
Implementation
@override
void addEntryOrdered(T? e) {
if (e == null) return;
_values ??= List<T>.empty(growable: true);
calcMinMax1(e);
if (_values!.isNotEmpty && _values![_values!.length - 1].x > e.x) {
int closestIndex = getEntryIndex1(e.x, e.y, Rounding.up);
_values!.insert(closestIndex, e);
} else {
_values!.add(e);
}
}