valueToFactor method
Returns converted factor value from the axis value.
The arguments to this method is axis value. The calculated value of the factor should be between 0 and 1. If the axis range from 0 to 100 and pass the axis value is 50, this method return factor value is 0.5. Overriding method, you can modify the factor value based on needs.
Implementation
@override
double? valueToFactor(double value) {
return null;
}