/// <summary>
/// Returns the range for the data points of the series.
/// </summary>
/// <param name="rangeConsumer">Consumer of the range.</param>
/// <returns>Range of values.</returns>
protected override Range <IComparable> IRangeProviderGetRange(IRangeConsumer rangeConsumer)
{
if (rangeConsumer == ActualDependentAxis)
{
IEnumerable <Range <double> > dependentValueRangesByIndependentValue = IndependentValueDependentValues
.Select(g => g.Where(d => ValueHelper.CanGraph(d)))
.Select(g => g.Scan(0.0, (s, t) => s + t).Skip(1).GetRange())
.DefaultIfEmpty(new Range <double>(0, 0))
.ToArray();
double minimum = dependentValueRangesByIndependentValue.Min(r => r.Minimum);
double maximum = dependentValueRangesByIndependentValue.Max(r => r.Maximum);
if (IsStacked100)
{
minimum = Math.Min(minimum, 0);
maximum = Math.Max(maximum, 0);
}
return(new Range <IComparable>(minimum, maximum));
}
else
{
return(base.IRangeProviderGetRange(rangeConsumer));
}
}
protected override Range <IComparable> IRangeProviderGetRange(IRangeConsumer rangeConsumer)
{
if (rangeConsumer == ActualDependentAxis)
{
var dependentValuesByIndependentValue = IndependentValueDependentValues.Select(e => e.ToArray()).ToArray();
var mostNegative = dependentValuesByIndependentValue
.Select(g => g.Where(v => v < 0)
.Sum())
.Where(v => v < 0)
.ToArray();
var leastNegative = dependentValuesByIndependentValue
.Select(g => g.Where(v => v <= 0)
.DefaultIfEmpty(1.0)
.First())
.Where(v => v <= 0)
.ToArray();
var mostPositive = dependentValuesByIndependentValue
.Select(g => g.Where(v => 0 < v)
.Sum())
.Where(v => 0 < v)
.ToArray();
var leastPositive = dependentValuesByIndependentValue
.Select(g => g.Where(v => 0 <= v)
.DefaultIfEmpty(-1.0)
.First())
.Where(v => 0 <= v)
.ToArray();
// Compute minimum
double minimum = 0;
if (mostNegative.Any())
{
minimum = mostNegative.Min();
}
else if (leastPositive.Any())
{
minimum = leastPositive.Min();
}
// Compute maximum
double maximum = 0;
if (mostPositive.Any())
{
maximum = mostPositive.Max();
}
else if (leastNegative.Any())
{
maximum = leastNegative.Max();
}
if (IsStacked100)
{
minimum = Math.Min(minimum, 0);
maximum = Math.Max(maximum, 0);
}
return(new Range <IComparable>(minimum, maximum));
}
else if (rangeConsumer == ActualIndependentAxis)
{
// Using a non-ICategoryAxis for the independent axis
// Need to specifically adjust for slot size of bars/columns so they don't overlap
// Note: Calculation for slotSize is not perfect, but it's quick, close, and errs on the safe side
Range <IComparable> range = base.IRangeProviderGetRange(rangeConsumer);
int count = Math.Max(IndependentValueGroups.Count(), 1);
if (ActualIndependentAxis.CanPlot(0.0))
{
double minimum = ValueHelper.ToDouble(range.Minimum);
double maximum = ValueHelper.ToDouble(range.Maximum);
double slotSize = (maximum - minimum) / count;
return(new Range <IComparable>(minimum - slotSize, maximum + slotSize));
}
else
{
DateTime minimum = ValueHelper.ToDateTime(range.Minimum);
DateTime maximum = ValueHelper.ToDateTime(range.Maximum);
TimeSpan slotSize = TimeSpan.FromTicks((maximum - minimum).Ticks / count);
return(new Range <IComparable>(minimum - slotSize, maximum + slotSize));
}
}
else
{
return(base.IRangeProviderGetRange(rangeConsumer));
}
}
