/// <summary>
/// Returns the parameters to attach to the BaseHRef for each bucket.
/// </summary>
/// <param name="b"></param>
/// <returns></returns>
public virtual IDictionary <string, string> ParametersForBucket(Bucket b)
{
return(new Dictionary <string, string>());
}
/// <summary>
/// Generates the buckets for the range of Histogrammable. WILL THROW AN EXCEPTION IF THE ORDINAL IS NOT AN INTEGER!
/// </summary>
/// <param name="items"></param>
/// <returns></returns>
protected override IDictionary <IComparable, Bucket> BucketsForData(IEnumerable <IHistogramable> items, IEnumerable <HistogramableValue> columns)
{
Dictionary <IComparable, Bucket> dict = new Dictionary <IComparable, Bucket>();
if (items == null)
{
throw new ArgumentNullException(nameof(items));
}
if (!items.Any())
{
return(dict);
}
if (BucketWidth == 0)
{
throw new InvalidOperationException("Buckets cannot have 0 width!");
}
int min = Int32.MaxValue, max = Int32.MinValue;
// Find the range.
foreach (IHistogramable h in items)
{
int i = (int)h.BucketSelector(BucketSelectorName);
if (i < min)
{
min = i;
}
if (i > max)
{
max = i;
}
}
if (min > 0 && BucketForZero)
{
min = 0;
}
// Align to bucket width
min = (int)KeyForValue(min);
// Now create the buckets
do
{
if (min == 0 && BucketForZero)
{
dict[KeyForValue(min)] = new Bucket((int)KeyForValue(min), min.ToString(CultureInfo.CurrentCulture), columns); // zero bucket
++min;
dict[KeyForValue(min)] = new Bucket((int)KeyForValue(min), String.Format(CultureInfo.CurrentCulture, "{0}-{1}", min, BucketWidth - 1), columns); // 1-(Bucketwidth-1) bucket
min = BucketWidth + 1; // go to the "101" bucket.
}
else
{
dict[KeyForValue(min)] = new Bucket((int)KeyForValue(min), String.Format(CultureInfo.CurrentCulture, "{0}-{1}", min, min + BucketWidth - 1), columns);
min += BucketWidth;
}
} while (min <= max);
return(dict);
}
