public override TEntry EntryForXValue(float xValue, float yValue, DataSetRounding rounding)
{
int index = EntryIndex(xValue, yValue, rounding);
if (index > -1)
{
return(entries[index]);
}
return(default);
/// <summary>
/// An array of `Highlight` objects corresponding to the selected xValue and dataSetIndex.
/// </summary>
protected virtual IList <Highlight> BuildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSetRounding rounding)
{
IList <Highlight> highlights = new List <Highlight>();
//noinspection unchecked
IList <Entry> entries = set.EntriesForXValue(xVal);
if (entries.Count == 0)
{
// Try to find closest x-value and take all entries for that x-value
Entry closest = set.EntryForXValue(xVal, float.NaN, rounding);
if (closest != null)
{
//noinspection unchecked
entries = set.EntriesForXValue(closest.X);
}
}
if (entries.Count == 0)
{
return(highlights);
}
foreach (Entry e in entries)
{
var pixels = Chart.GetTransformer(
set.AxisDependency).PointValueToPixel(e.X, e.Y);
highlights.Add(new Highlight(
e.X, e.Y,
(float)pixels.X, (float)pixels.Y,
dataSetIndex, set.AxisDependency));
}
return(highlights);
}
