Gets a MapDot which is located under the test point.
NuGet Package: DevExpress.Wpf.Map
A MapDot object that is the dot located under the test point.
Use the MapDot property to access the map dot located under the test point (if the MapHitInfo.InMapDot property returns true).
If MapHitInfo.InMapDot is false, the MapDot property returns null (Nothing in Visual Basic).