Gets the chart's last data item with an area that encloses the specified coordinates

This method is typically used to get information about a data entity in the chart when the user clicks on the chart. Depending on the chart type, it's possible that the provided point will be inside more than one data entity, such as in an AreaChart where the areas overlap one another. This method will return the last entity that matches, but the getChartDataItemsFromPoint() method will return information for all matching entities.