Adds tooltip content as a table. The columns of the table are the "label", the value before
the mouse cursor, then value after the mouse cursor, and the difference between the two values.
The rows of the table are x-values for the first row, and the y-values for the second row.
The table has the following form.
Registers the tooltip-content provider with the ChartContext so that when d3 fires a mouse-over
event on a series. The content provider is returns the {@link addTooltipContent} function
when called. And when called the {@link addTooltipContent} function adds the actual tooltip
content to the SVG element.
Adds tooltip content as a table. The columns of the table are the "label", the value before the mouse cursor, then value after the mouse cursor, and the difference between the two values. The rows of the table are x-values for the first row, and the y-values for the second row. The table has the following form.
Registers the tooltip-content provider with the
ChartContext
so that when d3 fires a mouse-over event on a series. The content provider is returns the {@link addTooltipContent} function when called. And when called the {@link addTooltipContent} function adds the actual tooltip content to the SVG element.