The D3 chart currently displayed on metacat UI where the data is shown in a zoomable time range.
Features :
• Mini 'brush' chart shows the context of the data in focus in the main chart.
• Y-axis resizes automatically to match the maximum y-value of the data in focus.
• X-axis zooming and panning is limited to the range of available data.
• Text at top changes to indicate the range of data in focus.
• When no data is available, displays text instead.
• Buttons zoom focus to an interval equal to one year (if sufficient data), one month, or the range of the data.