*The chart aims to show the cumulative cases in all countries with outbreaks, and to reveal the global situation of the epidemic. Countries are evenly distributed on the circle. The radial bar and the number above it indicate the confirmed cases. A red triangle is placed at the top of the circle, and information of the country it points to are displayed in the upper right text box. By turning the circle, you can view the situation in different countries. In addition, you can switch between views and add filters, to adjust the number of countries visible in the field of view.