The Ignite UI Radial Gauge is a very intuitive way do illustrate data points along a continuum. Similar to a speedometer, the Radial Guage provides a way for you to allow your users to understand their data with a glance. The Radial Gauge has a variety of customization options and can even work as an input control.
While the Ignite UI Radial Gauge control is a great tool for visualizing data, it also makes a great user input component. When you enable needle dragging, your users can interact with the radial gauge by simply dragging the needle to any data point on the dial they wish.