In this video, we’re going to continue covering the Ui Design view and look at the Rotary object. The Rotary object is a control object that supports continuous parameters that could have a wide range of states. The Rotary object can be found in the Common Controls section of the Control Library. 
Drag a Rotary object from the Control Library directly into the workspace to see the default Rotary object. The Rotary can be used for any variable parameter. In this example, I’m going to use the gain control from a gain object. Drag and drop the parameter directly from the Parameters Tree on to the Rotary object. In the Properties window, the object has the usual name, workspace location, and sizing options. The object can also be interacted with directly in the workspace to move or resize. 
The “Show Scale” option will display the default scale for the gain parameter around the rotary. The properties of the scale can also be changed in the Properties section. Font, size, color and opacity for the scale can all be set here under the Scale properties. The “Thumb” is the marker on the rotary that indicates the current state or position. Color, opacity, and size can all be adjusted to make it more or less visible. “Track” is the area around the rotary that the thumb moves on. The background and the active area can have color and opacity adjusted here. The size of the track can also be adjusted, but be careful as adjusting the size too far can make it difficult to interact with. 
Next in the properties is the “Subrange”. This can be used to limit the range of the user’s control. If we set this minimum to -80 and the max to 0db, then the control will be limited to this range. Finally is the Parameter Bindings section, where it will display the currently linked parameter to this rotary control. Let’s launch this panel to see the Rotary in action. Notice that the control direction for this rotary is up and down movement, and not side to side. You should keep this in mind when placing a rotary too close to the upper and lower edges of the control panel. It takes about one diameter of the rotary to go from end to end, and the object’s interactive space is anywhere within the track.