Virtuoso Standard Library
Knob Control
A control knob is a rotary control used to provide input to a device when grasped by an operator and turned, so that the degree of rotation corresponds to the desired input. Such knobs are one of the most common components in control systems and are found on all sorts of devices. Such knobs vary greatly in form, but as a rule they are expected to be grasped by the fingertips. By convention a clockwise rotation ordinarily produces an "increased" input, whatever that is understood to be. Knobs may turn continuously or may have detents to produce discrete selections; they commonly have a scale with a pointer to aid achievement of the desired setting, though it is common for the gradations in the scale to have no concrete meaning. There is frequently a fixed "off" position at the origin of movement in which the knob actuates a switch shutting down whatever behavior is controlled, rather than having a separate on/off switch.
Case 1:Default Setup
1. Default NodeStyle
2. Default Property window
(3) Default Preview Window
(4) Default View in HOST
Case 2:-When “Is Knob Angle()” is checked in property window
1. Property window
2. View in HOST
Case 3: when “Is Value Visible” is unchecked in property window
1. Property Window
2. View in HOST
Case 4:-Changing values in property window for “Max Knob Value” and “Min
Knob Value”
1. Property Window
2. View in Host
Case 5:-When “Minimum Knob Rotatation” and “Maximum Knob Rotation” is changed
1. Property Window
2. View in HOST
Case 6:-Different Tick values scale
1. When Tick value scale like (0 To 100)
1. Property window
2. View in HOST
(B)When Tick value scale like(0 To -100)
1. Property window
2. View in HOST
3. When Tick value scale like(-10 To -100)
1. Property window
2. View in HOST
4. When Tick value scale like(40 To -100)
1. Property window
2. View in HOST
5. When Tick value scale like(-100 To 50)
1. Property window
2. View win HOST
6. When Tick value scale like(-100 To 0)
1. Property window
2. View in HOST
7. When Tick value scale like(-100 To -50)
1. Property window
2. View in HOST
Note: Value of this control is persist. It maintains the last state of the control.