@pre A control module has been added to this noise module via a
call to SetSourceMod() or SetControlMod().
@throw new ExceptionNoMod See the preconditions for more
information.
The control module determines the output value to select. If the
output value from the control module is within a range of values
known as the <i>selection range</i>, the GetValue() method outputs
the value from the source module with an index value of 1.
Otherwise, this method outputs the value from the source module
with an index value of 0.
Returns the control module.
@returns A reference to the control module.
@pre A control module has been added to this noise module via a call to SetSourceMod() or SetControlMod().
@throw new ExceptionNoMod See the preconditions for more information.
The control module determines the output value to select. If the output value from the control module is within a range of values known as the <i>selection range</i>, the GetValue() method outputs the value from the source module with an index value of 1. Otherwise, this method outputs the value from the source module with an index value of 0.