@Override
    public String toString() {
        return "JoystickAxis[name=" + name + ", parent=" + parent.getName() + ", id=" + axisIndex
                                    + ", logicalId=" + logicalId + ", isAnalog=" + isAnalog
                                    + ", isRelative=" + isRelative + ", deadZone=" + deadZone + "]";
    }
Sets/overrides the dead zone for this axis.  This indicates that values
 within +/- deadZone should be ignored.

@param f the desired radius
jme3-core/src/main/java/com/jme3/input/DefaultJoystickAxis.java