attributes.py 文件源码

def validate_and_normalize(self, obj, value):
        rounded_value = FloatRegister.validate_and_normalize(self, obj, value)
        if rounded_value == 0 and value != 0:  # value was rounded off to zero
            if self.avoid_round_off_to_zero:
                rounded_value = FloatRegister.validate_and_normalize(
                    self, obj, np.abs(self.increment)*np.sign(value))
                obj._logger.warning("Avoided rounding value %.1e of the "
                                    "gain register %s to zero. Setting it to %.1e "
                                    "instead. ", value, self.name, rounded_value)
            else:
                obj._logger.warning("Rounding value %.1e of the "
                                    "gain register %s to zero. ", value, self.name)
        if value > self.max or value < self.min:
            obj._logger.warning("Requested gain for %s.%s is outside the "
                                "bounds allowed by the hardware. Desired "
                                "gain of %.1e is capped to %.1e. ",
                                obj.name, self.name, value, rounded_value)
        return rounded_value