def create_unit_hint(cls, from_unit, to_unit):
converted_value = convert(from_unit, 1, to_unit).magnitude
if converted_value < 1:
converted_value = convert(to_unit, 1, from_unit).magnitude
return ScaleHint(top_unit=from_unit, top_min=0, top_max=converted_value, bottom_unit=to_unit, bottom_min=0, bottom_max=1)
else:
return ScaleHint(top_unit=from_unit, top_min=0, top_max=1, bottom_unit=to_unit, bottom_min=0, bottom_max=converted_value)
def create_unit_hint(cls, from_unit, to_unit):
converted_value = convert(from_unit, 1, to_unit)
if converted_value.magnitude > 0.001:
value = format_quantity(converted_value)
return TextHint(text='{} is {}'.format(format_value(from_unit, 1), value))
else:
converted_value = convert(to_unit, 1, from_unit)
value = format_quantity(converted_value)
return TextHint(text='{} is {}'.format(format_value(to_unit, 1), value))
def explanation(self):
correct_question = [x for x in self.question.answers if x.correct and x.unit != self.unit]
if len(correct_question) == 1:
converted_value = convert.convert(self.unit, self.value, correct_question[0].unit)
if converted_value.magnitude > 0.001:
return convert.format_quantity(converted_value)
else:
# the value is below the required precision so we cannot use it
return None
else:
return None
def explanation(self):
min_unit = None
for question in self.question.answers:
normalized = convert.to_normalized(question.unit, 1)
if min_unit is None or convert.to_normalized(min_unit, 1) > normalized:
min_unit = question.unit
if min_unit and min_unit != self.unit:
converted_value = convert.convert(self.unit, self.value, min_unit)
if converted_value.magnitude > 0.001:
return convert.format_quantity(converted_value)
else:
# the value is below the required precision so we cannot use it
return None
else:
return None
def to_value(self):
return convert.convert(self.from_unit, self.from_value, self.to_unit).magnitude
