def test_power():
"""Test Power type."""
power_type = power.Power()
for unit in power_type.units:
assert power_type.to_unit([1], unit,
unit)[0] == pytest.approx(1, rel=1e-5)
ip_vals, ip_u = power_type.to_ip([1], unit)
assert len(ip_vals) == 1
si_vals, si_u = power_type.to_si([1], unit)
assert len(si_vals) == 1
for other_unit in power_type.units:
assert len(power_type.to_unit([1], other_unit, unit)) == 1
assert power_type.to_unit([1], 'Btu/h', 'W')[0] == pytest.approx(3.41214,
rel=1e-3)
assert power_type.to_unit([1], 'kW', 'W')[0] == 0.001
assert power_type.to_unit([1], 'kBtu/h',
'W')[0] == pytest.approx(0.00341214, rel=1e-5)
assert power_type.to_unit([1], 'TR', 'W')[0] == pytest.approx(1 / 3516.85,
rel=1e-5)
assert power_type.to_unit([1], 'hp', 'W')[0] == pytest.approx(1 / 745.7,
rel=1e-5)
assert power_type.to_unit([1], 'W',
'Btu/h')[0] == pytest.approx(1 / 3.41214,
rel=1e-2)
assert power_type.to_unit([1], 'W', 'kW')[0] == 1000
assert power_type.to_unit([1], 'W',
'kBtu/h')[0] == pytest.approx(1 / 0.00341214,
rel=1e-1)
assert power_type.to_unit([1], 'W', 'TR')[0] == pytest.approx(3516.85,
rel=1e-1)
assert power_type.to_unit([1], 'W', 'hp')[0] == pytest.approx(745.7,
rel=1e-1)
class ScheduleTypeLimit(object):
"""Energy schedule type definition.
Schedule types exist for the sole purpose of validating schedule values against
upper/lower limits and assigning a data type and units to the schedule values.
Properties:
name
lower_limit
upper_limit
numeric_type
unit_type
data_type
unit
"""
_default_lb_unit_type = {
'Dimensionless': (fraction.Fraction(), 'fraction'),
'Temperature': (temperature.Temperature(), 'C'),
'DeltaTemperature': (temperaturedelta.TemperatureDelta(), 'C'),
'PrecipitationRate': [distance.Distance(), 'm'],
'Angle': [angle.Angle(), 'degrees'],
'ConvectionCoefficient': [uvalue.ConvectionCoefficient(), 'W/m2-K'],
'ActivityLevel': [power.ActivityLevel(), 'W'],
'Velocity': [speed.Speed(), 'm/s'],
'Capacity': [power.Power(), 'W'],
'Power': [power.Power(), 'W'],
'Availability': [fraction.Fraction(), 'fraction'],
'Percent': [fraction.Fraction(), '%'],
'Control': [fraction.Fraction(), 'fraction'],
'Mode': [fraction.Fraction(), 'fraction']
}
UNIT_TYPES = tuple(_default_lb_unit_type.keys())
NUMERIC_TYPES = ('Continuous', 'Discrete')
def __init__(self,
name,
lower_limit=None,
upper_limit=None,
numeric_type='Continuous',
unit_type='Dimensionless'):
"""Initialize ScheduleTypeLimit.
Args:
name: Text string for schedule type name. Must be <= 100 characters.
Can include spaces but special characters will be stripped out.
lower_limit: An optional number for the lower limit for values in the
schedule. If None, there will be no lower limit.
upper_limit: An optional number for the upper limit for values in the
schedule. If None, there will be no upper limit.
numeric_type: Either one of two strings: 'Continuous' or 'Discrete'.
The latter means that only integers are accepted as schedule values.
Default: 'Continuous'.
unit_type: Text for an EnergyPlus unit type, which will be used
to assign units to the values in the schedule. Note that this field
is not used in the actual calculations of EnergyPlus.
Default: 'Dimensionless'. Choose from the following options:
'Dimensionless', 'Temperature', 'DeltaTemperature', 'PrecipitationRate',
'Angle', 'ConvectionCoefficient', 'ActivityLevel', 'Velocity',
'Capacity', 'Power', 'Availability', 'Percent', 'Control', 'Mode'
"""
# process the name and limits
self._name = valid_ep_string(name, 'schedule type name')
self._lower_limit = float_in_range(lower_limit) if lower_limit is not \
None else None
self._upper_limit = float_in_range(upper_limit) if upper_limit is not \
None else None
if self._lower_limit is not None and self._upper_limit is not None:
assert self._lower_limit <= self._upper_limit, 'ScheduleTypeLimit ' \
'lower_limit must be less than upper_limit. {} > {}.'.format(
self._lower_limit, self._upper_limit)
# process the numeric type
self._numeric_type = numeric_type.capitalize() or 'Continuous'
assert self._numeric_type in self.NUMERIC_TYPES, '"{}" is not an acceptable ' \
'numeric type. Choose from the following:\n{}'.format(
numeric_type, self.NUMERIC_TYPES)
# process the unit type and assign the ladybug data type and unit
if unit_type is None:
self._data_type, self._unit = self._default_lb_unit_type[
'Dimensionless']
self._unit_type = 'Dimensionless'
else:
clean_input = valid_string(unit_type).lower()
for key in self.UNIT_TYPES:
if key.lower() == clean_input:
unit_type = key
break
else:
raise ValueError(
'unit_type {} is not recognized.\nChoose from the '
'following:\n{}'.format(unit_type, self.UNIT_TYPES))
self._data_type, self._unit = self._default_lb_unit_type[unit_type]
self._unit_type = unit_type
@property
def name(self):
"""Get the text string for schedule type name."""
return self._name
@property
def lower_limit(self):
"""Get the lower limit of the schedule type."""
return self._lower_limit
@property
def upper_limit(self):
"""Get the upper limit of the schedule type."""
return self._upper_limit
@property
def numeric_type(self):
"""Text noting whether schedule values are 'Continuous' or 'Discrete'."""
return self._numeric_type
@property
def unit_type(self):
"""Get the text string describing the energyplus unit type."""
return self._unit_type
@property
def data_type(self):
"""Get the Ladybug DataType object corresponding to the energyplus unit type.
This object can be used for creating Ladybug DataCollections, performing unit
conversions of schedule values, etc.
"""
return self._data_type
@property
def unit(self):
"""Get the string describing the units of the schedule values (ie. 'C', 'W')."""
return self._unit
@classmethod
def from_idf(cls, idf_string):
"""Create a ScheduleTypeLimit from an IDF string of ScheduleTypeLimits.
Args:
idf_string: A text string describing EnergyPlus ScheduleTypeLimits.
"""
ep_strs = parse_idf_string(idf_string, 'ScheduleTypeLimits,')
ep_fields = [prop if prop != '' else None for prop in ep_strs]
return cls(*ep_fields)
@classmethod
def from_dict(cls, data):
"""Create a ScheduleTypeLimit from a dictionary.
Args:
data: ScheduleTypeLimit dictionary following the format below.
.. code-block:: json
{
"type": 'ScheduleTypeLimit',
"name": 'Fractional',
"lower_limit": 0,
"upper_limit": 1,
"numeric_type": False,
"unit_type": "Dimensionless"
}
"""
assert data['type'] == 'ScheduleTypeLimit', \
'Expected ScheduleTypeLimit dictionary. Got {}.'.format(data['type'])
lower_limit = data['lower_limit'] if 'lower_limit' in data else None
upper_limit = data['upper_limit'] if 'upper_limit' in data else None
numeric_type = data[
'numeric_type'] if 'numeric_type' in data else 'Continuous'
unit_type = data[
'unit_type'] if 'unit_type' in data else 'Dimensionless'
return cls(data['name'], lower_limit, upper_limit, numeric_type,
unit_type)
def to_idf(self):
"""IDF string for the ScheduleTypeLimits of this object."""
values = [
self.name, self.lower_limit, self.upper_limit, self.numeric_type,
self.unit_type
]
if values[1] is None:
values[1] = ''
if values[2] is None:
values[2] = ''
comments = ('name', 'lower limit value', 'upper limit value',
'numeric type', 'unit type')
return generate_idf_string('ScheduleTypeLimits', values, comments)
def to_dict(self):
"""Shade construction dictionary representation."""
base = {'type': 'ScheduleTypeLimit'}
base['name'] = self.name
base['lower_limit'] = self.lower_limit
base['upper_limit'] = self.upper_limit
base['numeric_type'] = self.numeric_type
base['unit_type'] = self.unit_type
return base
@staticmethod
def extract_all_from_idf_file(idf_file):
"""Extract all ScheduleTypeLimit objects from an EnergyPlus IDF file.
Args:
idf_file: A path to an IDF file containing objects for ScheduleTypeLimits.
Returns:
schedule_type_limits: A list of all ScheduleTypeLimits objects in the
IDF file as honeybee_energy ScheduleTypeLimit objects.
"""
# check the file
assert os.path.isfile(
idf_file), 'Cannot find an idf file at {}'.format(idf_file)
with open(idf_file, 'r') as ep_file:
file_contents = ep_file.read()
# extract all of the ScheduleTypeLimit objects
type_pattern = re.compile(r"(?i)(ScheduleTypeLimits,[\s\S]*?;)")
type_idf_strings = type_pattern.findall(file_contents)
schedule_type_limits = []
for type_str in type_idf_strings:
type_str = type_str.strip()
schedule_type_limits.append(ScheduleTypeLimit.from_idf(type_str))
return schedule_type_limits
def duplicate(self):
"""Get a copy of this object."""
return self.__copy__()
def __copy__(self):
return ScheduleTypeLimit(self.name, self._lower_limit,
self._upper_limit, self._numeric_type,
self._unit_type)
def __key(self):
"""A tuple based on the object properties, useful for hashing."""
return (self.name, self._lower_limit, self._upper_limit,
self._numeric_type, self._unit_type)
def __hash__(self):
return hash(self.__key())
def __eq__(self, other):
return isinstance(other,
ScheduleTypeLimit) and self.__key() == other.__key()
def __ne__(self, other):
return not self.__eq__(other)
def ToString(self):
"""Overwrite .NET ToString."""
return self.__repr__()
def __repr__(self):
return self.to_idf()