def high_threshold():
"""Generate high hazard zone threshold parameter
:return: list of FloatParameter
:rtype: list[FloatParameter]
"""
field = FloatParameter()
field.is_required = True
field.name = 'High Hazard Zone Threshold'
field.precision = 2
field.value = 8
field.minimum_allowed_value = 0
field.maximum_allowed_value = 100
unit_metres = parameter_unit_metres()
field.unit = unit_metres
field.allowed_units = [unit_metres]
field.help_text = tr('High Hazard Zone threshold.')
field.description = tr(
'The threshold of hazard categorized as High Hazard Zone in '
'meter. A zone is categorized as High Hazard Zone if the depth of '
'tsunami inundation is more than Medium Hazard Zone Threshold and '
'less than High Hazard Zone Threshold.'
'A zone that has more than High Hazard Zone Threshold is categorized '
'as Very High Hazard Zone.')
return field
def max_threshold():
"""Generator for the default threshold parameter.
:return: List of FloatParameter
:rtype: list[FloatParameter]
"""
field = FloatParameter()
field.name = 'Maximum Thresholds [m]'
field.is_required = True
field.precision = 2
field.value = sys.float_info.max # default value
unit_metres = parameter_unit_metres()
field.unit = unit_metres
field.allowed_units = [unit_metres]
field.help_text = tr('Maximum value of hazard considered as inundated.')
field.description = tr('The depth of flood in meter as threshold.')
return field
def threshold():
"""Generator for the default threshold parameter.
:return: List of FloatParameter
:rtype: list[FloatParameter]
"""
field = FloatParameter()
field.name = tr('Thresholds [m]')
field.is_required = True
field.precision = 2
field.value = 1.0 # default value
unit_metres = parameter_unit_metres()
field.unit = unit_metres
field.allowed_units = [unit_metres]
field.help_text = tr(
'Threshold value to categorize inundated area.')
field.description = tr(
'Hazard value above the threshold in meter will be considered '
'inundated.')
return field
def low_threshold():
"""Generate low hazard zone threshold parameter
:return: list of FloatParameter
:rtype: list[FloatParameter]
"""
field = FloatParameter()
field.is_required = True
field.name = 'Low Hazard Zone Threshold'
field.precision = 2
field.value = 1
field.minimum_allowed_value = 0
field.maximum_allowed_value = 100
unit_metres = parameter_unit_metres()
field.unit = unit_metres
field.allowed_units = [unit_metres]
field.help_text = tr('Low Hazard Zone threshold.')
field.description = tr(
'The threshold of hazard categorized as Low Hazard Zone in meter. A '
'zone is categorized as Low Hazard Zone if the depth of tsunami '
'inundation is less than Low Hazard Zone Threshold.')
return field
def medium_threshold():
"""Generate moderate hazard zone threshold parameter
:return: list of FloatParameter
:rtype: list[FloatParameter]
"""
field = FloatParameter()
field.is_required = True
field.name = 'Moderate Hazard Zone Threshold'
field.precision = 2
field.value = 3
field.minimum_allowed_value = 0
field.maximum_allowed_value = 100
unit_metres = parameter_unit_metres()
field.unit = unit_metres
field.allowed_units = [unit_metres]
field.help_text = tr('Moderate Hazard Zone threshold.')
field.description = tr(
'The threshold of hazard categorized as Moderate Hazard Zone in '
'meter. A zone is categorized as Medium Hazard Zone if the depth of '
'tsunami inundation is more than Low Hazard Zone Threshold and less '
'than Medium Hazard Zone Threshold.')
return field