Python ParameterContext.fill_value方法代码示例

# 需要导入模块: from ion.services.dm.utility.granule_utils import ParameterContext [as 别名]
# 或者: from ion.services.dm.utility.granule_utils.ParameterContext import fill_value [as 别名]
    def _create_parameter(self):

        pdict = ParameterDictionary()

        pdict = self._add_location_time_ctxt(pdict)

        pres_ctxt = ParameterContext('pressure', param_type=QuantityType(value_encoding=numpy.float32))
        pres_ctxt.uom = 'Pascal'
        pres_ctxt.fill_value = 0x0
        pdict.add_context(pres_ctxt)

        temp_ctxt = ParameterContext('temp', param_type=QuantityType(value_encoding=numpy.float32))
        temp_ctxt.uom = 'degree_Celsius'
        temp_ctxt.fill_value = 0e0
        pdict.add_context(temp_ctxt)

        cond_ctxt = ParameterContext('conductivity', param_type=QuantityType(value_encoding=numpy.float32))
        cond_ctxt.uom = 'unknown'
        cond_ctxt.fill_value = 0e0
        pdict.add_context(cond_ctxt)

        raw_fixed_ctxt = ParameterContext('raw_fixed', param_type=QuantityType(value_encoding=numpy.float32))
        raw_fixed_ctxt.uom = 'unknown'
        raw_fixed_ctxt.fill_value = 0e0
        pdict.add_context(raw_fixed_ctxt)

        raw_blob_ctxt = ParameterContext('raw_blob', param_type=QuantityType(value_encoding=numpy.float32))
        raw_blob_ctxt.uom = 'unknown'
        raw_blob_ctxt.fill_value = 0e0
        pdict.add_context(raw_blob_ctxt)

        return pdict

# 需要导入模块: from ion.services.dm.utility.granule_utils import ParameterContext [as 别名]
# 或者: from ion.services.dm.utility.granule_utils.ParameterContext import fill_value [as 别名]
    def _add_location_time_ctxt(self, pdict):

        t_ctxt = ParameterContext('time', param_type=QuantityType(value_encoding=numpy.int64))
        t_ctxt.axis = AxisTypeEnum.TIME
        t_ctxt.uom = 'seconds since 1970-01-01'
        t_ctxt.fill_value = 0x0
        pdict.add_context(t_ctxt)

        lat_ctxt = ParameterContext('lat', param_type=QuantityType(value_encoding=numpy.float32))
        lat_ctxt.axis = AxisTypeEnum.LAT
        lat_ctxt.uom = 'degree_north'
        lat_ctxt.fill_value = 0e0
        pdict.add_context(lat_ctxt)

        lon_ctxt = ParameterContext('lon', param_type=QuantityType(value_encoding=numpy.float32))
        lon_ctxt.axis = AxisTypeEnum.LON
        lon_ctxt.uom = 'degree_east'
        lon_ctxt.fill_value = 0e0
        pdict.add_context(lon_ctxt)

        return pdict

# 需要导入模块: from ion.services.dm.utility.granule_utils import ParameterContext [as 别名]
# 或者: from ion.services.dm.utility.granule_utils.ParameterContext import fill_value [as 别名]
    def _create_param_contexts(self):
        context_ids = []
        t_ctxt = ParameterContext('ingestion_timestamp', param_type=QuantityType(value_encoding=numpy.dtype('float64')))
        t_ctxt.uom = 'seconds since 1900-01-01'
        t_ctxt.fill_value = -9999
        t_ctxt_id = self.dataset_management_client.create_parameter_context(name='ingestion_timestamp', parameter_context=t_ctxt.dump())
        context_ids.append(t_ctxt_id)

        raw_ctxt = ParameterContext('raw', param_type=ArrayType())
        raw_ctxt.uom = ''
        context_ids.append(self.dataset_management_client.create_parameter_context(name='raw', parameter_context=raw_ctxt.dump()))

        return context_ids, t_ctxt_id

# 需要导入模块: from ion.services.dm.utility.granule_utils import ParameterContext [as 别名]
# 或者: from ion.services.dm.utility.granule_utils.ParameterContext import fill_value [as 别名]
    def get_coverage_parameter(cls, parameter_context):
        """
        Creates a Coverage Model based Parameter Context given the 
        ParameterContext IonObject.

        Note: If the parameter is a parameter function and depends on dynamically
        created calibrations, this will fail.
        """
        # Only CF and netCDF compliant variable names
        parameter_context.name = re.sub(r'[^a-zA-Z0-9_]', '_', parameter_context.name)
        from ion.services.dm.utility.types import TypesManager
        # The TypesManager does all the parsing and converting to the coverage model instances
        tm = TypesManager(None, {}, {})
        # First thing to do is create the parameter type
        param_type = tm.get_parameter_type(
                    parameter_context.parameter_type,
                    parameter_context.value_encoding,
                    parameter_context.code_report,
                    parameter_context.parameter_function_id,
                    parameter_context.parameter_function_map)
        # Ugh, I hate it but I did copy this section from
        # ion/processes/bootstrap/ion_loader.py
        context = ParameterContext(name=parameter_context.name, param_type=param_type)
        # Now copy over all the attrs
        context.uom = parameter_context.units
        try:
            if isinstance(context.uom, basestring):
                tm.get_unit(context.uom)
        except UdunitsError:
            log.warning('Parameter %s has invalid units: %s', parameter_context.name, context.uom)
        # Fill values can be a bit tricky...
        context.fill_value = tm.get_fill_value(parameter_context.fill_value, 
                                               parameter_context.value_encoding, 
                                               param_type)
        context.reference_urls = parameter_context.reference_urls
        context.internal_name  = parameter_context.name
        context.display_name   = parameter_context.display_name
        context.standard_name  = parameter_context.standard_name
        context.ooi_short_name = parameter_context.ooi_short_name
        context.description    = parameter_context.description
        context.precision      = parameter_context.precision
        context.visible        = parameter_context.visible
        return context