def _setup_header(self):
factory = DfsFactory()
builder = DfsBuilder.Create(self._title, "DFS", 0)
builder.SetDataType(1)
builder.SetGeographicalProjection(factory.CreateProjectionUndefined())
system_start_time = to_dotnet_datetime(self._start_time)
if self._is_equidistant:
temporal_axis = factory.CreateTemporalEqCalendarAxis(
self._timeseries_unit, system_start_time, 0, self._dt
)
else:
temporal_axis = factory.CreateTemporalNonEqCalendarAxis(
self._timeseries_unit, system_start_time
)
builder.SetTemporalAxis(temporal_axis)
builder.SetItemStatisticsType(StatType.RegularStat)
dtype_dfs = self._to_dfs_datatype(self._dtype)
for i in range(self._n_items):
item = self._items[i]
newitem = builder.CreateDynamicItemBuilder()
quantity = eumQuantity.Create(item.type, item.unit)
newitem.Set(
item.name, quantity, dtype_dfs,
)
if self._data_value_type is not None:
newitem.SetValueType(self._data_value_type[i])
else:
newitem.SetValueType(DataValueType.Instantaneous)
newitem.SetAxis(factory.CreateAxisEqD0())
builder.AddDynamicItem(newitem.GetDynamicItemInfo())
try:
builder.CreateFile(self._filename)
except IOError:
raise IOError(f"Cannot create dfs0 file: {self._filename}")
return builder.GetFile()
def create(
self,
filename,
data,
start_time=None,
timeseries_unit=TimeStep.SECOND,
dt=1.0,
datetimes=None,
items=None,
title=None,
data_value_type=None,
):
"""Create a dfs0 file.
Parameters
----------
filename: str
Full path and filename to dfs0 to be created.
data: list[np.array]
values
start_time: datetime.datetime, , optional
start date of type datetime.
timeseries_unit: Timestep, optional
Timestep unitdefault Timestep.SECOND
dt: float, optional
the time step. Therefore dt of 5.5 with timeseries_unit of minutes
means 5 mins and 30 seconds. default to 1.0
items: list[ItemInfo], optional
List of ItemInfo corresponding to a variable types (ie. Water Level).
title: str, optional
title
data_value_type: list[DataValueType], optional
DataValueType default DataValueType.INSTANTANEOUS
"""
if title is None:
title = "dfs0 file"
n_items = len(data)
n_time_steps = np.shape(data[0])[0]
if start_time is None:
start_time = datetime.now()
if items is None:
items = [ItemInfo(f"temItem {i+1}") for i in range(n_items)]
if len(items) != n_items:
raise Warning(
"names must be an array of strings with the same number of elements as data columns"
)
if datetimes is None:
equidistant = True
if not type(start_time) is datetime:
raise Warning("start_time must be of type datetime ")
dt = np.float(dt)
datetimes = np.array(
[
start_time + timedelta(seconds=(step * dt))
for step in np.arange(n_time_steps)
]
)
else:
start_time = datetimes[0]
equidistant = False
# if not isinstance(timeseries_unit, int):
# raise Warning("timeseries_unit must be an integer. See dfsutil options for help ")
system_start_time = to_dotnet_datetime(start_time)
factory = DfsFactory()
builder = DfsBuilder.Create(title, "DFS", 0)
builder.SetDataType(1)
builder.SetGeographicalProjection(factory.CreateProjectionUndefined())
if equidistant:
builder.SetTemporalAxis(
factory.CreateTemporalEqCalendarAxis(
timeseries_unit, system_start_time, 0, dt
)
)
else:
builder.SetTemporalAxis(
factory.CreateTemporalNonEqCalendarAxis(
timeseries_unit, system_start_time
)
)
builder.SetItemStatisticsType(StatType.RegularStat)
for i in range(n_items):
item = builder.CreateDynamicItemBuilder()
item.Set(
items[i].name,
eumQuantity.Create(items[i].type, items[i].unit),
DfsSimpleType.Float,
)
if data_value_type is not None:
item.SetValueType(data_value_type[i])
else:
item.SetValueType(DataValueType.Instantaneous)
item.SetAxis(factory.CreateAxisEqD0())
builder.AddDynamicItem(item.GetDynamicItemInfo())
try:
builder.CreateFile(filename)
except IOError:
print("cannot create dfso file: ", filename)
dfs = builder.GetFile()
delete_value = dfs.FileInfo.DeleteValueFloat
for i in range(n_items):
d = data[i]
d[np.isnan(d)] = delete_value
data1 = np.stack(data, axis=1)
t_seconds = [(t - datetimes[0]).total_seconds() for t in datetimes]
Dfs0Util.WriteDfs0DataDouble(dfs, t_seconds, to_dotnet_array(data1))
dfs.Close()
class ExtractorDfs0(Extractor):
"""Class which extracts data to dfs0 file format"""
def Export(self):
self.factory = DfsFactory()
self.builder = self.CreateDfsBuilder()
self.DefineDynamicDataItems()
self.WriteDataItems()
def CreateDfsBuilder(self):
resultData = self.resultData
factory = self.factory
builder = DfsBuilder.Create("ResultDataExtractor-script", "MIKE SDK",
100)
# Set up file header
builder.SetDataType(1)
builder.SetGeographicalProjection(factory.CreateProjectionUndefined())
builder.SetTemporalAxis(
factory.CreateTemporalNonEqCalendarAxis(eumUnit.eumUsec,
resultData.StartTime))
builder.SetItemStatisticsType(StatType.NoStat)
return builder
def DefineDynamicDataItems(self):
outputData = self.outputData
resultData = self.resultData
builder = self.builder
for dataEntry in outputData:
dataItem = dataEntry.dataItem
elementIndex = dataEntry.elementIndex
quantity = dataItem.Quantity
itemTypeGroup = dataItem.ItemTypeGroup
numberWithinGroup = dataItem.NumberWithinGroup
reaches = list(resultData.Reaches)
nodes = list(resultData.Nodes)
catchments = list(resultData.Catchments)
if itemTypeGroup == ItemTypeGroup.ReachItem:
reach = reaches[numberWithinGroup]
gridPointIndex = dataItem.IndexList[elementIndex]
gridPoints = list(reach.GridPoints)
chainage = gridPoints[gridPointIndex].Chainage
itemName = "reach:%s:%s:%.3f" % (quantity.Id, reach.Name,
chainage)
elif itemTypeGroup == ItemTypeGroup.NodeItem:
node = nodes[numberWithinGroup]
itemName = "node:%s:%s" % (quantity.Id, node.Id)
elif itemTypeGroup == ItemTypeGroup.CatchmentItem:
catchment = catchments[numberWithinGroup]
itemName = "catchment:%s:%s" % (quantity.Id, catchment.Id)
else:
itemName = "%s:%s:%s" % (itemTypeGroup, quantityId,
dataItem.Id)
item = builder.CreateDynamicItemBuilder()
item.Set(itemName, dataItem.Quantity.EumQuantity,
DfsSimpleType.Float)
item.SetValueType(DataValueType.Instantaneous)
item.SetAxis(self.factory.CreateAxisEqD0())
builder.AddDynamicItem(item.GetDynamicItemInfo())
def WriteDataItems(self):
outputData = self.outputData
resultData = self.resultData
builder = self.builder
# Create file
builder.CreateFile(self.outFileName)
dfsfile = builder.GetFile()
times = list(resultData.TimesList)
# Write data to file
val = Array.CreateInstance(System.Single, 1)
for timeStepIndex in range(resultData.NumberOfTimeSteps):
if (timeStepIndex % self.timeStepSkippingNumber != 0):
continue
time = times[timeStepIndex].Subtract(
resultData.StartTime).TotalSeconds
for dataEntry in outputData:
dataItem = dataEntry.dataItem
elementIndex = dataEntry.elementIndex
val[0] = dataItem.GetValue(timeStepIndex, elementIndex)
dfsfile.WriteItemTimeStepNext(time, val)
dfsfile.Close()
def dfstodfs0(dfsfile, dfs0file, func=np.nanmean):
""" Function: take average (or other statistics) over dfs and output dfs0
Usage:
dfstodfs0(dfsfile, dfs0file)
dfstodfs0(dfsfile, dfs0file, func=np.nanmean)
"""
# Read dfs
dfs_in = DfsFileFactory.DfsGenericOpen(dfsfile)
fileInfo = dfs_in.FileInfo
# Basic info from input file
n_time_steps = fileInfo.TimeAxis.NumberOfTimeSteps
if n_time_steps == 0:
raise Warning(
"Static dfs files (with no time steps) are not supported.")
# Create an empty dfs1 file object
factory = DfsFactory()
builder = DfsBuilder.Create(fileInfo.FileTitle, fileInfo.ApplicationTitle,
fileInfo.ApplicationVersion)
# Set up the header
builder.SetDataType(fileInfo.DataType)
builder.SetGeographicalProjection(factory.CreateProjectionUndefined())
builder.SetTemporalAxis(fileInfo.TimeAxis)
builder.DeleteValueByte = fileInfo.DeleteValueByte
builder.DeleteValueDouble = fileInfo.DeleteValueDouble
builder.DeleteValueFloat = fileInfo.DeleteValueFloat
builder.DeleteValueInt = fileInfo.DeleteValueInt
builder.DeleteValueUnsignedInt = fileInfo.DeleteValueUnsignedInt
# dynamic items
n_items = safe_length(dfs_in.ItemInfo)
for item in range(n_items):
ii = dfs_in.ItemInfo[item]
itemj = builder.CreateDynamicItemBuilder()
itemj.Set(ii.Name, ii.Quantity, DfsSimpleType.Float)
itemj.SetValueType(DataValueType.Instantaneous)
itemj.SetAxis(factory.CreateAxisEqD0())
# itemj.SetReferenceCoordinates(0, 0, 0)
builder.AddDynamicItem(itemj.GetDynamicItemInfo())
try:
builder.CreateFile(dfs0file)
except IOError:
print("cannot create dfs0 file: ", dfs0file)
dfs_out = builder.GetFile()
# read-write data
deleteValue = fileInfo.DeleteValueFloat
for it in range(n_time_steps):
for item in range(n_items):
itemdata = dfs_in.ReadItemTimeStep(item + 1, it)
d = to_numpy(itemdata.Data)
d[d == deleteValue] = np.nan
d0 = func(d)
d = np.zeros(1)
d[0] = d0
d[np.isnan(d)] = deleteValue
darray = to_dotnet_float_array(d)
dfs_out.WriteItemTimeStepNext(itemdata.Time, darray)
dfs_in.Close()
dfs_out.Close()
def create(self,
filename,
data,
start_time=None,
timeseries_unit=TimeStep.SECOND,
dt=1,
datetimes=None,
variable_type=None,
unit=None,
names=None,
title=None,
data_value_type=None):
"""create creates a dfs0 file.
filename:
Full path and filename to dfs0 to be created.
data:
a numpy matrix
start_time:
start date of type datetime.
timeseries_unit:
Timestep default Timestep.SECOND
dt:
the time step. Therefore dt of 5.5 with timeseries_unit of minutes
means 5 mins and 30 seconds. default to 1
variable_type:
Array integers corresponding to a variable types (ie. Water Level). Use dfsutil type_list
to figure out the integer corresponding to the variable.
unit:
Array integers corresponding to the unit corresponding to the variable types The unit (meters, seconds),
use dfsutil unit_list to figure out the corresponding unit for the variable.
names:
array of names (ie. array of strings)
title:
title (string)
data_value_type:
DataValueType default DataValueType.INSTANTANEOUS
"""
if title is None:
title = "dfs0 file"
n_items = len(data)
n_time_steps = np.shape(data[0])[0]
if start_time is None:
start_time = datetime.now()
if names is None:
names = [f"Item {i+1}" for i in range(n_items)]
if variable_type is None:
variable_type = [999] * n_items
if unit is None:
unit = [0] * n_items
if names is not None and len(names) != n_items:
raise Warning(
"names must be an array of strings with the same number of elements as data columns"
)
if len(variable_type) != n_items:
raise Warning(
"type if specified must be an array of integers (eumType) with the same number of "
"elements as data columns")
if len(unit) != n_items:
raise Warning(
"unit if specified must be an array of integers (eumType) with the same number of "
"elements as data columns")
if datetimes is None:
equidistant = True
if not type(start_time) is datetime:
raise Warning("start_time must be of type datetime ")
else:
start_time = datetimes[0]
equidistant = False
#if not isinstance(timeseries_unit, int):
# raise Warning("timeseries_unit must be an integer. See dfsutil options for help ")
system_start_time = System.DateTime(start_time.year, start_time.month,
start_time.day, start_time.hour,
start_time.minute,
start_time.second)
factory = DfsFactory()
builder = DfsBuilder.Create(title, 'DFS', 0)
builder.SetDataType(1)
builder.SetGeographicalProjection(factory.CreateProjectionUndefined())
if equidistant:
builder.SetTemporalAxis(
factory.CreateTemporalEqCalendarAxis(timeseries_unit,
system_start_time, 0, dt))
else:
builder.SetTemporalAxis(
factory.CreateTemporalNonEqCalendarAxis(
timeseries_unit, system_start_time))
builder.SetItemStatisticsType(StatType.RegularStat)
for i in range(n_items):
item = builder.CreateDynamicItemBuilder()
if type is not None:
item.Set(names[i], eumQuantity.Create(variable_type[i],
unit[i]),
DfsSimpleType.Float)
else:
item.Set(str(i),
eumQuantity.Create(eumItem.eumIItemUndefined, 0),
DfsSimpleType.Float)
if data_value_type is not None:
item.SetValueType(data_value_type[i])
else:
item.SetValueType(DataValueType.Instantaneous)
item.SetAxis(factory.CreateAxisEqD0())
builder.AddDynamicItem(item.GetDynamicItemInfo())
try:
builder.CreateFile(filename)
except IOError:
print('cannot create dfso file: ', filename)
dfs = builder.GetFile()
delete_value = dfs.FileInfo.DeleteValueFloat
for i in range(n_items):
d = data[i]
d[np.isnan(d)] = delete_value
# COPY OVER THE DATA
for it in range(n_time_steps):
for ii in range(n_items):
d = Array[System.Single](np.array(data[ii][it:it + 1]))
if equidistant:
dfs.WriteItemTimeStepNext(it, d)
else:
dt = (datetimes[it] - datetimes[0]).total_seconds()
dfs.WriteItemTimeStepNext(dt, d)
dfs.Close()
