def _read_bytes(stream):
ms = IO.MemoryStream()
buf = Array.CreateInstance(System.Byte, 2048)
while True:
bytes = stream.Read(buf, 0, buf.Length)
if bytes == 0:
break
else:
ms.Write(buf, 0, bytes)
retval = ms.ToArray()
ms.Close()
return retval
def image_to_nparray(image_like):
'''returns a 3D numpy.ndarray of floats indexed like [x,y,z]'''
_shape = (image_like.XSize, image_like.YSize, image_like.ZSize)
_array = np.zeros(_shape)
_buffer = Array.CreateInstance(Int32, image_like.XSize, image_like.YSize)
for z in range(image_like.ZSize):
image_like.GetVoxels(z, _buffer)
_array[:, :, z] = to_ndarray(_buffer, dtype=c_int32).reshape(
(image_like.XSize, image_like.YSize))
return _array
def _dfsu_element_coordinates(dfsu_object):
""" Use MIKE SDK method to calc element coords from dfsu_object """
element_coordinates = np.zeros(shape=(dfsu_object.NumberOfElements, 3))
# Convert nodes to .NET System double to input to method
xtemp = Array.CreateInstance(System.Double, 0)
ytemp = Array.CreateInstance(System.Double, 0)
ztemp = Array.CreateInstance(System.Double, 0)
# Get element coords
elemts_temp = dfs.dfsu.DfsuUtil.CalculateElementCenterCoordinates(dfsu_object, xtemp, ytemp, ztemp)
# Place in array; need to get from .NET Array to numpy array
for n in range(3):
ele_coords_temp = []
for ele in elemts_temp[n+1]:
ele_coords_temp.append(ele)
element_coordinates[:, n] = ele_coords_temp
return element_coordinates
def initialize(self):
# Create empty array of four channels.
# These are only necessary for initialization
channels = Array.CreateInstance(self._api.Functionality, 4)
# Initialize each of the channels
channels[0] = self._api.Functionality.ARB
channels[1] = self._api.Functionality.ARB
channels[2] = self._api.Functionality.ARB
channels[3] = self._api.Functionality.ARB
# Initialise ArbStudio
self.call_dll(self._device.Initialize, channels, msg="initializing")
def readScalarIntegerAttribute(dset, name):
attr = H5A.open(dset, name)
dtype = H5A.getType(attr)
buffer = Array.CreateInstance(Int32, 1)
H5A.read(attr, dtype, H5Array[Int32](buffer))
fmt = 'The value of the attribute "%s" is %d'
print fmt % (name, buffer[0])
H5T.close(dtype)
H5A.close(attr)
return None
def make_dose_for_grid(dose, image=None):
'''returns a 3D numpy.ndarray of doubles matching dose (default) or image grid indexed like [x,y,z]'''
if image is not None:
row_buffer = Array.CreateInstance(Double, image.ZSize)
dose_array = fill_in_profiles(image, dose.GetDoseProfile, row_buffer, c_double)
else:
# default
dose_array = dose_to_nparray(dose)
dose_array[np.where(np.isnan(dose_array))] = 0.0
return dose_array
def read(self, streams):
count = random.randrange(0, self._maxsize)
buffer = Array.CreateInstance(System.Byte, self._maxsize)
maxoffset = self._maxsize - count
offset = random.randrange(0, maxoffset)
toread = min(count, self._currentlength - self._currentoffset)
toread = max(0, toread)
self._currentoffset += toread
self._trace('stream.Read(data, %d, %d)' % (offset, count))
for s in streams:
r = s.Read(buffer, offset, count)
self._check(r == toread, 'got %d bytes from read. expected %d' % (r, toread))
def readAndDereference(h5file):
dsetr = H5D.open(h5file, 'R')
dtyper = H5T.copy(H5T_STD_REF_OBJ)
dspacer = H5D.getSpace(dsetr)
npoints = H5S.getSimpleExtentNPoints(dspacer)
nBytes = ObjectReference.SizeInBytes
datar = Array.CreateInstance(Byte, npoints * nBytes)
H5D.read(dsetr, dtyper, H5Array[Byte](datar))
oref = Array.CreateInstance(ObjectReference, npoints)
a = Array.CreateInstance(Byte, nBytes)
for i in range(oref.Length):
Array.Copy(datar, i * nBytes, a, 0, nBytes)
oref[i] = ObjectReference(a)
otype = H5R.getObjectType(h5file, oref[0])
if (otype == H5O.ObjectType.GROUP):
print 'First dereferenced object is a group.'
otype = H5R.getObjectType(h5file, oref[1])
if (otype == H5O.ObjectType.DATASET):
print 'Second dereferenced object is a dataset.'
dset = H5R.dereference(dsetr, H5R.ReferenceType.OBJECT, oref[1])
dtype = H5D.getType(dset)
dtype1 = H5T.copy(H5T_NATIVE_FLOAT)
if (H5T.equal(dtype, dtype1)):
print 'Datatype of the dataset is H5T_NATIVE_FLOAT.'
H5T.close(dtype)
H5T.close(dtype1)
H5D.close(dset)
H5S.close(dspacer)
H5T.close(dtyper)
H5D.close(dsetr)
return None
def testColumnStream():
print 'Verifying ColumnStream against MemoryStream'
timer = Stopwatch.StartNew()
instance = Instance('ColumnStreamTest')
instance.Parameters.MaxVerPages = 1024
instance.Parameters.CircularLog = True
instance.Init()
bookmark = Array.CreateInstance(System.Byte, 255)
try:
session = Session(instance)
dbid = Api.JetCreateDatabase(session, 'ColumnStream.db', '',
CreateDatabaseGrbit.OverwriteExisting)
Api.JetBeginTransaction(session)
tableid = Api.JetCreateTable(session, dbid, 'table', 0, 100)
columndef = JET_COLUMNDEF(coltyp=JET_coltyp.LongBinary)
columnid = Api.JetAddColumn(session, tableid, 'LvColumn', columndef,
None, 0)
Api.JetCloseTable(session, tableid)
Api.JetCommitTransaction(session, CommitTransactionGrbit.LazyFlush)
tableid = Api.JetOpenTable(session, dbid, 'table', None, 0,
OpenTableGrbit.None)
for i in xrange(64):
runtimer = Stopwatch.StartNew()
Api.JetBeginTransaction(session)
Api.JetPrepareUpdate(session, tableid, JET_prep.Insert)
bookmarksize = Api.JetUpdate(session, tableid, bookmark, 255)
Api.JetCommitTransaction(session, CommitTransactionGrbit.LazyFlush)
Api.JetGotoBookmark(session, tableid, bookmark, bookmarksize)
Api.JetBeginTransaction(session)
Api.JetPrepareUpdate(session, tableid, JET_prep.Insert)
streams = [
MemoryStream(),
ColumnStream(session, tableid, columnid)
]
randomOperations(64, streams)
Api.JetUpdate(session, tableid)
Api.JetCommitTransaction(session, CommitTransactionGrbit.LazyFlush)
runtimer.Stop()
print '\t%s' % runtimer.Elapsed
finally:
instance.Dispose()
timer.Stop()
print '%s' % timer.Elapsed
def array(listArg):
dotNetArray = Array.CreateInstance(double, len(listArg))
for idx in range(0, len(listArg)):
dotNetArray[idx] = listArg[idx]
numSharpArray = ns.NDArray[double]()
numSharpArray.Data = dotNetArray
numSharpArray.Shape = ns.Shape(dotNetArray.Length)
return numSharpArray
def make_segment_mask_for_structure(dose_or_image, structure):
'''returns a 3D numpy.ndarray of bools matching dose or image grid indexed like [x,y,z]'''
if (structure.HasSegment):
mask_array = np.zeros(
(dose_or_image.ZSize, dose_or_image.YSize, dose_or_image.XSize))
pre_buffer = System.Collections.BitArray(dose_or_image.ZSize)
row_buffer = Array.CreateInstance(bool, dose_or_image.ZSize)
return fill_in_profiles(dose_or_image, structure.GetSegmentProfile,
row_buffer, c_bool, pre_buffer)
else:
raise Exception("structure has no segment data")
def ExtractProfile(): #extract profile from image: not used in 3D Tracking
[x, y] = ginput(2)
x_draw = (x[0], y[0])
y_draw = (x[1], y[1])
plt.plot(x_draw, y_draw)
obj.SetPhaseProfileState(True)
obj.ExtractPhaseProfile(x[0], x[1], y[0], y[1])
length = obj.GetPhaseProfileLength()
bufP = Array.CreateInstance(System.Double, length)
obj.GetPhaseProfile(bufP)
floatbufP = np.zeros(length, dtype=float)
for x in range(0, length - 1):
floatbufP[x] = float(bufP[x])
return floatbufP
async def read_gatt_descriptor(self,
handle: int,
use_cached=False,
**kwargs) -> bytearray:
"""Perform read operation on the specified GATT descriptor.
Args:
handle (int): The handle of the descriptor to read from.
use_cached (bool): `False` forces Windows to read the value from the
device again and not use its own cached value. Defaults to `False`.
Returns:
(bytearray) The read data.
"""
descriptor = self.services.get_descriptor(handle)
if not descriptor:
raise BleakError(
"Descriptor with handle {0} was not found!".format(handle))
read_result = await wrap_IAsyncOperation(
IAsyncOperation[GattReadResult](descriptor.obj.ReadValueAsync(
BluetoothCacheMode.
Cached if use_cached else BluetoothCacheMode.Uncached)),
return_type=GattReadResult,
loop=self.loop,
)
if read_result.Status == GattCommunicationStatus.Success:
reader = DataReader.FromBuffer(IBuffer(read_result.Value))
output = Array.CreateInstance(Byte, reader.UnconsumedBufferLength)
reader.ReadBytes(output)
value = bytearray(output)
logger.debug("Read Descriptor {0} : {1}".format(handle, value))
else:
if read_result.Status == GattCommunicationStatus.ProtocolError:
raise BleakDotNetTaskError(
"Could not get GATT characteristics for {0}: {1} (Error: 0x{2:02X})"
.format(
descriptor.uuid,
_communication_statues.get(read_result.Status, ""),
read_result.ProtocolError,
))
else:
raise BleakError(
"Could not read Descriptor value for {0}: {1}".format(
descriptor.uuid,
_communication_statues.get(read_result.Status, ""),
))
return value
def Decompress(compressed):
with MemoryStream(compressed.Length) as inputStream:
inputStream.Write(compressed, 0, compressed.Length)
inputStream.Seek(0, SeekOrigin.Begin)
with MemoryStream() as outputStream:
with DeflateStream(inputStream, CompressionMode.Decompress) as deflateStream:
buffer = Array.CreateInstance(Byte, 4096)
bytesRead = deflateStream.Read(buffer, 0, buffer.Length)
outputStream.Write(buffer, 0, bytesRead)
while bytesRead != 0:
bytesRead = deflateStream.Read(buffer, 0, buffer.Length)
outputStream.Write(buffer, 0, bytesRead)
return outputStream.ToArray()
def Conv2Array(filename, rowoffset, delim):
legnames = []
data = []
for row in csv.reader(open(filename), delimiter=delim):
data.append(row)
headers = data[0] # contains the column names
# determine the number of measured parameters
numvar = len(headers)
# determine the number of rows of the CSV table
numrows = len(data)
entries = numrows - 1
print 'Number of Vars :', numvar
print 'Number of Entries :', entries
# initialize 2D array to store all parameter values
values = Array.CreateInstance(float, numrows - rowoffset, numvar)
# define empty list with ... entries
typelist = [None] * numvar
# write values from table into array
for i in range(0, numrows - rowoffset, 1):
# write the data into array
tmp = data[i + rowoffset]
for k in range(0, len(tmp), 1):
# convert "," to "."
tmp[k] = str.replace(tmp[k], ',', '.')
try:
values[i, k] = float(tmp[k])
if (i == 0):
typelist[
k] = 'float' # type of data for current column = float
except:
values[i, k] = float('nan')
if (i == 0):
typelist[
k] = 'str' # type of data for current column = str
print typelist
# create legend names
for i in range(0, numvar, 1):
legname_tmp = headers[i]
legnames.append(legname_tmp)
return values, legnames, numvar, entries, typelist
def XlsWriter(self):
ex = Excel.ApplicationClass()
ex.Visible = True
ex.DisplayAlerts = False
workbook = ex.Workbooks.Add()
workbook.SaveAs(self.dirpath + "\\reportFamilies.xlsx")
ws = workbook.Worksheets[1]
nbr_row = 1
for sub_lst in self.full_lstP:
nbr_col = len(sub_lst)
xlrange = ws.Range[ws.Cells(nbr_row, 1),
ws.Cells(nbr_row, len(sub_lst))]
a = Array.CreateInstance(object, 1, len(sub_lst))
b = Array.CreateInstance(object, 1, len(sub_lst))
for index, i in enumerate(sub_lst):
# if i is string
if isinstance(i, str):
a[0, index] = i
#else i is a ParameterProp objet
else:
a[0, index] = i._pname
if i._pisinstance == False:
b[0, index] = 6
elif i._pisinstance == True:
b[0, index] = 8
else:
b[0, index] = None
#copy Array in range
xlrange.Value2 = a
for cell, color_index in zip(xlrange, b):
cell.Interior.ColorIndex = color_index
nbr_row += 1
used_range = ws.UsedRange
for column in used_range.Columns:
column.AutoFit()
workbook.Save()
def createDatasetWithCompoundType(h5file):
# component name -> (offset, size, type)
ht = { 'a_name': (0, 4, H5T_NATIVE_INT),
'b_name': (4, 4, H5T_NATIVE_FLOAT),
'c_name': (8, 8, H5T_NATIVE_DOUBLE) }
sizeof = 0
for k in ht.keys():
sizeof += ht[k][1]
dtype = H5T.create(H5T.CreateClass.COMPOUND, sizeof)
for k in ht.keys():
H5T.insert(dtype, k, ht[k][0], ht[k][2])
npoints = 10
shape = Array[Int64]((npoints,))
dspace = H5S.create_simple(shape.Length, shape)
dset = H5D.create(h5file, 'ArrayOfStructures', dtype, dspace)
# create an array of Byte
# use BitConverter to get Byte representations
shape = Array[Int64]((npoints*sizeof,))
byteArray = Array.CreateInstance(Byte, shape)
for i in range(npoints):
offset = i*sizeof
a = Int32(i)
Array.Copy(BitConverter.GetBytes(a), 0, byteArray,
offset+ht['a_name'][0], ht['a_name'][1])
b = Single(i*i)
Array.Copy(BitConverter.GetBytes(b), 0, byteArray,
offset+ht['b_name'][0], ht['b_name'][1])
c = Double(1.0/(i+1.0))
Array.Copy(BitConverter.GetBytes(c), 0, byteArray,
offset+ht['c_name'][0], ht['c_name'][1])
H5D.write(dset, dtype, H5Array[Byte](byteArray))
H5S.close(dspace)
H5T.close(dtype)
return dset
def receive(self):
"""listen to a message until received one"""
if self.socket.State != WebSocketState.Open:
raise RuntimeError('Connection is not open.')
chunks = []
while True:
# print('receive chunk')
buffer = Array.CreateInstance(Byte, RECEIVE_CHUNK_SIZE)
task = self.socket.ReceiveAsync(
ArraySegment[Byte](buffer), self.token)
task.Wait()
chunk = Encoding.UTF8.GetString(buffer)
chunks.append(chunk.rstrip('\x00'))
if task.Result.EndOfMessage:
return ''.join(chunks)
def getIntensity32fImage(contrast, width, height): #get float intensity image
if contrast == 'lambda1':
obj.SelectDisplayWL(2048)
elif contrast == 'lambda2':
obj.SelectDisplayWL(4096)
else:
obj.SelectDisplayWL(2048)
size = width * height
bufP = Array.CreateInstance(System.Single, size)
obj.GetIntensity32fImage(bufP)
floatbufP = np.zeros(size, dtype=float)
for x in range(0, size - 1):
floatbufP[x] = float(bufP[x])
out = np.reshape(floatbufP, (height, width))
return out
def parse_eventargs(event_args):
bdaddr = _format_bdaddr(event_args.BluetoothAddress)
uuids = []
for u in event_args.Advertisement.ServiceUuids:
uuids.append(u.ToString())
data = {}
for m in event_args.Advertisement.ManufacturerData:
md = IBuffer(m.Data)
b = Array.CreateInstance(Byte, md.Length)
reader = DataReader.FromBuffer(md)
reader.ReadBytes(b)
data[m.CompanyId] = bytes(b)
local_name = event_args.Advertisement.LocalName
return BLEDevice(bdaddr,
local_name,
event_args,
uuids=uuids,
manufacturer_data=data)
def start_listening(self):
"""Starts listening asynchronously while the socket is open.
The inter-thread synchronization between this and the async
reception threads is sync'd with a manual reset event."""
try:
LOGGER.debug('About to start listening, socket state: %s',
self.socket.State)
while self.socket and self.socket.State == WebSocketState.Open:
mre = ManualResetEventSlim(False)
content = []
buffer = Array.CreateInstance(Byte, RECEIVE_CHUNK_SIZE)
self.receive_chunk_async(
None, dict(buffer=buffer, content=content, mre=mre))
LOGGER.debug('Waiting for messages...')
try:
mre.Wait(self.factory.manager.cancellation_token)
except SystemError:
LOGGER.debug(
'Cancellation detected on listening thread, exiting...'
)
break
try:
message_payload = ''.join(content)
LOGGER.debug('Message reception completed|<pre>%s</pre>',
message_payload)
self.on_message(message_payload)
except Exception:
LOGGER.exception(
'Exception on start_listening while trying to handle message received.'
+
'It could indicate a bug in user code on message handlers. Message skipped.'
)
except Exception:
LOGGER.exception(
'Exception on start_listening, processing will be aborted')
raise
finally:
LOGGER.debug('Leaving the listening thread')
def addSimpleFloatAttribute(dset):
shape = Array[Int64]((2, 3))
matrix = Array.CreateInstance(Single, shape)
for row in range(matrix.GetLength(0)):
for col in range(matrix.GetLength(1)):
matrix[row, col] = -1
dspace = H5S.create_simple(shape.Length, shape)
dtype = H5T.copy(H5T_NATIVE_FLOAT)
attr = H5A.create(dset, 'Float attribute', dtype, dspace)
H5A.write(attr, dtype, H5Array[Single](matrix))
H5A.close(attr)
H5T.close(dtype)
H5S.close(dspace)
return None
def load_waveforms(self):
if not self.waveforms:
# Must have at least one waveform, add one with 0V
self.add_waveform(np.array([0, 0, 0, 0]))
# Initialize array of waves
waveforms = Array.CreateInstance(self._api.WaveformStruct,
len(self.waveforms))
# We have to create separate wave instances and load them into
# the waves array one by one
for k, waveform_array in enumerate(self.waveforms):
wave = self._api.WaveformStruct()
wave.Sample = waveform_array
waveforms[k] = wave
self.parent.call_dll(self.channel_api.LoadWaveforms,
waveforms,
msg="loading waveforms")
def exc_writearray(origin = "A3", worksheetname= "Sheets"):
originnr = [i for i in origin if i.isdigit()][0]
end = len(ex_row) - 1 + int(originnr)
xlapp = Marshal.GetActiveObject('Excel.Application')
worksheet = xlapp.sheets(worksheetname) #Name of the Excel Worksheet
xlrange_id = worksheet.Range["I" + str(originnr), "I" + str(end)]
#from System.Reflection import Missing
from System import Array
array_id = Array.CreateInstance(object, len(ex_row), 1)
# set array_id with values from dic_sheetGuid
for i,j in zip(range(len(ex_row)), ex_row):
if j[0] in dic_sheetGuid:
array_id[i, 0] = dic_sheetGuid[j[0]]
#write array to cellrange_sheetid
if (xlrange_id.Value2.GetLength(0), xlrange_id.Value2.GetLength(1)) \
== (array_id.GetLength(0), array_id.GetLength(1)): # (7,1) == ( 7,1)
xlrange_id.Value2 = array_id
Marshal.ReleaseComObject(xlapp)
return True
def set_fluence_nparray(beam, shaped_fluence, beamlet_size_mm=2.5):
"""sets optimal fluence in beam given numpy array and beamlet size (asserts square fluence, and zero collimator rotation)."""
# assumes all fluence is square with isocenter at center of image
# TODO: implement functionality below to remove assertions
assert beamlet_size_mm == 2.5, "beamlet sizes of other than 2.5 mm are not implemented"
assert shaped_fluence.shape[0] == shaped_fluence.shape[1], "non-square fluence not implemented"
assert beam.ControlPoints[0].CollimatorAngle == 0.0, "non-zero collimator angle not implemented"
_buffer = Array.CreateInstance(System.Single, shaped_fluence.shape[0], shaped_fluence.shape[1])
# note: the shape -1, then divide by 2.0 gives desired center of corner beamlet (half pixel shift)
x_origin = - float(shaped_fluence.shape[0] - 1) * beamlet_size_mm / 2.0
y_origin = + float(shaped_fluence.shape[1] - 1) * beamlet_size_mm / 2.0
for i in range(shaped_fluence.shape[0]):
for j in range(shaped_fluence.shape[1]):
_buffer[i, j] = shaped_fluence[i, j]
fluence = Fluence(_buffer, x_origin, y_origin)
beam.SetOptimalFluence(fluence)
def process(context):
filename = context.Request.Url.AbsolutePath
if not filename:
filename = "index.html"
if filename[0] == '/':
filename = filename[1:]
print(filename)
filename = Path.Combine(root, filename)
print(filename)
if not File.Exists(filename):
context.Response.Abort()
return
input = FileStream(filename, FileMode.Open)
bytes = Array.CreateInstance(Byte, 1024 * 16)
nbytes = input.Read(bytes, 0, bytes.Length)
while nbytes > 0:
context.Response.OutputStream.Write(bytes, 0, nbytes)
nbytes = input.Read(bytes, 0, bytes.Length)
input.Close()
context.Response.OutputStream.Close()
def testCorrectOverloadSelection(self):
"""
Test correct overloading selection for common types.
"""
from System.Drawing import Font
from System import (String, Double, Single, Int16, Int32, Int64)
from System import Math
substr = String("substring")
self.assertTrue(
substr.Substring(2) == substr.Substring.__overloads__[Int32](Int32(
2)))
self.assertTrue(
substr.Substring(2, 3) == substr.Substring.__overloads__[
Int32, Int32](Int32(2), Int32(3)))
for atype, value1, value2 in zip([Double, Single, Int16, Int32, Int64],
[1.0, 1.0, 1, 1, 1],
[2.0, 0.5, 2, 0, -1]):
self.assertTrue(
Math.Abs(atype(value1)) == Math.Abs.__overloads__[atype](atype(
value1)))
self.assertTrue(
Math.Abs(value1) == Math.Abs.__overloads__[atype](atype(
value1)))
self.assertTrue(
Math.Max(atype(value1), atype(value2)) ==
Math.Max.__overloads__[atype,
atype](atype(value1), atype(value2)))
if (atype is Int64) and six.PY2:
value2 = long(value2)
self.assertTrue(
Math.Max(atype(value1), value2) == Math.Max.__overloads__[
atype, atype](atype(value1), atype(value2)))
clr.AddReference("System.Runtime.InteropServices")
from System.Runtime.InteropServices import GCHandle, GCHandleType
from System import Array, Byte
CSArray = Array.CreateInstance(Byte, 1000)
handler = GCHandle.Alloc(CSArray, GCHandleType.Pinned)
def readDataSet(dset):
dspace = H5D.getSpace(dset)
dims = H5S.getSimpleExtentDims(dspace)
print 'dataset rank %d, dimensions %d x %d' % (dims.Length, dims[0],
dims[1])
mspace = H5S.create_simple(dims.Length, dims)
dtype = H5T.copy(H5T_NATIVE_INT)
data = Array.CreateInstance(Int32, dims)
H5D.read(dset, dtype, mspace, dspace, H5P_DEFAULT, H5Array[Int32](data))
print 'Dataset: '
for row in range(data.GetLength(0)):
for col in range(data.GetLength(1)):
print '%d ' % (data[row, col]),
print ''
print ''
# dataset rank 2, dimensions 10 x 5
# chunk rank 2, dimensions 2 x 5
#
# Dataset:
# 1 1 1 3 3
# 1 1 1 3 3
# 1 1 1 0 0
# 2 0 0 0 0
# 2 0 0 0 0
# 2 0 0 0 0
# 2 0 0 0 0
# 2 0 0 0 0
# 2 0 0 0 0
# 2 0 0 0 0
H5T.close(dtype)
H5S.close(mspace)
H5S.close(dspace)
return None
def readChunk(dset):
fspace = H5D.getSpace(dset)
cplist = H5D.getCreatePropertyList(dset)
if H5P.getLayout(cplist) == H5D.Layout.CHUNKED:
cdims = H5P.getChunk(cplist, 2)
print 'chunk rank 2, dimensions %d x %d' % (cdims[0], cdims[1])
dtype = H5T.copy(H5T_NATIVE_INT)
mspace = H5S.create_simple(cdims.Length, cdims)
offset = Array[Int64]((2, 0))
count = Array[Int64]((cdims[0], cdims[1]))
H5S.selectHyperslab(fspace, H5S.SelectOperator.SET, offset, count)
data = Array.CreateInstance(Int32, cdims)
H5D.read(dset, dtype, mspace, fspace, H5P_DEFAULT,
H5Array[Int32](data))
print 'Chunk: '
for row in range(data.GetLength(0)):
for col in range(data.GetLength(1)):
print '%d ' % (data[row, col]),
print ''
print ''
# Chunk:
# 1 1 1 0 0
# 2 0 0 0 0
H5S.close(mspace)
H5T.close(dtype)
H5S.close(fspace)
return None
async def read_gatt_char(self, _uuid: str, use_cached=False, **kwargs) -> bytearray:
"""Perform read operation on the specified GATT characteristic.
Args:
_uuid (str or UUID): The uuid of the characteristics to read from.
use_cached (bool): `False` forces Windows to read the value from the
device again and not use its own cached value. Defaults to `False`.
Returns:
(bytearray) The read data.
"""
characteristic = self.services.get_characteristic(str(_uuid))
if not characteristic:
raise BleakError("Characteristic {0} was not found!".format(_uuid))
read_result = await wrap_IAsyncOperation(
IAsyncOperation[GattReadResult](
characteristic.obj.ReadValueAsync(
BluetoothCacheMode.Cached
if use_cached
else BluetoothCacheMode.Uncached
)
),
return_type=GattReadResult,
loop=self.loop,
)
if read_result.Status == GattCommunicationStatus.Success:
reader = DataReader.FromBuffer(IBuffer(read_result.Value))
output = Array.CreateInstance(Byte, reader.UnconsumedBufferLength)
reader.ReadBytes(output)
value = bytearray(output)
logger.debug("Read Characteristic {0} : {1}".format(_uuid, value))
else:
raise BleakError(
"Could not read characteristic value for {0}: {1}".format(
characteristic.uuid, read_result.Status
)
)
return value
