def __init__(self, *args, **kwargs):
'''
Create data object. There are three different uses:
1) create an empty data object for use in a measurement
2) create a data object and fill immediately with a numpy array
3) create a data object from an existing data file
All inputs are optional.
The 'name' input is used in an internal list (accessable through
qt.data). If omitted, a name will be auto generated.
This 'name' will also be used later to auto generate a filename
when calling 'create_file()' (if that is called without options).
The input 'filename' here is only used for loading an existing file.
args input:
filename (string), set the filename to load.
data (numpy.array), array to construct data object for
kwargs input:
name (string), default will be 'data<n>'
infile (bool), default True
inmem (bool), default False if no file specified, True otherwise
tempfile (bool), default False. If True create a temporary file
for the data.
binary (bool), default True. Whether tempfile should be binary.
'''
# Init SharedGObject a bit lower
name = kwargs.get('name', '')
infile = kwargs.get('infile', True)
inmem = kwargs.get('inmem', False)
self._inmem = inmem
self._tempfile = kwargs.get('tempfile', False)
self._temp_binary = kwargs.get('binary', True)
self._options = kwargs
self._file = None
self._stop_req_hid = None
# Dimension info
self._dimensions = []
self._block_sizes = []
self._loopdims = None
self._loopshape = None
self._complete = False
self._reshaped_data = None
# Number of coordinate dimensions
self._ncoordinates = 0
# Number of value dimensions
self._nvalues = 0
# Number of data points
self._npoints = 0
self._npoints_last_block = 0
self._npoints_max_block = 0
self._comment = []
self._localtime = time.localtime()
self._timestamp = time.asctime(self._localtime)
self._timemark = time.strftime('%H%M%S', self._localtime)
self._datemark = time.strftime('%Y%m%d', self._localtime)
# FIXME: the name generation here is a bit nasty
name = Data._data_list.new_item_name(self, name)
self._name = name
SharedGObject.__init__(self,
'data_%s' % name,
replace=True,
idle_emit=True)
data = get_arg_type(args, kwargs, (numpy.ndarray, list, tuple), 'data')
if data is not None:
self.set_data(data)
else:
self._data = numpy.array([])
self._infile = infile
filepath = get_arg_type(args, kwargs, types.StringType, 'filepath')
if self._tempfile:
self.create_tempfile(filepath)
elif filepath is not None and filepath != '':
if 'inmem' not in kwargs:
inmem = True
self.set_filepath(filepath, inmem)
self._infile = True
else:
self._dir = ''
self._filename = ''
self._infile = infile
# Don't hold references to temporary data files
if not self._tempfile:
Data._data_list.add(name, self)
def __init__(self, *args, **kwargs):
'''
Create data object. There are three different uses:
1) create an empty data object for use in a measurement
2) create a data object and fill immediately with a numpy array
3) create a data object from an existing data file
All inputs are optional.
The 'name' input is used in an internal list (accessable through
qt.data). If omitted, a name will be auto generated.
This 'name' will also be used later to auto generate a filename
when calling 'create_file()' (if that is called without options).
The input 'filename' here is only used for loading an existing file.
args input:
filename (string), set the filename to load.
data (numpy.array), array to construct data object for
kwargs input:
name (string), default will be 'data<n>'
infile (bool), default True
inmem (bool), default False if no file specified, True otherwise
tempfile (bool), default False. If True create a temporary file
for the data.
binary (bool), default True. Whether tempfile should be binary.
'''
# Init SharedGObject a bit lower
name = kwargs.get('name', '')
infile = kwargs.get('infile', True)
inmem = kwargs.get('inmem', False)
self._inmem = inmem
self._tempfile = kwargs.get('tempfile', False)
self._temp_binary = kwargs.get('binary', True)
self._options = kwargs
self._file = None
self._stop_req_hid = None
# Dimension info
self._dimensions = []
self._block_sizes = []
self._loopdims = None
self._loopshape = None
self._complete = False
self._reshaped_data = None
# Number of coordinate dimensions
self._ncoordinates = 0
# Number of value dimensions
self._nvalues = 0
# Number of data points
self._npoints = 0
self._npoints_last_block = 0
self._npoints_max_block = 0
self._comment = []
self._localtime = time.localtime()
self._timestamp = time.asctime(self._localtime)
self._timemark = time.strftime('%H%M%S', self._localtime)
self._datemark = time.strftime('%Y%m%d', self._localtime)
# FIXME: the name generation here is a bit nasty
name = Data._data_list.new_item_name(self, name)
self._name = name
SharedGObject.__init__(self, 'data_%s' % name,
replace=True, idle_emit=True)
data = get_arg_type(args, kwargs,
(numpy.ndarray, list, tuple),
'data')
if data is not None:
self.set_data(data)
else:
self._data = numpy.array([])
self._infile = infile
filepath = get_arg_type(args, kwargs, types.StringType, 'filepath')
if self._tempfile:
self.create_tempfile(filepath)
elif filepath is not None and filepath != '':
if 'inmem' not in kwargs:
inmem = True
self.set_filepath(filepath, inmem)
self._infile = True
else:
self._dir = ''
self._filename = ''
self._infile = infile
# Don't hold references to temporary data files
if not self._tempfile:
Data._data_list.add(name, self)
