def load_LEEM(self):
"""
Load raw binary LEEM-IV data to a 3d numpy array
emit the numpy array as a custom SIGNAL to be retrieved in gui.py
:return:
"""
# requires params: path, imht, imwd
if ( 'path' not in self.params.keys() or
'imht' not in self.params.keys() or
'imwd' not in self.params.keys()):
print('Terminating - ERROR: incorrect parameters for LOAD task')
print('Required Parameters: path, imht, imwd')
self.quit()
self.exit()
if 'bits' not in self.params.keys():
# if bit size is not specified, use default values in process_LEEM_Data()
self.params['bits'] = None
if 'byte' not in self.params.keys():
self.params['byte'] = 'L' # default to Little Endian
# load raw data
dat_3d = LF.process_LEEM_Data(dirname=self.params['path'],
ht=self.params['imht'],
wd=self.params['imwd'],
bits=self.params['bits'],
byte=self.params['byte'])
# emit output signal with np array as generic pyobject type
self.emit(QtCore.SIGNAL('output(PyQt_PyObject)'), dat_3d)
def load_LEEM(self):
"""Load raw binary LEEM-IV data to a 3d numpy array.
Emit the numpy array as a custom SIGNAL to be retrieved in gui.py
:return: None
"""
# requires params: path, imht, imwd
if ('path' not in self.params.keys()
or ('imht' not in self.params.keys())
or ('imwd' not in self.params.keys())):
print('Terminating - ERROR: incorrect parameters for LOAD task')
print('Required Parameters: path, imht, imwd')
self.quit()
self.exit()
if 'bits' not in self.params.keys():
# if bit size is not specified, use default values in process_LEEM_Data()
self.params['bits'] = None
if 'byte' not in self.params.keys():
self.params['byte'] = 'L' # default to Little Endian
# load raw data
dat_3d = None
try:
dat_3d = LF.process_LEEM_Data(dirname=self.params['path'],
ht=self.params['imht'],
wd=self.params['imwd'],
bits=self.params['bits'],
byte=self.params['byte'])
except IOError as e:
print("Error Loading LEEM Data:")
print(e)
print(
"LEEM data files not found in directory specified in YAML experiment config file."
)
print(
"Please re-check the settings in your YAML experiment config file."
)
print(
"Ensure that the path setting points to the correct directory."
)
return
except LF.InvalidParameterError as e:
print(e.message)
return
if dat_3d is None:
self.quit()
self.exit()
else:
self.outputSIGNAL.emit(dat_3d) # type: np.ndarray
def load_LEED_RAW(self, dirname):
"""
Load RAW binary files into 3d numpy array
This is the fastest method for loading data
This should only be called from load_LEED_Data()
:return: 3d numpy array
"""
# maybe not needed
prev_dir = self.data_dir
files = [name for name in os.listdir(dirname) if name.endswith('.dat')]
print('Number of Files found: {}'.format(len(files)))
if self.ht >= 2 and self.wd >= 2:
# image parameters were correctly set through GUI
return LF.process_LEEM_Data(dirname, self.ht, self.wd)
else:
# image parameters were not set through GUI
print('!Warning: Invalid Image Parameters while loading RAW data!')
print('Returning Empty array ...')
return np.zeros((500, 500, 100)) # placeholder array
def load_LEED_RAW(self, dirname):
"""
Load RAW binary files into 3d numpy array
This is the fastest method for loading data
This should only be called from load_LEED_Data()
:return: 3d numpy array
"""
# maybe not needed
prev_dir = self.data_dir
files = [name for name in os.listdir(dirname) if name.endswith('.dat')]
print('Number of Files found: {}'.format(len(files)))
if self.ht >= 2 and self.wd >= 2:
# image parameters were correctly set through GUI
return LF.process_LEEM_Data(dirname, self.ht, self.wd)
else:
# image parameters were not set through GUI
print('!Warning: Invalid Image Parameters while loading RAW data!')
print('Returning Empty array ...')
return np.zeros((500, 500, 100)) # placeholder array
