def __getitem__(self, key):
"""Operator for dataset[key] request."""
tag = Tag(key)
data_elem = dict.__getitem__(self, tag)
if isinstance(data_elem, DataElement):
return data_elem
elif isinstance(data_elem, tuple):
# If a deferred read, then go get the value now
if data_elem.value is None:
from pydicom.filereader import read_deferred_data_element
data_elem = read_deferred_data_element(self.fileobj_type,
self.filename,
self.timestamp,
data_elem)
if tag != (0x08, 0x05):
character_set = self._character_set
else:
character_set = default_encoding
# Not converted from raw form read from file yet; do so now
self[tag] = DataElement_from_raw(data_elem,
character_set,
force=self._force)
return dict.__getitem__(self, tag)
def __getitem__(self, key):
"""Operator for dataset[key] request."""
tag = Tag(key)
data_elem = dict.__getitem__(self, tag)
if isinstance(data_elem, DataElement):
return data_elem
elif isinstance(data_elem, tuple):
# If a deferred read, then go get the value now
if data_elem.value is None:
from pydicom.filereader import read_deferred_data_element
data_elem = read_deferred_data_element(self.fileobj_type, self.filename, self.timestamp, data_elem)
if tag != (0x08, 0x05):
character_set = self._character_set
else:
character_set = default_encoding
# Not converted from raw form read from file yet; do so now
self[tag] = DataElement_from_raw(data_elem, character_set)
return dict.__getitem__(self, tag)
def __getitem__(self, key):
"""Operator for Dataset[key] request.
Any deferred data elements will be read in and an attempt will be made
to correct any elements with ambiguous VRs.
Examples
--------
Indexing using DataElement tag
>>> ds = Dataset()
>>> ds.SOPInstanceUID = '1.2.3'
>>> ds.PatientName = 'CITIZEN^Jan'
>>> ds.PatientID = '12345'
>>> ds[0x00100010]
'CITIZEN^Jan'
Slicing using DataElement tag
All group 0x0010 elements in the dataset
>>> ds[0x00100000:0x0011000]
(0010, 0010) Patient's Name PN: 'CITIZEN^Jan'
(0010, 0020) Patient ID LO: '12345'
All group 0x0002 elements in the dataset
>>> ds[(0x0002, 0x0000):(0x0003, 0x0000)]
Parameters
----------
key
The DICOM (group, element) tag in any form accepted by
pydicom.tag.Tag such as [0x0010, 0x0010], (0x10, 0x10), 0x00100010,
etc. May also be a slice made up of DICOM tags.
Returns
-------
pydicom.dataelem.DataElement or pydicom.dataset.Dataset
If a single DICOM element tag is used then returns the
corresponding DataElement. If a slice is used then returns a
Dataset object containing the corresponding DataElements.
"""
# If passed a slice, return a Dataset containing the corresponding
# DataElements
if isinstance(key, slice):
ds = Dataset()
for tag in self._slice_dataset(key.start, key.stop, key.step):
ds.add(self[tag])
return ds
tag = Tag(key)
data_elem = dict.__getitem__(self, tag)
if isinstance(data_elem, DataElement):
return data_elem
elif isinstance(data_elem, tuple):
# If a deferred read, then go get the value now
if data_elem.value is None:
from pydicom.filereader import read_deferred_data_element
data_elem = read_deferred_data_element(self.fileobj_type,
self.filename,
self.timestamp,
data_elem)
if tag != (0x08, 0x05):
character_set = self._character_set
else:
character_set = default_encoding
# Not converted from raw form read from file yet; do so now
self[tag] = DataElement_from_raw(data_elem, character_set)
# If the Element has an ambiguous VR, try to correct it
if 'or' in self[tag].VR:
from pydicom.filewriter import correct_ambiguous_vr_element
self[tag] = correct_ambiguous_vr_element(
self[tag], self, data_elem[6])
return dict.__getitem__(self, tag)
def __getitem__(self, key):
"""Operator for Dataset[key] request.
Any deferred data elements will be read in and an attempt will be made
to correct any elements with ambiguous VRs.
Examples
--------
Indexing using DataElement tag
>>> ds = Dataset()
>>> ds.SOPInstanceUID = '1.2.3'
>>> ds.PatientName = 'CITIZEN^Jan'
>>> ds.PatientID = '12345'
>>> ds[0x00100010]
'CITIZEN^Jan'
Slicing using DataElement tag
All group 0x0010 elements in the dataset
>>> ds[0x00100000:0x0011000]
(0010, 0010) Patient's Name PN: 'CITIZEN^Jan'
(0010, 0020) Patient ID LO: '12345'
All group 0x0002 elements in the dataset
>>> ds[(0x0002, 0x0000):(0x0003, 0x0000)]
Parameters
----------
key
The DICOM (group, element) tag in any form accepted by
pydicom.tag.Tag such as [0x0010, 0x0010], (0x10, 0x10), 0x00100010,
etc. May also be a slice made up of DICOM tags.
Returns
-------
pydicom.dataelem.DataElement or pydicom.dataset.Dataset
If a single DICOM element tag is used then returns the
corresponding DataElement. If a slice is used then returns a
Dataset object containing the corresponding DataElements.
"""
# If passed a slice, return a Dataset containing the corresponding
# DataElements
if isinstance(key, slice):
ds = Dataset()
for tag in self._slice_dataset(key.start, key.stop, key.step):
ds.add(self[tag])
return ds
tag = Tag(key)
data_elem = dict.__getitem__(self, tag)
if isinstance(data_elem, DataElement):
return data_elem
elif isinstance(data_elem, tuple):
# If a deferred read, then go get the value now
if data_elem.value is None:
from pydicom.filereader import read_deferred_data_element
data_elem = read_deferred_data_element(
self.fileobj_type, self.filename, self.timestamp,
data_elem)
if tag != (0x08, 0x05):
character_set = self._character_set
else:
character_set = default_encoding
# Not converted from raw form read from file yet; do so now
self[tag] = DataElement_from_raw(data_elem, character_set)
# If the Element has an ambiguous VR, try to correct it
if 'or' in self[tag].VR:
from pydicom.filewriter import correct_ambiguous_vr_element
self[tag] = correct_ambiguous_vr_element(
self[tag], self, data_elem[6])
return dict.__getitem__(self, tag)