def absorb_delimiter_item(fp, is_little_endian, delimiter):
"""Read (and ignore) undefined length sequence or item terminators."""
if is_little_endian:
struct_format = "<HHL"
else:
struct_format = ">HHL"
group, elem, length = unpack(struct_format, fp.read(8))
tag = TupleTag((group, elem))
if tag != delimiter:
msg = "Did not find expected delimiter '%s'" % dictionary_description(delimiter)
msg += ", instead found %s at file position 0x%x" %(str(tag), fp.tell()-8)
logger.warn(msg)
fp.seek(fp.tell()-8)
return
logger.debug("%04x: Found Delimiter '%s'", fp.tell()-8, dictionary_description(delimiter))
if length == 0:
logger.debug("%04x: Read 0 bytes after delimiter", fp.tell()-4)
else:
logger.debug("%04x: Expected 0x00000000 after delimiter, found 0x%x", fp.tell()-4, length)
def absorb_delimiter_item(fp, is_little_endian, delimiter):
"""Read (and ignore) undefined length sequence or item terminators."""
if is_little_endian:
struct_format = "<HHL"
else:
struct_format = ">HHL"
group, elem, length = unpack(struct_format, fp.read(8))
tag = TupleTag((group, elem))
if tag != delimiter:
msg = "Did not find expected delimiter '%s'" % dictionary_description(
delimiter)
msg += ", instead found %s at file position 0x%x" % (str(tag),
fp.tell() - 8)
logger.warn(msg)
fp.seek(fp.tell() - 8)
return
logger.debug("%04x: Found Delimiter '%s'",
fp.tell() - 8, dictionary_description(delimiter))
if length == 0:
logger.debug("%04x: Read 0 bytes after delimiter", fp.tell() - 4)
else:
logger.debug("%04x: Expected 0x00000000 after delimiter, found 0x%x",
fp.tell() - 4, length)
def description(self):
"""Return the DICOM dictionary description for this dicom tag."""
if dictionary_has_tag(self.tag):
name = dictionary_description(self.tag)
elif self.tag.is_private:
name = "Private tag data" # default
if hasattr(self, 'private_creator'):
try:
# If have name from private dictionary, use it, but
# but put in square brackets so is differentiated,
# and clear that cannot access it by name
name = "[" + private_dictionary_description(self.tag, self.private_creator) + "]"
except KeyError:
pass
elif self.tag.elem >> 8 == 0:
name = "Private Creator"
elif self.tag.element == 0: # implied Group Length dicom versions < 3
name = "Group Length"
else:
name = ""
return name
def description(self):
"""Return the DICOM dictionary description for this dicom tag."""
if dictionary_has_tag(self.tag):
name = dictionary_description(self.tag)
elif self.tag.is_private:
name = "Private tag data" # default
if hasattr(self, 'private_creator'):
try:
# If have name from private dictionary, use it, but
# but put in square brackets so is differentiated,
# and clear that cannot access it by name
name = "[" + private_dictionary_description(self.tag, self.private_creator) + "]"
except KeyError:
pass
elif self.tag.elem >> 8 == 0:
name = "Private Creator"
elif self.tag.element == 0: # implied Group Length dicom versions < 3
name = "Group Length"
else:
name = ""
return name
def testRepeaters(self):
"""dicom_dictionary: Tags with "x" return correct dict info........"""
self.assertEqual(dictionary_description(0x280400), 'Transform Label')
self.assertEqual(dictionary_description(0x280410),
'Rows For Nth Order Coefficients')
def testRepeaters(self):
"""dicom_dictionary: Tags with "x" return correct dict info........"""
self.assertEqual(dictionary_description(0x280400), 'Transform Label')
self.assertEqual(dictionary_description(0x280410), 'Rows For Nth Order Coefficients')
