def __init__(self, handle, start=0, byteSkip=0):
self.error = Error()
self.handle = handle #must set this so it doesn't get ref-counted away
SegmentSource.__init__(
self,
nitropy.nitf_SegmentFileSource_construct(handle.ref, start,
byteSkip, self.error))
def __init__(self):
if PluginRegistry.__instance:
self = PluginRegistry.__instance
else:
PluginRegistry.__instance = self
PluginRegistry.__instance.error = Error()
PluginRegistry.__instance.ref = nitropy.nitf_PluginRegistry_getInstance(PluginRegistry.__instance.error)
def __init__(self, handle, start=0, nbpp=1, pixelskip=0):
self.error = Error()
self.handle = handle #must set this so it doesn't get ref-counted away
BandSource.__init__(
self,
nitropy.nitf_FileSource_construct(handle.ref, start, nbpp,
pixelskip, self.error))
def __init__(self, ref=None, version=NITF_VER_21):
self.error = Error()
if ref is not None:
self.ref = ref
else:
self.ref = nitropy.nitf_Record_construct(version, self.error)
self.header = FileHeader(self.ref.header)
def _get_listof(self, type):
type = type.lower()
if type == 'image' or type == 'images':
type = 'Image'
elif type == 'graphic' or type == 'graphics':
type = 'Graphic'
elif type == 'text' or type == 'texts':
type = 'Text'
elif type == 'label' or type == 'labels':
type = 'Label'
elif type == 'dataextension' or type == 'dataextensions' \
or type == 'de' or type == 'des':
type = 'DE'
elif type == 'reservedextension' or type == 'reservedextensions' \
or type == 're' or type == 'res':
type = 'RE'
else:
return None
arr = []
error = Error()
num = eval('nitropy.py_Record_getNum%ss(self.ref)' % type)
for i in range(num):
arr.append(
eval('%sSegment( \
nitropy.py_Record_get%s(self.ref, i, error))' % (type, type)))
#could use frozenset to be immutable list...
return tuple(arr)
def __init__(self):
self.error = Error()
self.ref = nitropy.nitf_Writer_construct(self.error)
if not self.ref:
raise Exception('Unable to create Writer')
self._imageWriters, self._graphicWriters = [], []
self.io = None
def __init__(self, data, size=-1, start=0, nbpp=1, pixelskip=0):
self.error = Error()
if size == -1:
size = len(data)
BandSource.__init__(
self,
nitropy.nitf_MemorySource_construct(data, size, start, nbpp,
pixelskip, self.error))
def __init__(self, rowSkip = 1, colSkip = 1):
"""
Default row and column skips are 1, meaning no downsampling
"""
self.rowSkip = rowSkip
self.colSkip = colSkip
self.error = Error()
DownSampler.__init__(self, nitropy.nitf_MaxDownSample_construct(rowSkip, colSkip, self.error))
def __init__(self, filename, accessFlags=ACCESS_READONLY, createFlags=OPEN_EXISTING):
self.filename = filename
self.error = Error()
self.ref = nitropy.py_IOHandle_create(
filename, accessFlags, createFlags, self.error)
if self.ref < 0:
raise Exception, 'Unable to open IOHandle at location %s' % filename
self.open = True
def __init__(self, data, size=-1, start=0, byteSkip=0):
self.error = Error()
if size == -1:
size = len(data)
SegmentSource.__init__(
self,
nitropy.nitf_SegmentMemorySource_construct(data, size, start,
byteSkip, self.error))
def __init__(self, ref):
"""
Create either a new TRE or refer to an existing underlying TRE
The ref parameter is checked
"""
self.error = Error()
if not ref or isinstance(ref, str):
tag = ref
ref = nitropy.nitf_TRE_construct(tag, None, self.error)
if not ref:
raise Exception('Unable to create TRE with tag \'%s\'' % tag)
self.ref = ref
def __init__(self, ref, field_list=None):
self.ref = ref
self.error = Error()
self.fieldMap = {}
#set up the map of fields
for func in dir(ref):
name = str(func)
obj = ref.__getattribute__(name)
#check if it is a Field
if isinstance(obj, nitropy.nitf_Field):
self.fieldMap[name.lower()] = 'self.ref.%s' % name
if field_list:
for field in field_list:
self.fieldMap[field['id'].lower()] = 'self.ref.%s' % field['name']
def getComponentInfo(self, type, index):
error = Error()
return ComponentInfo(
nitropy.py_FileHeader_getComponentInfo(self.ref, index,
str(type).lower(), error))
def intValue(self):
error = Error()
return nitropy.py_Field_getInt(self.ref, error)
def setString(self, data):
error = Error()
retval = nitropy.nitf_Field_setString(self.ref, str(data), error)
def getString(self):
error = Error()
return nitropy.py_Field_getString(self.ref, error)
def __init__(self, ref):
self.ref = ref
self.error = Error()
self.subheader = None
def __init__(self):
self.error = Error()
self.ref = nitropy.nitf_Reader_construct(self.error)
self.io, self.record = None, None
def __init__(self, ref):
self.ref = ref
self.error = Error()
def __init__(self, ref, nbpp):
self.ref = ref
self.error = Error()
self.nbpp = nbpp
def loadDir(dirname):
""" Loads any plugins in the given directory """
error = Error()
if not nitropy.nitf_PluginRegistry_loadDir(dirname, error):
raise Exception('Unable to load the directory: %s (error=%s)' %
(dirname, error.message))
def __init__(self, ref):
self.ref = ref
if not hasattr(self, 'error'):
self.error = Error()
def __init__(self):
self.error = Error()
self.ref = nitropy.nitf_ImageSource_construct(self.error)
self._attached = []
