def new_file_series0(first_object, first=None, last=None, step=1):
"""
Created from a fabio image
first and last are file numbers
"""
im = first_object
nimages = 0
# for counting images
if None in (first, last):
step = 0
total = 1
else:
total = last - first
yield im
while nimages < total:
nimages += step
try:
newim = im.next()
im = newim
except Exception, error:
pytraceback.print_exc()
# Skip bad images
logger.warning("Got a problem here: %s", error)
try:
im.filename = next_filename(im.filename)
except Exception, error:
# KE: This will not work and will throw an exception
# fabio.next_filename doesn't understand %nnnn on the end
logger.warning("Got another problem here: %s", error)
im.filename = next_filename(im.sequencefilename)
yield None
def new_file_series0(first_object, first=None, last=None, step=1):
"""
Created from a fabio image
first and last are file numbers
"""
im = first_object
nimages = 0
# for counting images
if None in (first, last):
step = 0
total = 1
else:
total = last - first
yield im
while nimages < total:
nimages += step
try:
newim = im.next()
im = newim
except Exception, error:
pytraceback.print_exc()
# Skip bad images
logger.warning("Got a problem here: %s", error)
try:
im.filename = next_filename(im.filename)
except Exception, error:
# KE: This will not work and will throw an exception
# fabio.next_filename doesn't understand %nnnn on the end
logger.warning("Got another problem here: %s", error)
im.filename = next_filename(im.sequencefilename)
yield None
def new_file_series(first_object, nimages=0, step=1, traceback=False):
"""
A generator function that creates a file series starting from a a fabioimage.
Iterates through all images in a file (if more than 1), then proceeds to
the next file as determined by fabio.next_filename.
first_object: the starting fabioimage, which will be the first one yielded
in the sequence
nimages: the maximum number of images to consider
step: step size, will yield the first and every step'th image until nimages
is reached. (e.g. nimages = 5, step = 2 will yield 3 images (0, 2, 4)
traceback: if True causes it to print a traceback in the event of an
exception (missing image, etc.). Otherwise the calling routine can handle
the exception as it chooses
yields: the next fabioimage in the series.
In the event there is an exception, it yields the sys.exec_info for the
exception instead. sys.exec_info is a tuple:
( exceptionType, exceptionValue, exceptionTraceback )
from which all the exception information can be obtained.
Suggested usage:
for obj in new_file_series( ... ):
if not isinstance( obj, fabio.fabioimage.fabioimage ):
# deal with errors like missing images, non readable files, etc
# e.g.
traceback.print_exception(obj[0], obj[1], obj[2])
"""
im = first_object
nprocessed = 0
abort = False
if nimages > 0:
yield im
nprocessed += 1
while nprocessed < nimages:
try:
newim = im.next()
im = newim
retVal = im
except Exception, ex:
import sys
retVal = sys.exc_info()
if(traceback):
import traceback
traceback.print_exc()
# Skip bad images
print "Got a problem here: next() failed"
# Skip bad images
try:
im.filename = next_filename(im.filename)
except:
pass
if nprocessed % step == 0:
yield retVal
# Avoid cyclic references with exc_info ?
retVal = None
if abort: break
nprocessed += 1
def next(self):
"""
Get the next image in a series as a fabio image
"""
if self.currentframe < (self.nframes - 1) and self.nframes > 1:
return self.getframe(self.currentframe + 1)
else:
newobj = GEimage()
newobj.read(next_filename(self.sequencefilename))
return newobj
def next(self):
"""
Get the next image in a series as a fabio image
"""
if self.currentframe < (self.nframes - 1) and self.nframes > 1:
return self.getframe(self.currentframe + 1)
else:
newobj = GEimage()
newobj.read(next_filename(self.sequencefilename))
return newobj
def new_file_series(first_object, nimages=0, step=1, traceback=False):
"""
A generator function that creates a file series starting from a a fabioimage.
Iterates through all images in a file (if more than 1), then proceeds to
the next file as determined by fabio.next_filename.
@param first_object: the starting fabioimage, which will be the first one yielded
in the sequence
@param nimages: the maximum number of images to consider
step: step size, will yield the first and every step'th image until nimages
is reached. (e.g. nimages = 5, step = 2 will yield 3 images (0, 2, 4)
@param traceback: if True causes it to print a traceback in the event of an
exception (missing image, etc.). Otherwise the calling routine can handle
the exception as it chooses
@param yields: the next fabioimage in the series.
In the event there is an exception, it yields the sys.exec_info for the
exception instead. sys.exec_info is a tuple:
( exceptionType, exceptionValue, exceptionTraceback )
from which all the exception information can be obtained.
Suggested usage:
::
for obj in new_file_series( ... ):
if not isinstance(obj, fabio.fabioimage.fabioimage ):
# deal with errors like missing images, non readable files, etc
# e.g.
traceback.print_exception(obj[0], obj[1], obj[2])
"""
im = first_object
nprocessed = 0
abort = False
if nimages > 0:
yield im
nprocessed += 1
while nprocessed < nimages:
try:
newim = im.next()
im = newim
retVal = im
except Exception, ex:
retVal = sys.exc_info()
if (traceback):
pytraceback.print_exc()
# Skip bad images
logger.warning("Got a problem here: next() failed %s", ex)
# Skip bad images
try:
im.filename = next_filename(im.filename)
except Exception, ex:
logger.warning(
"Got another problem here: next_filename(im.filename) %s",
ex)
def next(self):
""" returns the next file in the series as a fabioimage """
import openimage
return openimage.openimage(
fabioutils.next_filename(self.filename))
def next(self):
""" returns the next file in the series as a fabioimage """
import openimage
return openimage.openimage(fabioutils.next_filename(self.filename))
