def byframe(self, start, stop=None, step=1, slc=slice(None), nframes=1):
start = wrap_check_start(self.shape[0], start)
if stop is None:
stop = start + step*nframes
else:
stop = wrap_check_stop(self.shape[0], stop)
fnumstart, fstart = self._findbyframe(start)
fnumstop, fstop = self._findbyframe(stop)
return self._read_frames(fnumstart, fstart, fnumstop, fstop, step, slc)
def read_from_block(self, block_num, start, stop=None, step=1, nframes=1,
chan_idx=slice(None), sample_idx=slice(None)):
start = wrap_check_start(self.nprofiles_per_block, start)
if stop is None:
stop = start + step*nframes
else:
stop = wrap_check_stop(self.nprofiles_per_block, stop)
## change ints to lists so that we don't lose dimensions when indexing
#if isinstance(chan_idx, int):
#chan_idx = [chan_idx]
#if isinstance(sample_idx, int):
#sample_idx = [sample_idx]
return self._read_from_block(block_num, start, stop, step, chan_idx, sample_idx)
def read_voltage(self, start, stop=None, step=1, nframes=1,
chan_idx=slice(None), sample_idx=slice(None)):
start = wrap_check_start(self.shape[0], start)
if stop is None:
stop = start + step*nframes
else:
stop = wrap_check_stop(self.shape[0], stop)
## change ints to lists so that we don't lose dimensions when indexing
#if isinstance(chan_idx, int):
#chan_idx = [chan_idx]
#if isinstance(sample_idx, int):
#sample_idx = [sample_idx]
# find blocks for start and stop
bstart, strt = divmod(start, self.nprofiles_per_block)
# want block of last profile to include, hence profile number end = stop - 1
end = stop - 1
bend, nend = divmod(end, self.nprofiles_per_block)
stp = nend + 1
return self._read_from_blocks(bstart, strt, bend, stp, step, chan_idx, sample_idx)
