def grp_info(self, grp_name, print_out=True):
"""
Print out and return information on any given group
:param grp_name: group name, string
:param print_out: print-out flag, boolean
:return: count dimensions, dimensions, order, cell's name
"""
error, cell_name, grp_count_dimensions, grp_dimensions, grp_order = nefis.inqgrp(self.fp, grp_name)
self._print_error(error)
if print_out:
print(' Group count : "%d"' % grp_count_dimensions)
print(' Dimensions : "%s"' % grp_dimensions)
print(' Group order : "%s"' % grp_order)
print(' Cell name : "%s"' % cell_name)
# maximum used index of the free dimension of a data group
error, ntimes = nefis.inqmxi (self.fp, grp_name)
self._print_error(error)
print(' Nb time step : "%d"' % ntimes)
return grp_count_dimensions, grp_dimensions, grp_order, cell_name
def _elm_list(self):
"""
Read elements from the definition file.
"""
nelm = 0
while True:
if nelm == 0:
error, elm_name, elm_type, elm_quantity, elm_unit, elm_description, elm_single_bytes, elm_bytes, elm_count, elm_dimensions = nefis.inqfel(self.fp)
else:
error, elm_name, elm_type, elm_quantity, elm_unit, elm_description, elm_single_bytes, elm_bytes, elm_count, elm_dimensions = nefis.inqnel(self.fp)
if error == -6024: # no more elements to read
return self.elmlist
elif not error == 0: # some other error
self._print_error(error)
break
else:
nelm+=1
self.elmlist.append(elm_name)
# define dictionaries for each element name
self.elm[elm_name]={}
self.elm[elm_name]['info']={}
info = self.elm[elm_name]['info']
info['type'] = elm_type
info['unit'] = elm_unit
info['desc'] = elm_description
info['bytesize'] = elm_single_bytes
info['bytes'] = elm_bytes
info['ndim'] = elm_count
info['dims'] = elm_dimensions[::-1] # reverse dimensions (C vs Fortran ??)
elm_grp = self._find_elm(elm_name)[0]
info['group'] = elm_grp
# Give the maximum used index of the free dimension of a data group
error, ntimes = nefis.inqmxi(self.fp, elm_grp)
self._print_error(error)
info['ntimes'] = ntimes
def _grp_list(self):
"""
Reads groups from definition file
"""
ngrp = 0
while True:
if ngrp == 0:
error, grp_name, cel_name, grp_count_dimensions, grp_dimensions, grp_order = nefis.inqfgr(self.fp)
else:
error, grp_name, cel_name, grp_count_dimensions, grp_dimensions, grp_order = nefis.inqngr(self.fp)
if error == -6028: # no more groups to read
return self.grplist
elif not error == 0: # some other error
self._print_error(error)
break
else:
ngrp += 1
self.grplist.append(grp_name)
# Give the maximum used index of the free dimension of a data group.
error, ntimes = nefis.inqmxi(self.fp, grp_name)
self._print_error(error)
self.grp[grp_name]={}
self.grp[grp_name]['ntimes'] = ntimes