class CompxsLibrary(_XSLibrary):
"""
Library object used in reading/writing COMPXS files.
Contains macroscopic cross sections for homogenized regions.
See Also
--------
:py:class:`IsotxsLibrary`
:py:func:`armi.nuclearDataIO.compxs.readBinary`
Examples
--------
>>> lib = compxs.readBinary('COMPXS')
>>> lib.regions
"""
def __init__(self):
_XSLibrary.__init__(self)
self._regions = {}
self.compxsMetadata = RegionXSMetadata()
def __setitem__(self, key, value):
_XSLibrary.__setitem__(self, key, value)
self._regions[key] = value
def __getitem__(self, key):
return self._regions[key]
def __delitem__(self, key):
_XSLibrary.__delitem__(self, key)
del self._regions[key]
@property
def regions(self):
return [self[name] for name in self._orderedNuclideLabels]
@property
def regionLabels(self):
return list(self._orderedNuclideLabels)
def merge(self, other):
"""Merge two ``COMPXS`` libraries."""
self._mergeProperties(other)
self.compxsMetadata = self.compxsMetadata.merge(
other.compxsMetadata, self, other, "COMPXS", CompxsError)
self._appendRegions(other)
def _mergeProperties(self, other):
properties.unlockImmutableProperties(other)
try:
self._mergeNeutronEnergies(other)
finally:
properties.lockImmutableProperties(other)
def _appendRegions(self, other):
offset = len(self.regions)
for region in other.regions:
newNumber = region.regionNumber + offset
self[newNumber] = region
self.compxsMetadata["numComps"] = len(self.regions)
def _getMetadata(self):
specs = RegionXSMetadata()
chiFlag = specs["fileWideChiFlag"] = self._getFileMetadata(
)["fileWideChiFlag"]
if chiFlag:
self.macros.chi = specs["fileWideChi"] = self._getFileMetadata(
)["fileWideChi"]
compFamiliesWithPrecursors = self._getFileMetadata(
)["compFamiliesWithPrecursors"]
if compFamiliesWithPrecursors is not None and compFamiliesWithPrecursors.size:
specs["numPrecursorFamilies"] = compFamiliesWithPrecursors[
self.regionNumber]
else:
specs["numPrecursorFamilies"] = 0
return specs
def __init__(self):
_XSLibrary.__init__(self)
self._regions = {}
self.compxsMetadata = RegionXSMetadata()