def l2index(self,lindex):
'''
Get the site index from lattice indices.
lindex:
lattice index - (n1,n2,...,atom index in cell)
'''
return c2ind(lindex,N=self.siteconfig)
def c2ind(self, indices=None, nambuindex=0, spinindex=0, atomindex=0, orbitindex=0):
"""
Parse space config index into index.
indices:
a len-4 array for all the above indices.
nambuindex/spinindex/atomindex/orbitindex:
index for nambuspace/spinspace/atomspace/orbitspace
"""
if self.smallnambu:
spinindex = 0
if indices == None:
indices = [nambuindex, spinindex, atomindex, orbitindex]
return c2ind(indices, N=self.config)
