mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 03:33:50 +01:00
f0dfabff38
Now the tail have a fixed size. It actually makes everything simpler. I took order_min = -1 and order_max = 8. This makes the tails compatible with the previous implementation. However we might want to change this to something like -10, 10 so that they are self-contained. This commit should also fix issue #11.
71 lines
3.1 KiB
Python
71 lines
3.1 KiB
Python
from gf import GfImTime_cython, MeshImTime, TailGf
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from gf_generic import GfGeneric
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import numpy
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from tools import get_indices_in_dict
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from nothing import Nothing
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import impl_plot
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class GfImTime ( GfGeneric, GfImTime_cython ) :
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def __init__(self, **d):
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"""
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The constructor have two variants : you can either provide the mesh in
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Matsubara frequencies yourself, or give the parameters to build it.
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All parameters must be given with keyword arguments.
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GfImTime(indices, beta, statistic, n_points, data, tail, name)
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* ``indices``: a list of indices names of the block
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* ``beta``: Inverse Temperature
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* ``statistic``: 'F' or 'B'
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* ``n_points`` : Number of time points in the mesh
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* ``data``: A numpy array of dimensions (len(indices),len(indices),n_points) representing the value of the Green function on the mesh.
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* ``tail``: the tail
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* ``name``: a name of the GF
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GfImTime (indices, mesh, data, tail, name)
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* ``indices``: a list of indices names of the block
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* ``mesh``: a MeshGf object, such that mesh.TypeGF== GF_Type.Imaginary_Time
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* ``data``: A numpy array of dimensions (len(indices),len(indices),n_points) representing the value of the Green function on the mesh.
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* ``tail``: the tail
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* ``name``: a name of the GF
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.. warning::
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The Green function take a **view** of the array data, and a **reference** to the tail.
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"""
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mesh = d.pop('mesh',None)
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if mesh is None :
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if 'beta' not in d : raise ValueError, "beta not provided"
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beta = float(d.pop('beta'))
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n_max = d.pop('n_points',10000)
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stat = d.pop('statistic','F')
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kind = d.pop('kind','H')
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mesh = MeshImTime(beta,stat,n_max,kind)
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self.dtype = numpy.float64
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indices_pack = get_indices_in_dict(d)
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indicesL, indicesR = indices_pack
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N1, N2 = len(indicesL),len(indicesR)
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data = d.pop('data') if 'data' in d else numpy.zeros((len(mesh),N1,N2), self.dtype )
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tail = d.pop('tail') if 'tail' in d else TailGf(shape = (N1,N2))
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symmetry = d.pop('symmetry', Nothing())
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name = d.pop('name','g')
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assert len(d) ==0, "Unknown parameters in GFBloc constructions %s"%d.keys()
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GfGeneric.__init__(self, mesh, data, tail, symmetry, indices_pack, name, GfImTime)
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GfImTime_cython.__init__(self, mesh, data, tail)
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#-------------- PLOT ---------------------------------------
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def _plot_(self, opt_dict):
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""" Plot protocol. opt_dict can contain :
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* :param RI: 'R', 'I', 'RI' [ default]
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* :param x_window: (xmin,xmax) or None [default]
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* :param name: a string [default ='']. If not '', it remplaces the name of the function just for this plot.
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"""
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has_complex_value = False
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return impl_plot.plot_base( self, opt_dict, r'$\tau$', lambda name : r'%s$(\tau)$'%name, has_complex_value , list(self.mesh) )
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