def x_data_view(self, x_window = None, flatten_y = False):
"""
:param x_window: the window of x variable (omega/omega_n/t/tau) for which data is requested
if None, take the full window
:param flatten_y: If the Green function is of size (1, 1) flatten the array as a 1d array
:rtype: a tuple (X, data) where
* X is a 1d numpy of the x variable inside the window requested
* data is a 3d numpy array of dim (:,:, len(X)), the corresponding slice of data
If flatten_y is True and dim is (1, 1, *), returns a 1d numpy
"""
X = [x.imag for x in self.mesh] if type(self.mesh) == MeshImFreq else [x for x in self.mesh]
X, data = numpy.array(X), self.data
if x_window:
sl = clip_array (X, *x_window) if x_window else slice(len(X)) # the slice due to clip option x_window
X, data = X[sl], data[:,:, sl]
if flatten_y and data.shape[:2]==(1, 1): data = data[0, 0,:]
return X, data
def plot_base (self, opt_dict, xlabel, ylabel, use_ris, X):
""" Plot protocol. opt_dict can contain :
* :param RIS: 'R', 'I', 'S', 'RI' [ default]
* :param x_window: (xmin,xmax) or None [default]
* :param Name: a string [default ='']. If not '', it remplaces the name of the function just for this plot.
"""
Name = opt_dict.pop('Name', '' ) # consume it
NamePrefix = opt_dict.pop('NamePrefix', '' ) # consume it
if Name and NamePrefix : raise ValueError, 'Name and NamePrefix can not be used at the same time'
if NamePrefix : name_save, self.name = self.name, Name or NamePrefix
rx = opt_dict.pop('x_window',None ) # consume it
X = numpy.array(X).real
sl = clip_array (X, *rx) if rx else slice(len(X)) # the slice due to clip option x_window
def mdic( prefix, f) :
return [{'type' : "XY",
'xlabel' : xlabel,
'ylabel' : ylabel (self.name),
'xdata' : X[sl],
'label' : Name if Name else prefix + B.name ,
'ydata' : f( B.data[0,0,sl] ) } for (i,j,B) in self ]
if use_ris :
ris = opt_dict.pop('RI','RI')
if ris == "R" :
res = mdic( 'Re ', lambda x : x.real)
elif ris == "I" :
res = mdic( 'Im ', lambda x : x.imag)
elif ris == "S" :
res = mdic( '', lambda x : -1/numpy.pi *x.imag)
elif ris == 'RI' :
res = mdic( 'Re ', lambda x : x.real) + mdic( 'Im ', lambda x : x.imag)
else :
raise ValueError, "RIS flags meaningless %s"%ris
else:
res = mdic( '', lambda x : x)
if NamePrefix: self.name = name_save
return res