Haar missing implementations
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#ScalingProjector cannot be defined by precision
#Next piece of code shows the problem
from vampyr import vampyr1d as vp
import matplotlib.pyplot as plt
import numpy as np
x_min = 0
x_max = 1
order = 0 #Haar order
precision = 10**(-10)
mra = vp.MultiResolutionAnalysis(box=[x_min, x_max], order=order)
P_eps = vp.ScalingProjector(mra, prec = precision) #projects only on zero scale
def f(x):
return np.sin( np.pi * x[0] )
f_eps = P_eps(f) #create a tree with only one node
print(f_eps)
x_vec = np.linspace(0, 0.9999, 1000)
f_plt = np.array([f([x]) for x in x_vec ])
f_eps_plt = np.array([f_eps([x]) for x in x_vec ])
plt.plot(x_vec, f_plt , "black") # one function to plot
plt.plot(x_vec, f_eps_plt , "blue") # one function to plot
plt.show()