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flame.py
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flame.py
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#hpart = 'horizontal partition', vpart = 'vertical partition'
from numpy import hstack, vstack
def merge_2x2(TL, TR, BL, BR, A):
if TL.shape[0] > 0 and TL.shape[1] > 0:
for i in range(TL.shape[0]):
for j in range(TL.shape[1]):
A[i,j] = TL[i,j];
if TR.shape[0] > 0 and TR.shape[1]> 0:
for i in range(TR.shape[0]):
for j in range(TR.shape[1]):
A[i, TL.shape[1] + j] = TR[i,j];
if BL.shape[0] > 0 and BL.shape[1]> 0:
for i in range(BL.shape[0]):
for j in range(BL.shape[1]):
A[i + TL.shape[0], j ] = BL[i,j];
if BR.shape[0] > 0 and BR.shape[1]> 0:
for i in range(BR.shape[0]):
for j in range(BR.shape[1]):
A[i+TL.shape[0], j+TL.shape[1]] = BR[i,j];
def merge_2x1(T, B, A):
if T.shape[0] > 0 and T.shape[1] > 0:
for i in range(T.shape[0]):
for j in range(T.shape[1]):
A[i,j] = T[i,j];
if B.shape[0] > 0 and B.shape[1]> 0:
for i in range(B.shape[0]):
for j in range(B.shape[1]):
A[i+T.shape[0], j] = B[i,j];
def merge_1x2(L, R, A):
if L.shape[0] > 0 and L.shape[1] > 0:
for i in range(L.shape[0]):
for j in range(L.shape[1]):
A[i,j] = L[i,j];
if R.shape[0] > 0 and R.shape[1]> 0:
for i in range(R.shape[0]):
for j in range(R.shape[1]):
A[i, j+L.shape[1]] = R[i,j];
def cont_with_1x3_to_1x2(A0, A1, A2, side='LEFT'):
if side == 'LEFT':
return hstack((A0, A1)), A2
else:
return A0, hstack((A1, A2))
def cont_with_3x1_to_2x1(A0, A1, A2, side='TOP'):
if side == 'TOP':
return vstack((A0, A1)), A2
else:
return A0, vstack((A1, A2))
def cont_with_3x3_to_2x2(A00, A01, A02, \
A10, A11, A12, \
A20, A21, A22, quad='TL'):
if quad == 'TL':
TL = vstack((hstack((A00, A01)), \
hstack((A10, A11))))
TR = vstack((A02, \
A12))
BL = hstack((A20, A21))
BR = A22
elif quad == 'TR':
TL = vstack((A00, \
A10))
TR = vstack((hstack((A01, A02)), \
hstack((A11, A12))))
BL = A20
BR = hstack((A21, A22))
elif quad == 'BL':
TL = hstack((A00, A01))
TR = A02
BL = vstack((hstack((A10, A11)), \
hstack((A20, A21))))
BR = vstack((A12, \
A22))
elif quad == 'BR':
TL = A00
TR = hstack((A01, A02))
BL = vstack((A10, \
A20))
BR = vstack((hstack((A11, A12)), \
hstack((A21, A22))))
return TL, TR, \
BL, BR
def part_1x2(A, size=0, side='LEFT'):
if size < 0:
raise IndexError('size < 0')
elif size > A.shape[1]:
raise IndexError('size > col dimension')
elif side not in ('LEFT', 'RIGHT'):
raise ValueError('side must be LEFT or RIGHT')
vpart = size if side == 'LEFT' else A.shape[1] - size
AL, AR = A[:, :vpart], A[:, vpart:]
return AL, AR
def part_2x1(A, size=0, side='TOP'):
if size < 0:
raise IndexError('size < 0')
elif size > A.shape[0]:
raise IndexError('size > row dimension')
elif side not in ('TOP', 'BOTTOM'):
raise ValueError('side must be TOP or BOTTOM')
hpart = size if side == 'TOP' else A.shape[0] - size
AT, \
AB = A[:hpart, :], \
A[hpart:, :]
return AT, \
AB
def part_2x2(A, m, n, quad):
if quad not in ('TL', 'TR', 'BL', 'BR'):
raise ValueError('quadrant must be TL, TR, BL, or BR')
hpart = m if quad in ('TL', 'TR') else A.shape[0] - m
vpart = n if quad in ('TL', 'BL') else A.shape[1] - n
TL, TR = A[:hpart, :vpart], A[:hpart, vpart:]
BL, BR = A[hpart:, :vpart], A[hpart:, vpart:]
return TL, TR, BL, BR
def repart_1x2_to_1x3(AL, AR, n=1, side='RIGHT'):
if side == 'RIGHT':
vpart = n
A0 = AL
A1 = AR[:, :vpart]
A2 = AR[:, vpart:]
else:
vpart = AL.shape[1] - n
A0 = AL[:, :vpart]
A1 = AL[:, vpart:]
A2 = AR
return A0, A1, A2
def repart_2x1_to_3x1(AT, \
AB, m=1, side='BOTTOM'):
top_end = AT.shape[0] if side == 'BOTTOM' else AT.shape[0] - m
bottom_start = 0 if side == 'TOP' else m
A0 = AT[:top_end, :]
A2 = AB[bottom_start:, :]
if side == 'BOTTOM':
A1 = AB[:bottom_start, :]
else:
A1 = AT[top_end:, :]
return A0, A1, A2
def repart_2x2_to_3x3(ATL, ATR, \
ABL, ABR, m=1, n=1, quad='BR'):
hpart = ATL.shape[0] - m if quad in ('TL', 'TR') else m
vpart = ATL.shape[1] - n if quad in ('TL', 'BL') else n
if quad == 'TL':
A00, A01, A02 = ATL[:hpart, :vpart], ATL[:hpart, vpart:], ATR[:hpart, :]
A10, A11, A12 = ATL[hpart:, :vpart], ATL[hpart:, vpart:], ATR[hpart:, :]
A20, A21, A22 = ABL[:, :vpart], ABL[:, vpart:], ABR[:, :]
elif quad == 'TR':
A00, A01, A02 = ATL[:hpart, :], ATR[:hpart, :vpart], ATR[:hpart, vpart:]
A10, A11, A12 = ATL[hpart:, :], ATR[hpart:, :vpart], ATR[hpart:, vpart:]
A20, A21, A22 = ABL[:, :], ABR[:, :vpart], ABR[:, vpart:]
elif quad == 'BL':
A00, A01, A02 = ATL[:, :vpart], ATL[:, vpart:], ATR[:, :]
A10, A11, A12 = ABL[:hpart, :vpart], ABL[:hpart, vpart:], ABR[:hpart, :]
A20, A21, A22 = ABL[hpart:, :vpart], ABL[hpart:, vpart:], ABR[hpart:, :]
elif quad == 'BR':
A00, A01, A02 = ATL[:, :], ATR[:, :vpart], ATR[:, vpart:]
A10, A11, A12 = ABL[:hpart, :], ABR[:hpart, :vpart], ABR[:hpart, vpart:]
A20, A21, A22 = ABL[hpart:, :], ABR[hpart:, :vpart], ABR[hpart:, vpart:]
return A00, A01, A02, \
A10, A11, A12, \
A20, A21, A22