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Update atlas.py #34

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7 changes: 4 additions & 3 deletions neuroglancer/atlas.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,12 @@
def align_point_sets(src, dst, with_scaling=True):
"""
Analytically computes a transformation that minimizes the squared error between source and destination.
The transformation is restricted to rigid + uniform scaling.
------------------------------------------------------
src is the dictionary of the brain we want to align
dst is the dictionary of the atlas structures
src is a numpy array of shape (struct_num X 3) where rows correspond to structures and columns to xyz.
dst is a numpy array of same shape as src. THe rows should correspond to the same sturcures as src.
Defaults to scaling true, which means the transformation is rigid and a uniform scale.
returns the linear transformation r, and the translation vector t
returns the linear transformation r (3x3) , and the translation vector t (3,1) as numpy arrays.
"""
assert src.shape == dst.shape
assert len(src.shape) == 2
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