def idd_reconint(idx, proj):
return _id.idd_reconint(idx, proj)<EOL>
Reconstruct interpolation matrix from real ID.

:param idx:
    Column index array.
:type idx: :class:`numpy.ndarray`
:param proj:
    Interpolation coefficients.
:type proj: :class:`numpy.ndarray`

:return:
    Interpolation matrix.
:rtype: :class:`numpy.ndarray`