I'd like to send an array containing arrays of 2-element float arrays to a
foreign function, as the following struct:
class _FFIArray(Structure):
_fields_ = [("data", c_void_p),
("len", c_size_t)]
@classmethod
def from_param(cls, seq):
""" Allow implicit conversions """
return seq if isinstance(seq, cls) else cls(seq)
def __init__(self, seq):
self.data = cast(
np.array(seq, dtype=np.float64).ctypes.data_as(POINTER(c_double)),
c_void_p
)
self.len = len(seq)
This works for data such as [[1.0, 2.0], [3.0, 4.0], [5.0, 6.0], … ], (.shape
is n, 2 where n is an arbitrary length) but I'd like it to work for data such as
[
[[1.0, 2.0], [3.0, 4.0], [5.0, 6.0], … ],
[[7.0, 8.0], [9.0, 10.0], [11.0, 12.0], … ],
…
]
which has .shape p, q, 2 where p and q are of arbitrary length.
Is this possible?
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