def numpy2DArrayToStdVectorStdVectorDouble(array):
"""
Convert a 2D numpy array to a std::vector<std::vector<double> > representation.
:param array: The array to convert.
:returns: A corresponding std::vector<std::vector<double> > object.
"""
# Get the shape of the array.
shape = numpy.shape(array)
nI = shape[0]
nJ = shape[1]
# Setup the c++ object.
cpp_2D_vector = Backend.StdVectorStdVectorDouble(nI)
# Copy the values over.
for i in range(nI):
cpp_vector = Backend.StdVectorDouble(nJ)
for j in range(nJ):
cpp_vector[j] = array[i][j]
cpp_2D_vector[i] = cpp_vector
# Done.
return cpp_2D_vector
