The matrix type Matrix4x4 is mapped to python to handle matrix operations.

The integrated conversion can map the C++ Matrix4x4 type to and from a tuple, a list or a numpy array. The preferred choice is the numpy array. Tuple and list have to contain 16 elements. A numpy array has to have a dimension of 2, with 4x4 elements. All data is assumed to be given column major. Therefore the first for elements define the first column and so on.

Creating a matrix in python is the done like in the following example:

import numpy as np
matr = np.array( [[1.0,0.0,0.0,0.0],[0.0,1.0,0.0,0.0],[0.0,0.0,1.0,0.0],[0.0,0.0,0.0,1.0]])

The conversion from C++ to python will always create a numpy array on the python side.