#include <vtkConcatenateArray.h>
Given two input arrays of arbitrary dimension, creates a single, larger output array that contains both. The input arrays will be adjacent to each other within the combined output array.
The adjacent dimension can be specified so that e.g: you can control whether two matrices are combined row-wise or column-wise.
Both arrays must have the same number of dimensions. The array extents along the adjacent dimension may be different, but all other dimensions must have identical extents.