pysted.utils.stack

pysted.utils.stack(datamap, data)

Compute a new frame consisting in a replication of the given data centered at every positions and multiplied by the factors given in the datamap.

Example:

>>> datamap = numpy.array([[2, 0, 0, 0],
                           [0, 0, 0, 0],
                           [0, 0, 0, 0],
                           [0, 0, 0, 0]])
>>> data = numpy.array([[1, 2, 1],
                        [2, 3, 2],
                        [1, 2, 1]])
>>> utils.stack(datamap, data)
numpy.array([[6, 4, 0, 0],
             [4, 2, 0, 0],
             [0, 0, 0, 0],
             [0, 0, 0, 0]])

Parameters:

datamap – A 2D array indicating how many data are positioned in every
data – A 2D array containing the data to replicate.

Returns:

A 2D array shaped like datamap.