plasmodic/ecto_pcl — pull request #34 by v4hn (2014-10-10 17:11:34+00:00)
Title: Add PassThrough for index extraction

This module behaves similarly to PassThrough with two changes:

- It also accepts an optional set of input indices of the input cloud
It's probably not good to add this to PassThrough as well, because it breaks
whatever[:] >> passthrough[:]

- It produces PointIndices of the original cloud instead of a new cloud