Github user danielblazevski commented on the pull request:
https://github.com/apache/flink/pull/1220#issuecomment-215384494
@chiwanpark Thanks for the comments. I made all the changes except making
`makeChildren` private since that is in the `Node` class and is called in the
`Quadtree` class outside of the `Node` class. Since it's still public, I added
Scaladocs as per your comment.
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