RTree only supports 2 dimensions

[rscarberry-wa]

Hi. My name is Randall Scarberry and I work for a company in Albuquerque, NM called Stellar Science. I was investigating the use of R-trees for one of our applications and came across your version. Since our project required a 3-D implementation, however, I modified the code to support an arbitrary number of dimensions greater than or equal to 2.

The 3-D version works well, so I wanted to contribute back our changes in keeping with open source practice. My version deviates a great deal from the original, so a pull request wouldn't be the way to go. For example, we use fastutil for collections of primitives instead of trove. If you contact me, I can send you a zip file containing the modified code.

My email address is [email protected]

Thanks!