Geometry Boost List: [geometry] rtree query and std::back_inserter

Subject: [geometry] rtree query and std::back_inserter
From: Hussein Almashouq (hussein.almashouq_at_[hidden])
Date: 2015-06-15 09:05:22

Hi to all I'm using the rtree*  to load  1M > data points . Then  I use the
rtree query to different intersection query  like

found +=rtree.query(bgi::intersects(qbox), std::back_inserter(result));

currently I'm interested in getting the count of results rather than
inserting into the result vector

I have to two question

1. is possible to skip std::back_inserter step and do a query that finds
the count only.
2. How can improve the performance of the  std::back_inserter methods as my
results are N^2 where N > 1M usually . ( check this post
https://pkisensee.wordpress.com/2011/06/02/efficient-stl-insertion-tip-of-the-month/
)

Best Regards

Hussein

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