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about Geospatial Index(2d or 2dsphere)

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    • Type: Icon: Question Question
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: 2.3.2
    • Component/s: Geo
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      usually,quardtree and rtree are the common spatail indexes using in GIS.
      so what's the difference between quardtree/rtree and 2d/2dsphere,
      and what's the difference between 2d and 2dsphere?

            Assignee:
            hari.khalsa@10gen.com hari.khalsa@10gen.com
            Reporter:
            charmdx@126.com charm dx
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