# Uses of Interface
org.apache.lucene.util.bkd.PointReader

Packages that use PointReader
Package
Description
org.apache.lucene.util.bkd
Block KD-tree, implementing the generic spatial data structure described in this paper.

- ## Uses of PointReader in org.apache.lucene.util.bkd

  Classes in org.apache.lucene.util.bkd that implement PointReader
  Modifier and Type
  Class
  Description
  `final class`
  `HeapPointReader`
  Utility class to read buffered points from in-heap arrays.
  `final class`
  `OfflinePointReader`
  Reads points from disk in a fixed-with format, previously written with `OfflinePointWriter`.
  Methods in org.apache.lucene.util.bkd that return PointReader
  Modifier and Type
  Method
  Description
  `PointReader`
  HeapPointWriter.`getReader(long start, long length)`
  `PointReader`
  OfflinePointWriter.`getReader(long start, long length)`
  `PointReader`
  PointWriter.`getReader(long startPoint, long length)`
  Returns a `PointReader` iterator to step through all previously added points