java.lang.Object
org.locationtech.jts.index.quadtree.Key

public class Key extends Object
A Key is a unique identifier for a node in a quadtree. It contains a lower-left point and a level number. The level number is the power of two for the size of the node envelope
Version:
1.7
  • Field Details

  • Constructor Details

  • Method Details

    • computeQuadLevel

      public static int computeQuadLevel(Envelope env)
    • getPoint

      public Coordinate getPoint()
    • getLevel

      public int getLevel()
    • getEnvelope

      public Envelope getEnvelope()
    • getCentre

      public Coordinate getCentre()
    • computeKey

      public void computeKey(Envelope itemEnv)
      return a square envelope containing the argument envelope, whose extent is a power of two and which is based at a power of 2
    • computeKey

      private void computeKey(int level, Envelope itemEnv)