Class CoordinateSequenceComparator

java.lang.Object
org.locationtech.jts.geom.CoordinateSequenceComparator
All Implemented Interfaces:
Comparator

public class CoordinateSequenceComparator extends Object implements Comparator
Compares two CoordinateSequences. For sequences of the same dimension, the ordering is lexicographic. Otherwise, lower dimensions are sorted before higher. The dimensions compared can be limited; if this is done ordinate dimensions above the limit will not be compared.

If different behaviour is required for comparing size, dimension, or coordinate values, any or all methods can be overridden.

  • Constructor Details

    • CoordinateSequenceComparator

      public CoordinateSequenceComparator()
      Creates a comparator which will test all dimensions.
    • CoordinateSequenceComparator

      public CoordinateSequenceComparator(int dimensionLimit)
      Creates a comparator which will test only the specified number of dimensions.
      Parameters:
      dimensionLimit - the number of dimensions to test
  • Method Details

    • compare

      public static int compare(double a, double b)
      Compare two doubles, allowing for NaN values. NaN is treated as being less than any valid number.
      Parameters:
      a - a double
      b - a double
      Returns:
      -1, 0, or 1 depending on whether a is less than, equal to or greater than b
    • compare

      public int compare(Object o1, Object o2)
      Compares two CoordinateSequences for relative order.
      Specified by:
      compare in interface Comparator
      Parameters:
      o1 - a CoordinateSequence
      o2 - a CoordinateSequence
      Returns:
      -1, 0, or 1 depending on whether o1 is less than, equal to, or greater than o2