Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package locationtech
    Definition Classes
    org
  • package jts
    Definition Classes
    locationtech
  • package algorithm
    Definition Classes
    jts
  • package distance
    Definition Classes
    algorithm
  • object DiscreteHausdorffDistance

    An algorithm for computing a distance metric which is an approximation to the Hausdorff Distance based on a discretization of the input {link Geometry}.

    An algorithm for computing a distance metric which is an approximation to the Hausdorff Distance based on a discretization of the input {link Geometry}. The algorithm computes the Hausdorff distance restricted to discrete points for one of the geometries. The points can be either the vertices of the geometries (the default), or the geometries with line segments densified by a given fraction. Also determines two points of the Geometries which are separated by the computed distance.

    This algorithm is an approximation to the standard Hausdorff distance. Specifically, 

    for all geometries a, b:    DHD(a, b) <= HD(a, b)
    The approximation can be made as close as needed by densifying the input geometries. In the limit, this value will approach the true Hausdorff distance: 
    DHD(A, B, densifyFactor) -> HD(A, B) as densifyFactor -> 0.0
    The default approximation is exact or close enough for a large subset of useful cases. Examples of these are:

    • computing distance between Linestrings that are roughly parallel to each other, and roughly equal in length. This occurs in matching linear networks.
    • Testing similarity of geometries.

    An example where the default approximation is not close is: 

    A = LINESTRING (0 0, 100 0, 10 100, 10 100)
B = LINESTRING (0 100, 0 10, 80 10)

DHD(A, B) = 22.360679774997898
HD(A, B) ~= 47.8

    Definition Classes
    distance
  • MaxDensifiedByFractionDistanceFilter
  • MaxPointDistanceFilter

class MaxPointDistanceFilter extends CoordinateFilter

Linear Supertypes
CoordinateFilter, AnyRef, Any
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Inherited
  1. MaxPointDistanceFilter
  2. CoordinateFilter
  3. AnyRef
  4. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new MaxPointDistanceFilter(geom: Geometry)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def filter(pt: Coordinate): Unit

    Performs an operation with the provided coord.

    Performs an operation with the provided coord. Note that there is no guarantee that the input coordinate is the actual object stored in the source geometry, so changes to the coordinate object may not be persistent.

    Definition Classes
    MaxPointDistanceFilter → CoordinateFilter
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  10. var geom: Geometry
  11. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def getMaxPointDistance: PointPairDistance
  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  17. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  19. def toString(): String
    Definition Classes
    AnyRef → Any
  20. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from CoordinateFilter

Inherited from AnyRef

Inherited from Any

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