Module org.apache.sis.util
Package org.apache.sis.setup

Enum Class GeometryLibrary

Object
Enum<GeometryLibrary>
GeometryLibrary
All Implemented Interfaces:
Serializable, Comparable<Geometry­Library>, Constable
public enum GeometryLibrary extends Enum<GeometryLibrary>
Some libraries providing geometric objects or topological operations. Apache SIS uses its own implementation for the most basic objects like direct positions and envelopes, and can delegate to one of the enumerated libraries for more complex geometries. All those libraries are optional.
Since:
0.8
See Also:

  • Enum Constant Details

    • JAVA2D

      public static final GeometryLibrary JAVA2D
      The Java 2D Graphics and Imaging library. This library does not provide as many topological operations than other libraries, but is available on most standard Java environments and constitute a reliable fallback when no other library is available.
      Implementation classes
      Geometry type Class name
      GeometryType.POINT java.awt.geom.Point2D
      GeometryType.LINEAR java.awt.Shape
      GeometryType.AREAL java.awt.Shape
      Note that contrarily to JTS and ESRI libraries, a point does not extend any root geometry class in Java2D.

    • ESRI

      public static final GeometryLibrary ESRI
      The ESRI geometry API library. This library can be used for spatial vector data processing. It is used in ESRI GIS Tools for Hadoop and has an Android port. The library is available under Apache 2 license.
      Implementation classes
      Geometry type Class name
      Root geometry class com.esri.core.geometry.Geometry
      GeometryType.POINT com.esri.core.geometry.Point
      GeometryType.LINEAR com.esri.core.geometry.Polyline
      GeometryType.AREAL com.esri.core.geometry.Polygon
      See Also:

    • JTS

      public static final GeometryLibrary JTS
      The Java Topology Suite (JTS) library. This open source library provides an object model for Euclidean planar geometry together with a set of fundamental geometric functions. The library is licensed under Eclipse Distribution License.
      Implementation classes
      Geometry type Class name
      Root geometry class org.locationtech.jts.geom.Geometry
      GeometryType.POINT org.locationtech.jts.geom.Point
      GeometryType.LINEAR org.locationtech.jts.geom.LineString
      GeometryType.AREAL org.locationtech.jts.geom.Polygon
      Since:
      1.0
      See Also:

    • GEOAPI

      public static final GeometryLibrary GEOAPI
      The GeoAPI geometry interfaces. Since GeoAPI interfaces are implementation neutral, the actual implementation is currently unspecified (a future Apache SIS version may provide some control on that).
      Implementation classes
      Geometry type Class name
      Root geometry class Geometry

      Limitations

      The geometry interfaces are not well developed in GeoAPI 3.0. In current Apache SIS implementation, only the most basic methods are implemented and other methods throws Unsupported­Operation­Exception. Future GeoAPI version and Apache SIS implementation should provide more extensive support.
      Since:
      1.4

  • Method Details

    • values

      public static GeometryLibrary[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static GeometryLibrary valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      Illegal­Argument­Exception - if this enum class has no constant with the specified name
      Null­Pointer­Exception - if the argument is null