Package org.apache.sis.setup

Enum 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:

• Option­Key.GEOMETRY_LIBRARY
• Feature­Type­Builder.add­Attribute(Geometry­Type)

Defined in the sis-utility module

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.Enum­Desc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ESRI	The ESRI geometry API library.
JAVA2D	The Java 2D Graphics and Imaging library.
JTS	The Java Topology Suite (JTS) library.

Method Summary

Modifier and Type	Method	Description
static Geometry­Library	value­Of(String name)	Returns the enum constant of this type with the specified name.
static Geometry­Library[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

clone, compare­To, describe­Constable, equals, finalize, get­Declaring­Class, hash­Code, name, ordinal, to­String, value­Of

Methods inherited from class Object

get­Class, notify, notify­All, wait, wait, wait

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.

See Also:

• Java2D home page

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:

• API wiki page

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:

• JTS home page

Method Details

values

public static GeometryLibrary[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static GeometryLibrary valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

Null­Pointer­Exception - if the argument is null