Module org.apache.jena.geosparql

Package org.apache.jena.geosparql.spatial.index.v2

Class GeometryGenerator

java.lang.Object

org.apache.jena.geosparql.spatial.index.v2.GeometryGenerator

public class GeometryGenerator
extends Object

Class to generate various geometry types for testing. The generated coordinate sequences are based on circles. This class is also used in jena-benchmarks.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	GeometryGenerator.GeometryType

Constructor Summary

Constructors

Constructor	Description
GeometryGenerator()

Method Summary

Modifier and Type	Method	Description
static org.locationtech.jts.geom.Coordinate[]	createCircle(org.locationtech.jts.geom.GeometryFactory geometryFactory, org.locationtech.jts.geom.Coordinate center, double radius, int numPoints, boolean closed)
static Map<GeometryGenerator.GeometryType,Number>	createConfig(long amount)	Create a map that maps each geometry type to the specified amount.
static org.locationtech.jts.geom.Geometry	createGeom(GeometryGenerator.GeometryType type, org.locationtech.jts.geom.GeometryFactory f, org.locationtech.jts.geom.Coordinate center, double radius, int numPoints)
static long	generateGraph(org.apache.jena.graph.Graph graph, org.locationtech.jts.geom.Envelope envelope, Map<GeometryGenerator.GeometryType,Number> config)	Generate GeoSPARQL data with various geometry types in the given graph.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GeometryGenerator

public GeometryGenerator()

Method Details

createCircle

public static org.locationtech.jts.geom.Coordinate[] createCircle(org.locationtech.jts.geom.GeometryFactory geometryFactory,
 org.locationtech.jts.geom.Coordinate center,
 double radius,
 int numPoints,
 boolean closed)

createGeom

public static org.locationtech.jts.geom.Geometry createGeom(GeometryGenerator.GeometryType type,
 org.locationtech.jts.geom.GeometryFactory f,
 org.locationtech.jts.geom.Coordinate center,
 double radius,
 int numPoints)

createConfig

public static Map<GeometryGenerator.GeometryType,Number> createConfig(long amount)

Create a map that maps each geometry type to the specified amount. For use with generateGraph(Graph, Envelope, Map).

generateGraph

public static long generateGraph(org.apache.jena.graph.Graph graph,
 org.locationtech.jts.geom.Envelope envelope,
 Map<GeometryGenerator.GeometryType,Number> config)

Generate GeoSPARQL data with various geometry types in the given graph.

Parameters:

graph - The target graph.

envelope - The allowed area for the positions of generated geometries (the shape may overlap).

config - Map of geometry type to the number of geometries to generate.

Returns:

The number of generated geometries added to the graph.