/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jts.generator;
import org.locationtech.jts.geom.Envelope;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.GeometryFactory;
/**
* This class illustrates the basic functionality and configuration options for generating spatial data.
*
* @author David Zwiers, Vivid Solutions.
*/
public abstract class GeometryGenerator {
protected int dimensions = 2;
protected GeometryFactory geometryFactory; // includes srid
protected Envelope boundingBox;
/**
* @return A Geometry which uses some or all of the Bounding Box specified.
*/
public abstract Geometry create();
/**
* @see GridGenerator
* @return A new GridGenerator
*/
public static GridGenerator createGridGenerator(){
return new GridGenerator();
}
/**
* @see PointGenerator
* @return A new PointGenerator
*/
public static PointGenerator createPointGenerator(){
return new PointGenerator();
}
/**
* @see LineStringGenerator
* @return A new LineStringGenerator
*/
public static LineStringGenerator createLineStringGenerator(){
LineStringGenerator lsg = new LineStringGenerator();
lsg.setGenerationAlgorithm(LineStringGenerator.ARC);
lsg.setNumberPoints(10);
return lsg;
}
/**
* @see PolygonGenerator
* @return A new PolygonGenerator
*/
public static PolygonGenerator createPolygonGenerator(){
PolygonGenerator pg = new PolygonGenerator();
pg.setGenerationAlgorithm(PolygonGenerator.ARC);
pg.setNumberPoints(10);
pg.setNumberHoles(8);
return pg;
}
/**
* @see PointGenerator
* @see MultiGenerator
* @return A new MultiGenerator
*/
public static MultiGenerator createMultiPointGenerator(){
MultiGenerator mg = new MultiGenerator(createPointGenerator());
mg.setNumberGeometries(4);
return mg;
}
/**
* @see LineStringGenerator
* @see MultiGenerator
* @return A new PointGenerator
*/
public static MultiGenerator createMultiLineStringGenerator(){
MultiGenerator mg = new MultiGenerator(createLineStringGenerator());
mg.setNumberGeometries(4);
return mg;
}
/**
* @see PolygonGenerator
* @see MultiGenerator
* @return A new PointGenerator
*/
public static MultiGenerator createMultiPolygonGenerator(){
MultiGenerator mg = new MultiGenerator(createPolygonGenerator());
mg.setNumberGeometries(4);
return mg;
}
/**
* @return Returns the boundingBox.
*/
public Envelope getBoundingBox() {
return boundingBox;
}
/**
* @param boundingBox The boundingBox to set.
*/
public void setBoundingBox(Envelope boundingBox) {
this.boundingBox = boundingBox;
}
/**
* @return Returns the dimensions.
*/
public int getDimensions() {
return dimensions;
}
/**
* @param dimensions The dimensions to set.
*/
public void setDimensions(int dimensions) {
this.dimensions = dimensions;
throw new RuntimeException("Dimensions other than 2 are not yet supported");
}
/**
* @return Returns the geometryFactory.
*/
public GeometryFactory getGeometryFactory() {
return geometryFactory;
}
/**
* @param geometryFactory The geometryFactory to set.
*/
public void setGeometryFactory(GeometryFactory geometryFactory) {
this.geometryFactory = geometryFactory;
}
}