/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.generator;
import com.vividsolutions.jts.geom.*;
/**
* 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;
}
}