/*
* 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 test.jts.perf.geom.prep;
import java.util.ArrayList;
import java.util.List;
import org.locationtech.jts.geom.Coordinate;
import org.locationtech.jts.geom.Envelope;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.util.SineStarFactory;
import org.locationtech.jts.util.GeometricShapeFactory;
public class TestDataBuilder
{
private GeometryFactory geomFact = new GeometryFactory();
private Coordinate origin = new Coordinate(0, 0);
private double size = 100.0;
private int testDim = 1;
public TestDataBuilder()
{
}
public TestDataBuilder(GeometryFactory geomFact)
{
this.geomFact = geomFact;
}
public void setExtent(Coordinate origin, double size)
{
this.origin = origin;
this.size = size;
}
public void setTestDimension(int testDim)
{
this.testDim = testDim;
}
public Geometry createCircle(int nPts) {
GeometricShapeFactory gsf = new GeometricShapeFactory();
gsf.setCentre(origin);
gsf.setSize(size);
gsf.setNumPoints(nPts);
Geometry circle = gsf.createCircle();
// Polygon gRect = gsf.createRectangle();
// Geometry g = gRect.getExteriorRing();
return circle;
}
public Geometry createSineStar(int nPts) {
SineStarFactory gsf = new SineStarFactory();
gsf.setCentre(origin);
gsf.setSize(size);
gsf.setNumPoints(nPts);
gsf.setArmLengthRatio(0.1);
gsf.setNumArms(20);
Geometry poly = gsf.createSineStar();
return poly;
}
public List createTestGeoms(Envelope env, int nItems, double size, int nPts)
{
int nCells = (int) Math.sqrt(nItems);
List geoms = new ArrayList();
double width = env.getWidth();
double xInc = width / nCells;
double yInc = width / nCells;
for (int i = 0; i < nCells; i++) {
for (int j = 0; j < nCells; j++) {
Coordinate base = new Coordinate(
env.getMinX() + i * xInc,
env.getMinY() + j * yInc);
Geometry line = createLine(base, size, nPts);
geoms.add(line);
}
}
return geoms;
}
Geometry createLine(Coordinate base, double size, int nPts)
{
GeometricShapeFactory gsf = new GeometricShapeFactory();
gsf.setCentre(base);
gsf.setSize(size);
gsf.setNumPoints(nPts);
Geometry circle = gsf.createCircle();
// System.out.println(circle);
return circle.getBoundary();
}
}