/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2004-2008, Open Source Geospatial Foundation (OSGeo)
*
* 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;
* version 2.1 of the License.
*
* 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.
*/
package org.geotools.geometry.iso.primitive;
import java.util.ArrayList;
import junit.framework.TestCase;
import org.geotools.geometry.GeometryBuilder;
import org.geotools.geometry.iso.coordinate.GeometryFactoryImpl;
import org.geotools.geometry.iso.coordinate.PositionImpl;
import org.geotools.geometry.iso.primitive.CurveImpl;
import org.geotools.geometry.iso.primitive.PrimitiveFactoryImpl;
import org.geotools.geometry.iso.primitive.RingImpl;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.opengis.geometry.coordinate.Position;
import org.opengis.geometry.primitive.CurveSegment;
import org.opengis.geometry.primitive.OrientableCurve;
import org.opengis.geometry.primitive.Ring;
/**
* @author sanjay
*
*
*
*
*
* @source $URL$
*/
public class RingTest extends TestCase {
public void testMain() {
GeometryBuilder builder = new GeometryBuilder(DefaultGeographicCRS.WGS84);
//this._testTriangle1(tGeomFactory);
this._testRing1(builder);
}
private void _testRing1(GeometryBuilder builder) {
GeometryFactoryImpl tCoordFactory = (GeometryFactoryImpl) builder.getGeometryFactory();
PrimitiveFactoryImpl tPrimFactory = (PrimitiveFactoryImpl) builder.getPrimitiveFactory();
/* Defining Positions for LineStrings */
ArrayList<Position> line1 = new ArrayList<Position>();
line1.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{50, 20})));
line1.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{30, 30})));
line1.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{20, 50})));
line1.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{20, 70})));
ArrayList<Position> line2 = new ArrayList<Position>();
line2.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{20, 70})));
line2.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{40, 80})));
line2.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{70, 80})));
ArrayList<Position> line3 = new ArrayList<Position>();
line3.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{70, 80})));
line3.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{90, 70})));
line3.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{100, 60})));
line3.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{100, 40})));
ArrayList<Position> line4 = new ArrayList<Position>();
line4.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{100, 40})));
line4.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{80, 30})));
line4.add(new PositionImpl(tCoordFactory.createDirectPosition(new double[]{50, 20})));
/* Setting up Array of these LineStrings */
ArrayList<CurveSegment> tLineList1 = new ArrayList<CurveSegment>();
tLineList1.add(tCoordFactory.createLineString(line1));
tLineList1.add(tCoordFactory.createLineString(line2));
ArrayList<CurveSegment> tLineList2 = new ArrayList<CurveSegment>();
tLineList2.add(tCoordFactory.createLineString(line3));
tLineList2.add(tCoordFactory.createLineString(line4));
/* Build Curve */
CurveImpl curve1 = tPrimFactory.createCurve(tLineList1);
CurveImpl curve2 = tPrimFactory.createCurve(tLineList2);
/* Build Ring */
ArrayList<OrientableCurve> curveList = new ArrayList<OrientableCurve>();
curveList.add(curve1);
curveList.add(curve2);
Ring ring1 = tPrimFactory.createRing(curveList);
//System.out.println(ring1);
//System.out.println(ring1.getEnvelope());
// Rings should be simple
assertTrue(ring1.isSimple());
// Rings should be cyclic (=closed)
assertTrue(ring1.isCycle());
// ***** getRepresentativePoint()
double[] dp = ring1.getRepresentativePoint().getCoordinate();
assertTrue(dp[0] == 50);
assertTrue(dp[1] == 20);
assertTrue(ring1.isCycle() == true);
//PaintGMObject.paint(curve1);
}
}