PicoCompositeSurfaceTest.java example

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geotools-old-master
/*
 *    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.complex;

import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;

import org.geotools.geometry.iso.PositionFactoryImpl;
import org.geotools.geometry.iso.PrecisionModel;
import org.geotools.geometry.iso.aggregate.AggregateFactoryImpl;
import org.geotools.geometry.iso.coordinate.GeometryFactoryImpl;
import org.geotools.geometry.iso.io.CollectionFactoryMemoryImpl;
import org.geotools.geometry.iso.primitive.PrimitiveFactoryImpl;
import org.geotools.geometry.iso.util.elem2D.Geo2DFactory;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.opengis.geometry.DirectPosition;
import org.opengis.geometry.Precision;
import org.opengis.geometry.complex.ComplexFactory;
import org.opengis.geometry.complex.CompositeSurface;
import org.opengis.geometry.coordinate.GeometryFactory;
import org.opengis.geometry.primitive.OrientableSurface;
import org.opengis.geometry.primitive.PrimitiveFactory;
import org.opengis.geometry.primitive.Surface;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.picocontainer.PicoContainer;
import org.picocontainer.defaults.DefaultPicoContainer;

public class PicoCompositeSurfaceTest extends TestCase {

	public void testMain() {
		
		PicoContainer c = container( DefaultGeographicCRS.WGS84 );
		
		this._testCompositeSurface(c);
		
	}
	
	/**
	 * Creates a pico container that knows about all the geom factories
	 * @param crs
	 * @return container
	 */
	protected PicoContainer container( CoordinateReferenceSystem crs ){
		
		DefaultPicoContainer container = new DefaultPicoContainer(); // parent
		
		// Teach Container about Factory Implementations we want to use
		container.registerComponentImplementation(PositionFactoryImpl.class);
		container.registerComponentImplementation(AggregateFactoryImpl.class);
		container.registerComponentImplementation(ComplexFactoryImpl.class);
		container.registerComponentImplementation(GeometryFactoryImpl.class);
		container.registerComponentImplementation(CollectionFactoryMemoryImpl.class);
		container.registerComponentImplementation(PrimitiveFactoryImpl.class);
		container.registerComponentImplementation(Geo2DFactory.class);
		
		// Teach Container about other dependacies needed
		container.registerComponentInstance( crs );
		Precision pr = new PrecisionModel();
		container.registerComponentInstance( pr );
		
		return container;		
	}
	
	private void _testCompositeSurface(PicoContainer c) {
		
		ComplexFactoryImpl complf = (ComplexFactoryImpl) c.getComponentInstanceOfType(ComplexFactory.class);
		PrimitiveFactoryImpl pf = (PrimitiveFactoryImpl) c.getComponentInstanceOfType(PrimitiveFactory.class);
		GeometryFactoryImpl geomFact = (GeometryFactoryImpl) c.getComponentInstanceOfType(GeometryFactory.class);
		
		List<DirectPosition> directPositionList = new ArrayList<DirectPosition>();
		directPositionList.add(geomFact.createDirectPosition(new double[] {20, 10}));
		directPositionList.add(geomFact.createDirectPosition(new double[] {40, 10}));
		directPositionList.add(geomFact.createDirectPosition(new double[] {50, 40}));
		directPositionList.add(geomFact.createDirectPosition(new double[] {30, 50}));
		directPositionList.add(geomFact.createDirectPosition(new double[] {10, 30}));
		directPositionList.add(geomFact.createDirectPosition(new double[] {20, 10}));

		
		// test createCompositeSurface()
		Surface s1 = pf.createSurfaceByDirectPositions(directPositionList);
		List<OrientableSurface> surfaceList = new ArrayList<OrientableSurface>();
		surfaceList.add(s1);
		CompositeSurface comps1 = complf.createCompositeSurface(surfaceList);
		
		//System.out.println(comps1.getEnvelope());
		double[] dp = comps1.getEnvelope().getLowerCorner().getCoordinate();
		assertTrue(dp[0] == 10);
		assertTrue(dp[1] == 10);
		dp = comps1.getEnvelope().getUpperCorner().getCoordinate();
		assertTrue(dp[0] == 50);
		assertTrue(dp[1] == 50);

		// ***** getRepresentativePoint()
		dp = comps1.getRepresentativePoint().getCoordinate();
		assertTrue(dp[0] == 20);
		assertTrue(dp[1] == 10);
		
		// Boundary operation of CompositeSurface not implemented yet. Hence isCycle doesn´t work yet.
		//assertTrue(comps1.isCycle() == false);
		
	}
}