/*
* 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.xml;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.geotools.geometry.GeometryBuilder;
import org.geotools.geometry.iso.root.GeometryImpl;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.opengis.geometry.DirectPosition;
import org.opengis.geometry.coordinate.GeometryFactory;
import org.opengis.geometry.coordinate.LineString;
import org.opengis.geometry.primitive.Curve;
import org.opengis.geometry.primitive.PrimitiveFactory;
import org.opengis.geometry.primitive.Ring;
import org.opengis.geometry.primitive.Surface;
import org.opengis.geometry.primitive.SurfaceBoundary;
import org.opengis.referencing.FactoryException;
import org.opengis.referencing.crs.CRSFactory;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import junit.framework.TestCase;
/**
*
*
* @source $URL$
*/
public abstract class AbstractGeometryTest extends TestCase {
private org.opengis.geometry.coordinate.GeometryFactory gFact;
private org.opengis.geometry.primitive.PrimitiveFactory pFact;
protected CoordinateReferenceSystem crs;
protected static String WGS84_WKT =
"GEOGCS[\"WGS84\", DATUM[\"WGS84\", SPHEROID[\"WGS84\", 6378137.0, 298.257223563]]," +
"PRIMEM[\"Greenwich\", 0.0], UNIT[\"degree\",0.017453292519943295], " +
"AXIS[\"Longitude\",EAST], AXIS[\"Latitude\",NORTH]]";
/**
* setUp
* Called before each test.
*
* @throws FactoryException
*/
public void setUp() throws FactoryException {
GeometryBuilder builder = new GeometryBuilder(DefaultGeographicCRS.WGS84);
gFact = builder.getGeometryFactory();
pFact = builder.getPrimitiveFactory();
}
protected GeometryFactory getGeometryFactory() {
return gFact;
}
protected PrimitiveFactory getPrimitiveFactory() {
return pFact;
}
protected DirectPosition createDirectPosition(double x, double y) {
double[] coords = new double[2];
coords[0] = x;
coords[1] = y;
return gFact.createDirectPosition(coords);
}
/**
* A helper method for creating a Curve from an array of DirectPositions
*
* @param points
* @return a <tt>Curve</tt>
*/
protected Curve createCurve(final DirectPosition[] points) {
final List curveSegmentList = Collections.singletonList(createLineString(points));
final Curve curve = pFact.createCurve(curveSegmentList);
return curve;
}
/**
* A helper method for creating a lineString from an array of DirectPositions
*
* @param points
* @return <tt>LineString</tt>
*/
protected LineString createLineString(final DirectPosition[] points) {
final LineString lineString = gFact.createLineString(new ArrayList(Arrays.asList(points)));
return lineString;
}
/**
* A helper method for creating a Ring from an array of DirectPositions
*
* @param curve
* @return a <tt>Ring</tt>
*/
protected Ring createRing(final Curve curve) {
final List curveList = Collections.singletonList(curve);
final Ring ring = pFact.createRing(curveList);
return ring;
}
/**
* creates a SurfaceBoundary using a curve as the exterior
*
* @param exterior
* @return <tt>SurfaceBoundary</tt>
*/
protected SurfaceBoundary createSurfaceBoundary(Curve exterior) {
final Ring exteriorRing = createRing(exterior);
List interiorRingList = Collections.EMPTY_LIST;
SurfaceBoundary surfaceBoundary = null;
surfaceBoundary = pFact.createSurfaceBoundary(exteriorRing, interiorRingList);
return surfaceBoundary;
}
/**
* Creates a simple polygon with no holes
* @param points points defining the polygon (surface)
* @return the surface created out of the points
*/
protected Surface createSurface(final DirectPosition[] points) {
Curve curve = createCurve(points);
SurfaceBoundary surfaceBoundary = createSurfaceBoundary(curve);
Surface surface = getPrimitiveFactory().createSurface(surfaceBoundary);
return surface;
}
}