/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, 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.renderer.lite;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.util.Collections;
import junit.framework.TestCase;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.feature.DefaultFeatureCollection;
import org.geotools.feature.FeatureCollections;
import org.geotools.feature.IllegalAttributeException;
import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.geotools.map.DefaultMapContext;
import org.geotools.map.MapContext;
import org.geotools.referencing.CRS;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.geotools.renderer.RenderListener;
import org.geotools.styling.Style;
import org.geotools.styling.StyleBuilder;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
/**
* Tests for rendering and reprojection
*
* @author wolf
*
*
*
*
* @source $URL$
*/
public class ReprojectionTest extends TestCase {
private SimpleFeatureType pointFeautureType;
private GeometryFactory gf = new GeometryFactory();
protected int errors;
protected void setUp() throws Exception {
super.setUp();
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.setName("Lines");
builder.add("geom", LineString.class, DefaultGeographicCRS.WGS84);
pointFeautureType = builder.buildFeatureType();
}
public SimpleFeatureCollection createLineCollection() throws Exception {
DefaultFeatureCollection fc = new DefaultFeatureCollection();
fc.add(createLine(-177, 0, -177, 10));
fc.add(createLine(-177, 0, -200, 0));
fc.add(createLine(-177, 0, -177, 100));
return fc;
}
private SimpleFeature createLine(double x1, double y1, double x2, double y2)
throws IllegalAttributeException {
Coordinate[] coords = new Coordinate[] { new Coordinate(x1, y1), new Coordinate(x2, y2) };
return SimpleFeatureBuilder.build(pointFeautureType, new Object[] { gf
.createLineString(coords) }, null);
}
private Style createLineStyle() {
StyleBuilder sb = new StyleBuilder();
return sb.createStyle(sb.createLineSymbolizer());
}
public void testSkipProjectionErrors() throws Exception {
// build map context
MapContext mapContext = new DefaultMapContext(DefaultGeographicCRS.WGS84);
mapContext.addLayer(createLineCollection(), createLineStyle());
// build projected envelope to work with (small one around the area of
// validity of utm zone 1, which being a Gauss projection is a vertical
// slice parallel to the central meridian, -177°)
ReferencedEnvelope reWgs = new ReferencedEnvelope(new Envelope(-180, -170, 20, 40),
DefaultGeographicCRS.WGS84);
CoordinateReferenceSystem utm1N = CRS.decode("EPSG:32601");
System.out.println(CRS.getGeographicBoundingBox(utm1N));
ReferencedEnvelope reUtm = reWgs.transform(utm1N, true);
BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_4BYTE_ABGR);
// setup the renderer and listen for errors
StreamingRenderer sr = new StreamingRenderer();
sr.setContext(mapContext);
sr.addRenderListener(new RenderListener() {
public void featureRenderer(SimpleFeature feature) {
}
public void errorOccurred(Exception e) {
e.printStackTrace();
errors++;
}
});
errors = 0;
sr.paint((Graphics2D) image.getGraphics(), new Rectangle(200, 200), reUtm);
// we should get two errors since there are two features that cannot be
// projected but the renderer itself should not throw exceptions
assertEquals(1, errors);
}
}