/*
* 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.renderer.lite;
import java.io.IOException;
import junit.framework.TestCase;
import org.geotools.data.memory.MemoryDataStore;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.feature.FeatureCollection;
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.DefaultGeographicCRS;
import org.geotools.styling.SLDParser;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.StyleFactoryFinder;
import org.geotools.test.TestData;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.AttributeDescriptor;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.LinearRing;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;
/**
* Tests the StreamingRenderer labelling algorithms
*
* @author jeichar
* @since 0.9.0
*
* @source $URL$
*/
public class LabelingTest extends TestCase {
private long timout=3000;
private static final int CENTERX = 130;
private static final int CENTERY = 40;
/*
* @see TestCase#setUp()
*/
protected void setUp() throws Exception {
// System.setProperty(TestData.INTERACTIVE_TEST_KEY, "true");
super.setUp();
}
/*
* @see TestCase#tearDown()
*/
protected void tearDown() throws Exception {
super.tearDown();
}
public void testPointLabeling() throws Exception {
FeatureCollection collection = createPointFeatureCollection();
Style style = loadStyle("PointStyle.sld");
assertNotNull(style);
MapContext map = new DefaultMapContext(DefaultGeographicCRS.WGS84);
map.addLayer(collection, style);
StreamingRenderer renderer = new StreamingRenderer();
renderer.setContext(map);
ReferencedEnvelope env = map.getLayerBounds();
int boundary = 10;
env = new ReferencedEnvelope(env.getMinX() - boundary, env.getMaxX() + boundary,
env.getMinY() - boundary, env.getMaxY() + boundary, null);
RendererBaseTest.showRender("testPointLabeling", renderer, timout, env);
}
private Style loadStyle(String sldFilename) throws IOException {
StyleFactory factory = StyleFactoryFinder.createStyleFactory();
java.net.URL surl = TestData.getResource(this, sldFilename);
SLDParser stylereader = new SLDParser(factory, surl);
Style style = stylereader.readXML()[0];
return style;
}
private SimpleFeatureCollection createPointFeatureCollection() throws Exception {
AttributeDescriptor[] types = new AttributeDescriptor[2];
GeometryFactory geomFac=new GeometryFactory();
CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;
MemoryDataStore data = new MemoryDataStore();
data.addFeature(createPointFeature(2,2,"LongLabel1",crs, geomFac, types));
data.addFeature(createPointFeature(4,4,"LongLabel2",crs, geomFac, types));
data.addFeature(createPointFeature(0,4,"LongLabel3",crs, geomFac, types));
// data.addFeature(createPointFeature(2,0,"Label4",crs, geomFac, types));
data.addFeature(createPointFeature(2,6,"LongLabel6",crs, geomFac, types));
return data.getFeatureSource(Rendering2DTest.POINT).getFeatures();
}
private SimpleFeature createPointFeature(int x, int y, String name, CoordinateReferenceSystem crs, GeometryFactory geomFac, AttributeDescriptor[] types) throws Exception{
Coordinate c = new Coordinate(x, y);
Point point = geomFac.createPoint(c);
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
if (crs != null)
builder.add("point", point.getClass(), crs);
else
builder.add("centre", point.getClass());
builder.add("name", String.class);
builder.setName("pointfeature");
SimpleFeatureType type = builder.buildFeatureType();
return SimpleFeatureBuilder.build(type, new Object[]{point, name}, null);
}
public void testLineLabeling() throws Exception {
FeatureCollection collection = createLineFeatureCollection();
Style style = loadStyle("LineStyle.sld");
assertNotNull(style);
MapContext map = new DefaultMapContext(DefaultGeographicCRS.WGS84);
map.addLayer(collection, style);
StreamingRenderer renderer = new StreamingRenderer();
renderer.setContext(map);
ReferencedEnvelope env = map.getLayerBounds();
int boundary = 10;
env = new ReferencedEnvelope(env.getMinX() - boundary, env.getMaxX() + boundary, env
.getMinY()
- boundary, env.getMaxY() + boundary, null);
RendererBaseTest.showRender("testLineLabeling", renderer, timout, env);
}
private SimpleFeatureCollection createLineFeatureCollection() throws Exception {
AttributeDescriptor[] types = new AttributeDescriptor[2];
GeometryFactory geomFac=new GeometryFactory();
CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;
MemoryDataStore data = new MemoryDataStore();
data.addFeature(createLineFeature(10,0,0,10,"LongLabel1",crs, geomFac, types));
data.addFeature(createLineFeature(10,10,0,0,"LongLabel2",crs, geomFac, types));
// data.addFeature(createPointFeature(0,2,"LongLabel3",crs, geomFac, types));
// data.addFeature(createPointFeature(2,0,"Label4",crs, geomFac, types));
// data.addFeature(createPointFeature(0,4,"LongLabel6",crs, geomFac, types));
return data.getFeatureSource(Rendering2DTest.LINE).getFeatures();
}
private SimpleFeature createLineFeature(int startx, int starty,int endx, int endy, String name, CoordinateReferenceSystem crs, GeometryFactory geomFac, AttributeDescriptor[] types) throws Exception{
Coordinate[] c = new Coordinate[]{new Coordinate(startx, starty),
new Coordinate(endx, endy)
};
LineString line= geomFac.createLineString(c);
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
if (crs != null)
builder.add("line", line.getClass(), crs);
else
builder.add("centre", line.getClass());
builder.add("name", String.class);
builder.setName(Rendering2DTest.LINE);
SimpleFeatureType type = builder.buildFeatureType();
return SimpleFeatureBuilder.build(type, new Object[]{line, name}, null);
}
public void testPolyLabeling() throws Exception{
FeatureCollection collection=createPolyFeatureCollection();
Style style=loadStyle("PolyStyle.sld");
assertNotNull(style);
MapContext map = new DefaultMapContext(DefaultGeographicCRS.WGS84);
map.addLayer(collection, style);
StreamingRenderer renderer=new StreamingRenderer();
renderer.setContext(map);
ReferencedEnvelope env = map.getLayerBounds();
int boundary=10;
env = new ReferencedEnvelope(env.getMinX() - boundary, env.getMaxX() + boundary,
env.getMinY() - boundary, env.getMaxY() + boundary, null);
RendererBaseTest.showRender("testPolyLabeling", renderer, timout, env);
}
private SimpleFeatureCollection createPolyFeatureCollection() throws Exception {
GeometryFactory geomFac=new GeometryFactory();
CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;
MemoryDataStore data = new MemoryDataStore();
data.addFeature(createPolyFeature(CENTERX+5,CENTERY+0,CENTERX+10,CENTERY+10,"LongLabel1",crs, geomFac));
data.addFeature(createPolyFeature(CENTERX+0,CENTERY+0,CENTERX+10,CENTERY+10,"LongLabel2",crs, geomFac));
return data.getFeatureSource(Rendering2DTest.POLYGON).getFeatures();
}
private SimpleFeature createPolyFeature(int startx, int starty,int width, int height, String name, CoordinateReferenceSystem crs, GeometryFactory geomFac) throws Exception{
Coordinate[] c = new Coordinate[]{new Coordinate(startx, starty),
new Coordinate(startx+width, starty),
new Coordinate(startx+width, starty+height),
new Coordinate(startx, starty),
};
LinearRing line= geomFac.createLinearRing(c);
Polygon poly = geomFac.createPolygon(line,null);
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
if (crs != null)
builder.add("polygon", poly.getClass(), crs);
else
builder.add("centre", line.getClass());
builder.add("name", String.class);
builder.setName(Rendering2DTest.POLYGON);
SimpleFeatureType type = builder.buildFeatureType();
return SimpleFeatureBuilder.build(type, new Object[]{poly, name}, null);
}
}