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#1 Thu 08 July 2010 13:39
- salivie
- Juste Inscrit !
- Date d'inscription: 8 Jul 2010
- Messages: 1
Manipuler les fichier ShapeFile
Bonjour,
Je suis novice dans la manipulation des Fichiers ShapeFile.j'ai pu trouvé sur le net des codes Java qui m'ont permis de charger les fichiers ShapeFile dans les vues de mon application développer avec éclipse RCP.
le problème au quelle je suis confronté actuellement réside dans le fait que lors du chargement du shapfile j'aimerai ajouter des points de coordonnées.
quelqu'un saurait t'il comment s'y prendre.
Aussi, pour les logiciels de carto-graphie y'a t'il un moyen de développer deçu et ensuite intégrer le code dans mon application?
Merci Pour vos réponse.
Code:
package views.map;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.util.HashSet;
import java.util.Set;
import javax.swing.JButton;
import javax.swing.JToolBar;
import org.geotools.data.FileDataStore;
import org.geotools.data.FileDataStoreFinder;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.geotools.map.DefaultMapContext;
import org.geotools.map.MapContext;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Fill;
import org.geotools.styling.Graphic;
import org.geotools.styling.Mark;
import org.geotools.styling.Rule;
import org.geotools.styling.Stroke;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.Symbolizer;
import org.geotools.swing.JMapFrame;
import org.geotools.swing.data.JFileDataStoreChooser;
import org.geotools.swing.event.MapMouseEvent;
import org.geotools.swing.tool.CursorTool;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.type.GeometryDescriptor;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterFactory2;
import org.opengis.filter.identity.FeatureId;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.MultiLineString;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Polygon;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.eclipse.swt.SWT;
import org.eclipse.swt.awt.SWT_AWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.ViewPart;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.experimental.chart.swt.ChartComposite;
public class View_RXLFULL_Map extends ViewPart {
public static final String ID = "S.view_rxl_map";
private StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);
private FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2(null);
public static Integer fichierNMFId;
private enum GeomType { POINT, LINE, POLYGON };
private static final Color LINE_COLOUR = Color.BLUE;
private static final Color FILL_COLOUR = Color.RED;//Couleur du ShapeFile
private static final Color SELECTED_COLOUR = Color.YELLOW;
private static final float OPACITY = 1.0f;
private static final float LINE_WIDTH = 1.0f;
private static final float POINT_SIZE = 10.0f;
private JMapFrame mapFrame;
private SimpleFeatureSource featureSource;
private String geometryAttributeName;
private GeomType geometryType;
public View_RXLFULL_Map(){
}
public void displayShapefile(Composite parent,Graphics g) throws Exception {
File file = new File("C:/Documents and Settings/countries.shp");
FileDataStore store = FileDataStoreFinder.getDataStore(file);
System.out.println("********"+store.getInfo());
featureSource = store.getFeatureSource();
setGeometry();
MapContext map = new DefaultMapContext();
map.setTitle("Feature selection tool example");
Style style = createDefaultStyle();
map.addLayer(featureSource, style);
mapFrame = new JMapFrame(map);
mapFrame.enableToolBar(true);
mapFrame.enableStatusBar(true);
JToolBar toolBar = mapFrame.getToolBar();
JButton btn = new JButton("Select");
toolBar.addSeparator();
toolBar.add(btn);
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mapFrame.getMapPane().setCursorTool(
new CursorTool() {
@Override
public void onMouseClicked(MapMouseEvent ev) {
selectFeatures(ev);
}
});
}
});
mapFrame.setSize(600, 600);
mapFrame.setVisible(false);
Composite swtAwtComponent = new Composite(parent, SWT.EMBEDDED);
java.awt.Frame frame = SWT_AWT.new_Frame( swtAwtComponent );
frame.add(mapFrame.getContentPane());
}
void selectFeatures(MapMouseEvent ev) {
System.out.println("Mouse click at: " + ev.getMapPosition());
Point screenPos = ev.getPoint();
Rectangle screenRect = new Rectangle(screenPos.x-2, screenPos.y-2, 5, 5);
AffineTransform screenToWorld = mapFrame.getMapPane().getScreenToWorldTransform();
Rectangle2D worldRect = screenToWorld.createTransformedShape(screenRect).getBounds2D();
ReferencedEnvelope bbox = new ReferencedEnvelope(
worldRect,
mapFrame.getMapContext().getCoordinateReferenceSystem());
Filter filter = ff.intersects(ff.property(geometryAttributeName), ff.literal(bbox));
try {
SimpleFeatureCollection selectedFeatures =
featureSource.getFeatures(filter);
SimpleFeatureIterator iter = selectedFeatures.features();
Set<FeatureId> IDs = new HashSet<FeatureId>();
try {
while (iter.hasNext()) {
SimpleFeature feature = iter.next();
IDs.add(feature.getIdentifier());
System.out.println(" " + feature.getIdentifier());
}
} finally {
iter.close();
}
if (IDs.isEmpty()) {
System.out.println(" no feature selected");
}
displaySelectedFeatures(IDs);
} catch (Exception ex) {
ex.printStackTrace();
return;
}
}
public void displaySelectedFeatures(Set<FeatureId> IDs) {
Style style;
if (IDs.isEmpty()) {
style = createDefaultStyle();
} else {
style = createSelectedStyle(IDs);
}
mapFrame.getMapContext().getLayer(0).setStyle(style);
mapFrame.getMapPane().repaint();
}
private Style createDefaultStyle() {
Rule rule = createRule(LINE_COLOUR, FILL_COLOUR);
FeatureTypeStyle fts = sf.createFeatureTypeStyle();
fts.rules().add(rule);
Style style = sf.createStyle();
style.featureTypeStyles().add(fts);
return style;
}
private Style createSelectedStyle(Set<FeatureId> IDs) {
Rule selectedRule = createRule(SELECTED_COLOUR, SELECTED_COLOUR);
selectedRule.setFilter(ff.id(IDs));
Rule otherRule = createRule(LINE_COLOUR, FILL_COLOUR);
otherRule.setElseFilter(true);
FeatureTypeStyle fts = sf.createFeatureTypeStyle();
fts.rules().add(selectedRule);
fts.rules().add(otherRule);
Style style = sf.createStyle();
style.featureTypeStyles().add(fts);
return style;
}
private Rule createRule(Color outlineColor, Color fillColor) {
Symbolizer symbolizer = null;
Fill fill = null;
Stroke stroke = sf.createStroke(ff.literal(outlineColor), ff.literal(LINE_WIDTH));
switch (geometryType) {
case POLYGON:
fill = sf.createFill(ff.literal(fillColor), ff.literal(OPACITY));
symbolizer = sf.createPolygonSymbolizer(stroke, fill, geometryAttributeName);
break;
case LINE:
symbolizer = sf.createLineSymbolizer(stroke, geometryAttributeName);
break;
case POINT:
fill = sf.createFill(ff.literal(fillColor), ff.literal(OPACITY));
Mark mark = sf.getCircleMark();
mark.setFill(fill);
mark.setStroke(stroke);
Graphic graphic = sf.createDefaultGraphic();
graphic.graphicalSymbols().clear();
graphic.graphicalSymbols().add(mark);
graphic.setSize(ff.literal(POINT_SIZE));
symbolizer = sf.createPointSymbolizer(graphic, geometryAttributeName);
}
Rule rule = sf.createRule();
rule.symbolizers().add(symbolizer);
return rule;
}
private void setGeometry() {
GeometryDescriptor geomDesc = featureSource.getSchema().getGeometryDescriptor();
geometryAttributeName = geomDesc.getLocalName();
Class<?> clazz = geomDesc.getType().getBinding();
if (Polygon.class.isAssignableFrom(clazz) ||
MultiPolygon.class.isAssignableFrom(clazz)) {
geometryType = GeomType.POLYGON;
} else if (LineString.class.isAssignableFrom(clazz) ||
MultiLineString.class.isAssignableFrom(clazz)) {
geometryType = GeomType.LINE;
} else {
geometryType = GeomType.POINT;
}
}
public void createPartControl(Composite parent) {
try {
displayShapefile(parent);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void setFocus() {
}
}Hors ligne
