Problème de visualisation d'une carte avec GeoTools
Bonjour à tous j'ai suivi le tutoriel de GeoTools pour l'affichage d'une carte mais j'ai une erreur sur l'url du fichier qui conteient la carte à afficher mais je ne sais pas pourquoi car la carte est bien présente à l'emplacement cité
code:
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Menu;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import org.geotools.data.FeatureSource;
import org.geotools.data.Query;
import org.geotools.data.shapefile.ShapefileDataStore;
import org.geotools.gui.swing.JMapPane;
import org.geotools.map.DefaultMapContext;
import org.geotools.map.DefaultMapLayer;
import org.geotools.map.MapContext;
import org.geotools.map.MapLayer;
import org.geotools.renderer.lite.StreamingRenderer;
import org.geotools.styling.LineSymbolizer;
import org.geotools.styling.PolygonSymbolizer;
import org.geotools.styling.Style;
import org.geotools.styling.StyleBuilder;
public class Main {
private JMapPane mappane = new JMapPane();
public Main() {
JFrame frm = new JFrame();
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frm.setSize(800,600);
frm.setTitle("Ma Première carte avec GeoTools");
JPanel pfond = new JPanel(new BorderLayout());
frm.setContentPane(pfond);
frm.setJMenuBar(buildMenu());
frm.getContentPane().add(BorderLayout.CENTER,buildMap());
frm.getContentPane().add(BorderLayout.NORTH,buildTool());
frm.setVisible(true);
}
private JMenuBar buildMenu() {
JMenuBar menu = new JMenuBar();
JMenu mfichier = new JMenu("Fichier");
JMenuItem iquitter = new JMenuItem("Quitter");
iquitter.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
mfichier.add(iquitter);
menu.add(mfichier);
return menu;
}
private JPanel buildMap() {
mappane.setBackground(new Color(157,201,255));
try{
@SuppressWarnings("deprecation")
MapContext mapcontext = new DefaultMapContext();
mapcontext.setTitle( "Projet" );
mappane.setContext(mapcontext);
MapLayer maplayer;
URL shapeURL = Main.class.getResource("D:/espace de travail/shape/occ_sol.shp");
ShapefileDataStore store = new ShapefileDataStore(shapeURL);
String name = store.getTypeNames()[0];
FeatureSource source = store.getFeatureSource(name);
StyleBuilder sb = new StyleBuilder();
PolygonSymbolizer ps =sb.createPolygonSymbolizer( new Color(253,241,187),new Color(163,151,97),1);
Style solstyle = sb.createStyle();
solstyle.addFeatureTypeStyle(sb.createFeatureTypeStyle(ps));
maplayer = new DefaultMapLayer(source,solstyle);
maplayer.setTitle("occ_sol.shp");
maplayer.setVisible(true);
maplayer.setQuery(Query.ALL);
mapcontext.addLayer(maplayer);
shapeURL = Menu.class.getResource("D:/espace de travail/shape/reseau_route.shp");
store = new ShapefileDataStore(shapeURL);
name = store.getTypeNames()[0];
source = store.getFeatureSource(name);
sb = new StyleBuilder();
LineSymbolizer ls2 = sb.createLineSymbolizer(Color.RED, 1);
Style roadsStyle = sb.createStyle();
roadsStyle.addFeatureTypeStyle(sb.createFeatureTypeStyle(ls2));
maplayer = new DefaultMapLayer(source,roadsStyle);
maplayer.setTitle("reseau_route.shp");
maplayer.setVisible(true);
maplayer.setQuery(Query.ALL);
mapcontext.addLayer(maplayer);
StreamingRenderer render = new StreamingRenderer();
mappane.setRenderer(render);
mappane.setMapArea(mapcontext.getLayerBounds());
} catch(Exception e){
e.printStackTrace();
}
return mappane;
}
private JPanel buildTool() {
JPanel outil = new JPanel(new FlowLayout(FlowLayout.LEFT));
JButton plus = new JButton("+");
plus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mappane.setState(JMapPane.ZoomIn);
}
});
outil.add(plus);
JButton moins = new JButton("-");
moins.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mappane.setState(JMapPane.ZoomOut);
}
});
outil.add(moins);
JButton pan = new JButton("Pan");
pan.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mappane.setState(JMapPane.Pan);
}
});
outil.add(pan);
return outil;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Main m=new Main();
}
} |
Erreur:
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java.lang.NullPointerException: Null URL for ShapefileDataSource
at org.geotools.data.shapefile.ShapefileDataStore.<init>(ShapefileDataStore.java:146)
at org.geotools.data.shapefile.ShapefileDataStore.<init>(ShapefileDataStore.java:139)
at org.geotools.data.shapefile.ShapefileDataStore.<init>(ShapefileDataStore.java:135)
at Main.buildMap(Main.java:79)
at Main.<init>(Main.java:45)
at Main.main(Main.java:151) |
