[GeoTools] Problème d'affichage

**anaxa_gore** · 05/03/2008, 17h50

Bonjour,

J'ai un petit soucis avec la geotools que je suis en train de (re)prendre en main.

Lorsque je veux afficher un shapefile, je n'ai pas de soucis :

Code :

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private static JFrame frm = new JFrame("Tests Features");
    
    private static MapContext mapcontext = new DefaultMapContext(DefaultGeographicCRS.WGS84);
    private static GTRenderer renderer = new StreamingRenderer();
    private static JMapPane mappane = new JMapPane();
    
    /**
     * @param args
     * @throws IllegalAttributeException 
     * @throws IOException 
     */
    public static void main(String[] args) throws IllegalAttributeException, IOException {
        mappane.setBackground(new Color(157,201,255));
        
        frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frm.setSize(new Dimension(800,600));
        frm.setContentPane(mappane);
        
        mapcontext.setTitle("First try to display feature");
        mappane.setContext(mapcontext);
        
        URL shapefile = _1_TestShape.class.getResource("/shape/bc_border.shp");
        ShapefileDataStore store = new ShapefileDataStore(shapefile);
        String name = store.getTypeNames()[0];
        FeatureSource source = store.getFeatureSource(name);
        
        StyleBuilder sb = new StyleBuilder();
        PolygonSymbolizer ps = sb.createPolygonSymbolizer(new Color(253,241,187),1);
        Style solstyle = sb.createStyle();
        solstyle.addFeatureTypeStyle(sb.createFeatureTypeStyle(ps));
        
        MapLayer layer;
        
        layer = new DefaultMapLayer(source,solstyle);
        layer.setTitle("My first Shape");
        layer.setVisible(true);
        
        mapcontext.addLayer(layer);
        
        mappane.setRenderer(renderer);
        mappane.setMapArea(mapcontext.getLayerBounds());
        
        frm.setVisible(true);
    }

m'affiche bien mon shapefile sur un fon bleuté...
Mais lorsque je désire créer des "features" à la main, alors là, je n'ai plus rien à l'écran :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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    private static JFrame frm = new JFrame("Tests Features");
    
    private static MapContext mapcontext = new DefaultMapContext(DefaultGeographicCRS.WGS84);
    private static GTRenderer renderer = new StreamingRenderer();
    private static JMapPane mappane = new JMapPane();
    
    /**
     * @param args
     * @throws IllegalAttributeException 
     * @throws IOException 
     */
    public static void main(String[] args) throws IllegalAttributeException, IOException {
        mappane.setBackground(new Color(157,201,255));
        
        frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frm.setSize(new Dimension(800,600));
        frm.setContentPane(mappane);
        
        mapcontext.setTitle("First try to display feature");
        mappane.setContext(mapcontext);
        
        DefaultFeatureTypeBuilder builder = new DefaultFeatureTypeBuilder();
        builder.setName("Test");
        builder.add("point", Point.class);
        
        DefaultFeatureType pointType = builder.buildFeatureType();
        
        Point pt = new GeometryFactory().createPoint(new Coordinate(0,0));
        Point pt2 = new GeometryFactory().createPoint(new Coordinate(10,15));
        Point pt3 = new GeometryFactory().createPoint(new Coordinate(-10,-3));
        
        DefaultFeature feature = (DefaultFeature)pointType.create(new Object[] {pt}, "1");
        DefaultFeature feature2 = (DefaultFeature)pointType.create(new Object[] {pt2}, "2");
        DefaultFeature feature3 = (DefaultFeature)pointType.create(new Object[] {pt3}, "3");
        
//        StyleBuilder sb = new StyleBuilder();
//        PointSymbolizer ps = sb.createPointSymbolizer();
//        Style ptStyle = sb.createStyle();
//        ptStyle.addFeatureTypeStyle(sb.createFeatureTypeStyle(ps));
        
        SLDParser parser = new SLDParser(new StyleFactoryImpl());
        URL sld = _2_TestSimplePlace.class.getResource("/shape/sld.xml");
        parser.setInput(sld);
        Style ptStyle = parser.readXML()[0];
        
        System.out.println("FEATURES :");
        System.out.println("\t" + feature);
        System.out.println("\t" + feature2);
        System.out.println("\t" + feature3);
        
        DefaultFeatureCollection col = new DefaultFeatureCollection("id",pointType);
        col.add(feature);
        col.add(feature2);
        col.add(feature3);
        
        MapLayer layer;
        
        layer = new DefaultMapLayer(col,ptStyle);
        layer.setTitle("My first Place");
        layer.setVisible(true);
        
        System.out.println("LAYER :");
        System.out.println("\t" + layer);
        System.out.println("\tBounds = " + layer.getBounds());
        
        mapcontext.addLayer(layer);
        mapcontext.setAreaOfInterest(layer.getBounds());
        
        System.out.println("MAPCONTEXT :");
        System.out.println("\t" + mapcontext.getLayerBounds());
        
        mappane.setRenderer(renderer);
        
        frm.setVisible(true);
    }

me fournit uniquement le fond bleu...
Comment cela se fait-il ? Y a t il une transformation a effectuer dans les coordonnées des points ??? :o:

A titre indicatif, mon SLD est le suivant :

Code :

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<?xml version="1.0" encoding="UTF-8"?>
<UserStyle xmlns:ogc="http://www.opengis.net">
    <FeatureTypeStyle>
    
        <!-- This part specifies the point symbol -->
        <Rule>
            <PointSymbolizer>
                <Geometry>
                    <ogc:PropertyName>point</ogc:PropertyName>
                </Geometry>
                <Graphic>
                    <Mark>
                        <WellKnownName>star</WellKnownName>
                        <Fill>
                            <CssParameter name="fill">#ee3b3b</CssParameter>
                            <CssParameter name="fill-opacity">0.6</CssParameter>
                        </Fill>
                        <Stroke>
                            <CssParameter name="stroke">#0000ee</CssParameter>
                            <CssParameter name="stroke-opacity">1</CssParameter>
                            <CssParameter name="stroke-width">1</CssParameter>
                        </Stroke>
                    </Mark>
                    <Size>12.0</Size>
                </Graphic>
            </PointSymbolizer>
        </Rule>
    </FeatureTypeStyle>
</UserStyle>