Examples of org.geotools.map.FeatureLayer

org.geotools.map.FeatureLayer
Layer responsible for rendering vector information provided by a FeatureSource.
The FeatureLayer combines:
- data: FeatureSource
- style: Style
Please note that a StyleLayerDescriptor (defined by SLD) document is usually used to describe the rendering requirements for an entire Map; while a Style (defined by SE) is focused on a single layer of content @since 2.7 @version 8.0 @source $URL$

        Style rasterStyle = createRasterStyle();
        Style lineStyle = createLineStyle();
        
        MapContent mapContent = new MapContent();
        mapContent.addLayer(new GridCoverageLayer(oomCoverage, rasterStyle));
        mapContent.addLayer(new FeatureLayer(lines, lineStyle));
     
        final StreamingRenderer sr = new StreamingRenderer() {
            
            // makes it easy to reproduce the deadlock, just two features are sufficient
            protected BlockingQueue<RenderingRequest> getRequestsQueue() {

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        StyleBuilder sb = new StyleBuilder();
        Style style20 = sb.createStyle(sb.createLineSymbolizer(20));
        Style style10 = sb.createStyle(sb.createLineSymbolizer(10));
        
        MapContent mc = new MapContent();
        mc.addLayer(new FeatureLayer(testSource, style20));
        mc.addLayer(new FeatureLayer(testSource, style10));
        
        StreamingRenderer sr = new StreamingRenderer();
        sr.setMapContent(mc);
        BufferedImage bi = new BufferedImage(100, 100, BufferedImage.TYPE_3BYTE_BGR);
        Graphics2D graphics = bi.createGraphics();

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        SimpleFeatureSource zzSource = new CollectionFeatureSource(fc);
        
        // prepare the map
        MapContent mc = new MapContent();
        StyleBuilder sb = new StyleBuilder();
        mc.addLayer(new FeatureLayer(zzSource, sb.createStyle(sb.createLineSymbolizer())));
        StreamingRenderer sr = new StreamingRenderer();
        sr.setMapContent(mc);


        // collect rendered features
        final List<SimpleFeature> features = new ArrayList<SimpleFeature>();

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    private StreamingRenderer setupLineMap(String styleFile) throws IOException {
        Style style = RendererBaseTest.loadStyle(this, styleFile);
        
        MapContent mc = new MapContent();
        mc.addLayer(new FeatureLayer(fs, style));
        
        StreamingRenderer renderer = new StreamingRenderer();
        renderer.setMapContent(mc);
        renderer.setJava2DHints(new RenderingHints(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON));
        return renderer;

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        PolygonSymbolizer ps = sb.createPolygonSymbolizer();
        Style style = sb.createStyle(ps);
        Rule rule = style.featureTypeStyles().get(0).rules().get(0);
        rule.setFilter(ff.bbox("geom", 1, 1, 4, 4, "EPSG:4326"));


        content.addLayer(new FeatureLayer(squareFS, style));


        RendererBaseTest.showRender("Spatial with default CRS", renderer, TIME, bounds);
        assertEquals(2, renderedIds.size());
    }

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        PolygonSymbolizer ps = sb.createPolygonSymbolizer();
        Style style = sb.createStyle(ps);
        Rule rule = style.featureTypeStyles().get(0).rules().get(0);
        rule.setFilter(ff.bbox("geom", 1, 1, 4, 4, null));


        content.addLayer(new FeatureLayer(squareFS, style));


        RendererBaseTest.showRender("Spatial without CRS", renderer, TIME, bounds);
        assertEquals(2, renderedIds.size());
    }

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        rule.setFilter(ff.bbox("geom", 5, 1, 7, 3, null));
        
        // force EPSG axis order interpretation
        renderer.setRendererHints(Collections.singletonMap(StreamingRenderer.FORCE_EPSG_AXIS_ORDER_KEY, true));


        content.addLayer(new FeatureLayer(pointFS, style));


        RendererBaseTest.showRender("Spatial in EPSG order", renderer, TIME, bounds);
        assertEquals(1, renderedIds.size());
        assertEquals("point.4", renderedIds.iterator().next());
    }

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        rule.setFilter(ff.bbox("geom", envUTM31N.getMinX(), envUTM31N.getMinY(), envUTM31N.getMaxX(), envUTM31N.getMaxY(), "EPSG:32631"));
        
        // force EPSG axis order interpretation
        renderer.setRendererHints(Collections.singletonMap(StreamingRenderer.FORCE_EPSG_AXIS_ORDER_KEY, true));


        content.addLayer(new FeatureLayer(pointFS, style));


        RendererBaseTest.showRender("Spatial in EPSG order", renderer, TIME, bounds);
        assertEquals(1, renderedIds.size());
        assertEquals("point.4", renderedIds.iterator().next());
    }

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        Rule rule = style.featureTypeStyles().get(0).rules().get(0);
        Polygon polygon = JTS.toGeometry(envUTM31N);
        polygon.setUserData(utm31n);
        rule.setFilter(ff.intersects(ff.property("geom"), ff.literal(polygon)));
        
        content.addLayer(new FeatureLayer(pointFS, style));


        RendererBaseTest.showRender("Reprojected polygon", renderer, TIME, bounds);
        assertEquals(1, renderedIds.size());
        assertEquals("point.4", renderedIds.iterator().next());
    }

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    @Test
    public void testReprojectedPolygonFromSLD() throws Exception {
        // same as above, but with the style in SLD form
        Style style = RendererBaseTest.loadStyle(this, "spatialFilter.sld");
        
        content.addLayer(new FeatureLayer(pointFS, style));


        RendererBaseTest.showRender("Reprojected polygon from SLD", renderer, TIME, bounds);
        assertEquals(1, renderedIds.size());
        assertEquals("point.4", renderedIds.iterator().next());
    }

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