Examples of GTRenderer

org.geotools.renderer.GTRenderer

GeoTools renderer for rendering spatial content into a Graphics2D. Typical usage:

 Rectangle paintArea = new Rectangle(width, height); ReferencedEnvelope mapArea = map.getBounds(); renderer = new StreamingRenderer(); renderer.setContext(map); RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON ); renderer.setJava2DHints(hints); Map rendererParams = new HashMap(); rendererParams.put("optimizedDataLoadingEnabled",new Boolean(true) ); renderer.setRendererHints( renderParams ); renderer.paint(graphic, paintArea, mapArea);

@author David Blasby @author Simone Giannecchini @source $URL$

Examples of org.geotools.renderer.GTRenderer

            validBounds=getContext().worldBounds(paintArea);


            MapViewport mapViewport = new MapViewport( validBounds );
            map.setViewport( mapViewport);


            GTRenderer geotToolsRenderer = getRenderer();


            if (bounds != null && !bounds.isNull()) {
                graphics.setClip(paintArea);
            }
            java.util.Map<Object, Object> rendererHints = geotToolsRenderer.getRendererHints();


            rendererHints.put(StreamingRenderer.DECLARED_SCALE_DENOM_KEY, getContext()
                    .getViewportModel().getScaleDenominator());
            rendererHints.put(StreamingRenderer.SCALE_COMPUTATION_METHOD_KEY,
                    StreamingRenderer.SCALE_ACCURATE);
            ILabelPainter labelPainter = getContext().getLabelPainter();
            Point origin = new Point(paintArea.x, paintArea.y);
            String layerId = getContext().getLayer().getID().toString();
            if (getContext().getLayer() instanceof SelectionLayer)
                layerId = layerId + "-Selection"; //$NON-NLS-1$
            rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY, new LabelCacheDecorator(
                    labelPainter, origin, layerId));


            geotToolsRenderer.setRendererHints(rendererHints);


            RenderingHints hints = new RenderingHints(Collections.EMPTY_MAP);
            hints.add(new RenderingHints(RenderingHints.KEY_RENDERING,
                    RenderingHints.VALUE_RENDER_SPEED));
            hints.add(new RenderingHints(RenderingHints.KEY_DITHERING,
                    RenderingHints.VALUE_DITHER_DISABLE));
            hints.add(new RenderingHints(RenderingHints.KEY_ALPHA_INTERPOLATION,
                    RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED));
            hints.add(new RenderingHints(RenderingHints.KEY_COLOR_RENDERING,
                    RenderingHints.VALUE_COLOR_RENDER_SPEED));
            hints.add(new RenderingHints(RenderingHints.KEY_INTERPOLATION,
                    RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR));
            hints.add(new RenderingHints(RenderingHints.KEY_STROKE_CONTROL,
                    RenderingHints.VALUE_STROKE_PURE));
            hints.add(new RenderingHints(RenderingHints.KEY_FRACTIONALMETRICS,
                    RenderingHints.VALUE_FRACTIONALMETRICS_OFF));


            IPreferenceStore store = ProjectPlugin.getPlugin().getPreferenceStore();
            boolean antiAliasing = store.getBoolean(PreferenceConstants.P_ANTI_ALIASING);
            hints.add(new RenderingHints(RenderingHints.KEY_ANTIALIASING, antiAliasing
                    ? RenderingHints.VALUE_ANTIALIAS_ON
                    : RenderingHints.VALUE_ANTIALIAS_OFF));


            graphics.addRenderingHints(hints);
            geotToolsRenderer.setJava2DHints(hints);


            if (monitor.isCanceled()){
                return;
            }
            if( paintArea == null || paintArea.isEmpty() || validBounds == null || validBounds.isEmpty() || validBounds.isNull() || validBounds.getWidth() <=0 || validBounds.getHeight()<=0 ){
                System.out.println("nothing to draw");
                // nothing to draw yet
            }
            else {
                geotToolsRenderer.paint(graphics, paintArea, validBounds);
            }


        } catch (Throwable renderingProblem) {
            if (renderingProblem instanceof InterruptedException){
                // ignore the rendering process being interrupted this is expected

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Examples of org.geotools.renderer.GTRenderer


        Rectangle paintArea = new Rectangle(mapWidth, mapHeight);


        mapContext.setAreaOfInterest(areaOfInterest, crs);


        GTRenderer renderer = new StreamingRenderer();
        renderer.setContext(mapContext);
        RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);


        renderer.setJava2DHints(hints);


        Map renderingHints = new HashMap();
        renderingHints.put("optimizedDataLoadingEnabled", Boolean.TRUE);
        renderingHints.put(StreamingRenderer.ADVANCED_PROJECTION_HANDLING_KEY, Boolean.TRUE);
        renderer.setRendererHints(renderingHints);
        renderer.paint(graphics, paintArea, areaOfInterest);
    }

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Examples of org.geotools.renderer.GTRenderer

   * @param bounds
   */
  private static void render(Object obj, Graphics g, Rectangle rect,
      ReferencedEnvelope bounds) {
    if (obj instanceof GTRenderer) {
      GTRenderer renderer = (GTRenderer) obj;


      if (bounds == null) {
        renderer.paint((Graphics2D) g, rect, new AffineTransform());
      } else {
        renderer.paint((Graphics2D) g, rect, bounds);
      }
    }
  }

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Examples of org.geotools.renderer.GTRenderer

        return context;
    }


    private GTRenderer createRenderer()
    {
        GTRenderer renderer;
        if ( false )
        {
            renderer = new StreamingRenderer();
            HashMap hints = new HashMap();
            hints.put( "memoryPreloadingEnabled", Boolean.TRUE );
            renderer.setRendererHints( hints );
        }
        else
        {
            renderer = new StreamingRenderer();
            HashMap hints = new HashMap();
            hints.put( "memoryPreloadingEnabled", Boolean.FALSE );
            renderer.setRendererHints( hints );
        }
        return renderer;
    }

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Examples of org.geotools.renderer.GTRenderer

    @Test
    public void settingRendererLinksToMapContent() {
        MapContent mapContent = new MapContent();
        mapPane.setMapContent(mapContent);
        
        GTRenderer renderer = new MockRenderer();
        mapPane.setRenderer(renderer);
        
        assertTrue(renderer.getMapContent() == mapContent);
    }

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Examples of org.geotools.renderer.GTRenderer

        assertTrue(renderer.getMapContent() == mapContent);
    }
    
    @Test
    public void settingMapContentLinksToRenderer() {
        GTRenderer renderer = new MockRenderer();
        mapPane.setRenderer(renderer);
        
        MapContent mapContent = new MapContent();
        mapPane.setMapContent(mapContent);
        
        assertTrue(renderer.getMapContent() == mapContent);
    }

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Examples of org.geotools.renderer.GTRenderer


        Rectangle paintArea = new Rectangle(mapWidth, mapHeight);


        mapContext.setAreaOfInterest(areaOfInterest, crs);


        GTRenderer renderer = new StreamingRenderer();
        renderer.setContext(mapContext);
        RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);


        renderer.setJava2DHints(hints);


        Map renderingHints = new HashMap();
        renderingHints.put("optimizedDataLoadingEnabled", Boolean.TRUE);
        renderingHints.put(StreamingRenderer.ADVANCED_PROJECTION_HANDLING_KEY, Boolean.TRUE);
        renderingHints.put(StreamingRenderer.CONTINUOUS_MAP_WRAPPING, Boolean.TRUE);
        renderer.setRendererHints(renderingHints);
        renderer.paint(graphics, paintArea, areaOfInterest);
    }

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Examples of org.geotools.renderer.GTRenderer


        Rectangle paintArea = new Rectangle(mapWidth, mapHeight);


        mapContent.setAreaOfInterest(areaOfInterest, crs);


        GTRenderer renderer = new StreamingRenderer();
        renderer.setContext(mapContent);
        RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);


        renderer.setJava2DHints(hints);


        Map renderingHints = new HashMap();
        renderingHints.put("optimizedDataLoadingEnabled", Boolean.TRUE);
        renderingHints.put(StreamingRenderer.ADVANCED_PROJECTION_HANDLING_KEY, Boolean.TRUE);
        renderingHints.put(StreamingRenderer.CONTINUOUS_MAP_WRAPPING, Boolean.TRUE);
        renderer.setRendererHints(renderingHints);
        renderer.paint(graphics, paintArea, areaOfInterest);
        
        mapContent.dispose();
    }

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Examples of org.geotools.renderer.GTRenderer


        // make sure the hints are set before we start rendering the map
        graphic.setRenderingHints(hintsMap);


        RenderingHints hints = new RenderingHints(hintsMap);
        GTRenderer renderer;
        if (DefaultWebMapService.useShapefileRenderer()) {
            renderer = new ShapefileRenderer();
        } else {
            StreamingRenderer sr = new StreamingRenderer();
            sr.setThreadPool(DefaultWebMapService.getRenderingPool());
            renderer = sr;
        }
        renderer.setContext(mapContext);
        renderer.setJava2DHints(hints);


        // setup the renderer hints
        Map<Object, Object> rendererParams = new HashMap<Object, Object>();
        rendererParams.put("optimizedDataLoadingEnabled", new Boolean(true));
        rendererParams.put("renderingBuffer", new Integer(mapContext.getBuffer()));
        rendererParams.put("maxFiltersToSendToDatastore", DefaultWebMapService.getMaxFilterRules());
        rendererParams.put(ShapefileRenderer.SCALE_COMPUTATION_METHOD_KEY,
                ShapefileRenderer.SCALE_OGC);
        if (AA_NONE.equals(antialias)) {
            rendererParams.put(ShapefileRenderer.TEXT_RENDERING_KEY,
                    StreamingRenderer.TEXT_RENDERING_STRING);
        } else {
            rendererParams.put(ShapefileRenderer.TEXT_RENDERING_KEY,
                    StreamingRenderer.TEXT_RENDERING_ADAPTIVE);
        }
        if (DefaultWebMapService.isLineWidthOptimizationEnabled()) {
            rendererParams.put(StreamingRenderer.LINE_WIDTH_OPTIMIZATION_KEY, true);
        }
        
        // turn on advanced projection handling
        rendererParams.put(StreamingRenderer.ADVANCED_PROJECTION_HANDLING_KEY, true);
        if(DefaultWebMapService.isContinuousMapWrappingEnabled()) {
            rendererParams.put(StreamingRenderer.CONTINUOUS_MAP_WRAPPING, true);
        }
        
        // see if the user specified a dpi
        if (mapContext.getRequest().getFormatOptions().get("dpi") != null) {
            rendererParams.put(StreamingRenderer.DPI_KEY, ((Integer) mapContext.getRequest()
                    .getFormatOptions().get("dpi")));
        }


        boolean kmplacemark = false;
        if (mapContext.getRequest().getFormatOptions().get("kmplacemark") != null)
            kmplacemark = ((Boolean) mapContext.getRequest().getFormatOptions().get("kmplacemark"))
                    .booleanValue();
        if (kmplacemark) {
            // create a StyleVisitor that copies a style, but removes the
            // PointSymbolizers and TextSymbolizers
            KMLStyleFilteringVisitor dupVisitor = new KMLStyleFilteringVisitor();


            // Remove PointSymbolizers and TextSymbolizers from the
            // layers' Styles to prevent their rendering on the
            // raster image. Both are better served with the
            // placemarks.
            MapLayer[] layers = mapContext.getLayers();
            for (int i = 0; i < layers.length; i++) {
                Style style = layers[i].getStyle();
                style.accept(dupVisitor);
                Style copy = (Style) dupVisitor.getCopy();
                layers[i].setStyle(copy);
            }
        }
        renderer.setRendererHints(rendererParams);


        // if abort already requested bail out
        // if (this.abortRequested) {
        // graphic.dispose();
        // return null;
        // }


        // enforce no more than x rendering errors
        int maxErrors = wms.getMaxRenderingErrors();
        MaxErrorEnforcer errorChecker = new MaxErrorEnforcer(renderer, maxErrors);


        // Add a render listener that ignores well known rendering exceptions and reports back non
        // ignorable ones
        final RenderExceptionStrategy nonIgnorableExceptionListener;
        nonIgnorableExceptionListener = new RenderExceptionStrategy(renderer);
        renderer.addRenderListener(nonIgnorableExceptionListener);


        // setup the timeout enforcer (the enforcer is neutral when the timeout is 0)
        int maxRenderingTime = wms.getMaxRenderingTime() * 1000;
        RenderingTimeoutEnforcer timeout = new RenderingTimeoutEnforcer(maxRenderingTime, renderer,
                graphic);
        timeout.start();
        try {
            // finally render the image;
            renderer.paint(graphic, paintArea, mapContext.getRenderingArea(),
                    mapContext.getRenderingTransform());


            // apply watermarking
            if (layout != null) {
                try {

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