Examples with GridReaderLayer org.geotools.map.GridReaderLayer used on opensource projects

Example 1 with GridReaderLayer

use of org.geotools.map.GridReaderLayer in project sldeditor by robward-scisys.

the class RenderPanelImpl method renderRasterMap.

/**
 * Render raster map.
 *
 * @param imageSize the image size
 * @param style the style
 * @param dpi the dpi
 */
private void renderRasterMap(Rectangle imageSize, Style style, int dpi) {
    DataSourceInterface dataSource = DataSourceFactory.getDataSource();
    AbstractGridCoverage2DReader gridCoverage = dataSource.getGridCoverageReader();
    if (gridCoverage == null) {
        validSymbol = false;
    }
    GridReaderLayer rasterLayer = null;
    MapViewport viewport = null;
    List<Layer> layerList = new ArrayList<Layer>();
    if (style != null) {
        rasterLayer = new GridReaderLayer(gridCoverage, style);
        layerList.add(rasterLayer);
        viewport = new MapViewport(rasterLayer.getBounds());
    }
    boolean hasGeometry = true;
    MapContent map = new MapContent();
    map.addLayers(layerList);
    map.setViewport(viewport);
    try {
        Map<Object, Object> hints = new HashMap<Object, Object>();
        if (OVERRIDE_DPI) {
            hints.put(StreamingRenderer.DPI_KEY, dpi);
        }
        // This ensures all the labelling is cleared
        hints.put(StreamingRenderer.LABEL_CACHE_KEY, new LabelCacheImpl());
        renderer.setRendererHints(hints);
        renderer.setMapContent(map);
        BufferedImage image = new BufferedImage(imageSize.width, imageSize.height, BufferedImage.TYPE_INT_ARGB);
        Graphics2D graphics = image.createGraphics();
        if (useAntiAlias) {
            graphics.setRenderingHints(new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON));
        }
        try {
            if (!hasGeometry) {
                graphics.setColor(Color.BLACK);
                int y = imageSize.height / 2;
                Font font = new Font(Font.SERIF, Font.BOLD, 14);
                graphics.setFont(font);
                graphics.drawString(Localisation.getString(RenderPanelImpl.class, "RenderPanelImpl.error1"), 10, y - 14);
            } else {
                if (rasterLayer != null) {
                    ReferencedEnvelope bounds = rasterLayer.getBounds();
                    renderer.paint(graphics, imageSize, bounds);
                }
                this.bImage = image;
            }
        } finally {
            graphics.dispose();
        }
    } finally {
        map.dispose();
    }
}

Example 2 with GridReaderLayer

use of org.geotools.map.GridReaderLayer in project sldeditor by robward-scisys.

the class MapRender method renderSymbol.

/**
 * Render symbol.
 *
 * @param mapContent the map content
 * @param styledLayer the styled layer
 * @param style the style
 */
private void renderSymbol(MapContent mapContent, StyledLayer styledLayer, Style style) {
    for (Layer layer : mapContent.layers()) {
        mapContent.removeLayer(layer);
    }
    switch(geometryType) {
        case RASTER:
            {
                GridReaderLayer gridLayer = new GridReaderLayer(gridCoverage, (org.geotools.styling.Style) style);
                mapContent.addLayer(gridLayer);
                mapContent.getViewport().setBounds(gridLayer.getBounds());
                if (gridCoverage != null) {
                    mapPane.setDisplayArea(gridCoverage.getOriginalEnvelope());
                }
            }
            break;
        case POINT:
        case LINE:
        case POLYGON:
            {
                FeatureSource<SimpleFeatureType, SimpleFeature> tmpFeatureList = null;
                if (styledLayer instanceof UserLayer) {
                    if (userLayerFeatureListMap != null) {
                        tmpFeatureList = userLayerFeatureListMap.get(styledLayer);
                    }
                } else {
                    tmpFeatureList = featureList;
                }
                if (tmpFeatureList != null) {
                    mapContent.addLayer(new FeatureLayer(tmpFeatureList, (org.geotools.styling.Style) style));
                    try {
                        mapPane.setDisplayArea(tmpFeatureList.getBounds());
                    } catch (IOException e) {
                        ConsoleManager.getInstance().exception(this, e);
                    }
                }
            }
            break;
        default:
            break;
    }
    wmsEnvVarValues.setMapBounds(mapBounds);
    EnvironmentVariableManager.getInstance().setWMSEnvVarValues(wmsEnvVarValues);
}

Example 3 with GridReaderLayer

use of org.geotools.map.GridReaderLayer in project polymap4-core by Polymap4.

the class RasterRenderProcessor method getMapRequest.

@Override
public void getMapRequest(GetMapRequest request, ProcessorContext context) throws Exception {
    // result
    BufferedImage result = new BufferedImage(request.getWidth(), request.getHeight(), TYPE_4BYTE_ABGR);
    final Graphics2D g = result.createGraphics();
    MapContent mapContent = new MapContent();
    try {
        mapContent.getViewport().setCoordinateReferenceSystem(request.getBoundingBox().getCoordinateReferenceSystem());
        mapContent.addLayer(new GridReaderLayer(reader, style.get()));
        // renderer
        StreamingRenderer renderer = new StreamingRenderer();
        // error handler
        renderer.addRenderListener(new RenderListener() {

            public void featureRenderer(SimpleFeature feature) {
            }

            public void errorOccurred(Exception e) {
                log.error("Renderer error: ", e);
                drawErrorMsg(g, "Fehler bei der Darstellung.", e);
            }
        });
        // rendering hints
        RenderingHints hints = new RenderingHints(KEY_RENDERING, VALUE_RENDER_QUALITY);
        hints.add(new RenderingHints(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON));
        hints.add(new RenderingHints(KEY_TEXT_ANTIALIASING, VALUE_TEXT_ANTIALIAS_ON));
        renderer.setJava2DHints(hints);
        // render params
        Map rendererParams = new HashMap();
        rendererParams.put("optimizedDataLoadingEnabled", Boolean.TRUE);
        renderer.setRendererHints(rendererParams);
        renderer.setMapContent(mapContent);
        Rectangle paintArea = new Rectangle(request.getWidth(), request.getHeight());
        renderer.paint(g, paintArea, request.getBoundingBox());
    } catch (Throwable e) {
        log.error("Renderer error: ", e);
        drawErrorMsg(g, null, e);
    } finally {
        mapContent.dispose();
        EnvFunction.clearLocalValues();
        if (g != null) {
            g.dispose();
        }
    }
    context.sendResponse(new ImageResponse(result));
}