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

Example 1 with MapViewport

use of org.geotools.map.MapViewport 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();
    }
}