Example usage for java.awt RenderingHints KEY

Introduction

In this page you can find the example usage for java.awt RenderingHints KEY_ANTIALIASING.

Prototype

Key KEY_ANTIALIASING

To view the source code for java.awt RenderingHints KEY_ANTIALIASING.

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Document

Antialiasing hint key.

Usage

From source file:ch.rasc.downloadchart.DownloadChartServlet.java

private static void handleJpg(HttpServletResponse response, byte[] imageData, Integer width, Integer height,
        String filename, JpegOptions options) throws IOException {

    response.setContentType("image/jpeg");
    response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + ".jpg\";");

    BufferedImage image = ImageIO.read(new ByteArrayInputStream(imageData));

    Dimension newDimension = calculateDimension(image, width, height);
    int imgWidth = image.getWidth();
    int imgHeight = image.getHeight();
    if (newDimension != null) {
        imgWidth = newDimension.width;/*from   w ww.j  ava  2s  . c  o m*/
        imgHeight = newDimension.height;
    }

    BufferedImage newImage = new BufferedImage(imgWidth, imgHeight, BufferedImage.TYPE_INT_RGB);

    Graphics2D g = newImage.createGraphics();
    g.drawImage(image, 0, 0, imgWidth, imgHeight, Color.BLACK, null);
    g.dispose();

    if (newDimension != null) {
        g.setComposite(AlphaComposite.Src);
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    }

    try (ImageOutputStream ios = ImageIO.createImageOutputStream(response.getOutputStream())) {
        Iterator<ImageWriter> iter = ImageIO.getImageWritersByFormatName("jpg");
        ImageWriter writer = iter.next();
        ImageWriteParam iwp = writer.getDefaultWriteParam();
        iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        if (options != null && options.quality != null && options.quality != 0 && options.quality != 100) {
            iwp.setCompressionQuality(options.quality / 100f);
        } else {
            iwp.setCompressionQuality(1);
        }
        writer.setOutput(ios);
        writer.write(null, new IIOImage(newImage, null, null), iwp);
        writer.dispose();
    }
}

From source file:com.igormaznitsa.jhexed.renders.svg.SVGImage.java

public void render(final Graphics2D g) throws IOException {
    final Object antialiasText = g.getRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING);
    final Object antialiasDraw = g.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
    final Object antialiasAlpha = g.getRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION);
    try {//  w w  w . java 2  s  .  c  o m
        processAntialias(this.quality, g);
        this.svgGraphicsNode.primitivePaint(g);
    } finally {
        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                antialiasText == null ? RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT : antialiasText);
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                antialiasDraw == null ? RenderingHints.VALUE_ANTIALIAS_DEFAULT : antialiasDraw);
        g.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                antialiasAlpha == null ? RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT : antialiasAlpha);
    }
}

From source file:com.hmsinc.epicenter.spatial.render.SpatialScanRenderer.java

/**
 * @param context/*ww w  .j av a2s  . c  o  m*/
 * @return
 */
private BufferedImage renderImage(final MapContext context, int width, int height) {

    logger.trace("Image width: {}  height: {}", width, height);

    final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    final Graphics2D graphics2D = (Graphics2D) image.getGraphics();

    final GTRenderer renderer = new StreamingRenderer();
    final RenderingHints h = new RenderingHints(RenderingHints.KEY_INTERPOLATION,
            RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    h.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    h.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    h.put(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    h.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
    renderer.setJava2DHints(h);
    renderer.setContext(context);
    renderer.paint(graphics2D, new Rectangle(width, height), context.getAreaOfInterest());

    return image;
}

From source file:uk.co.modularaudio.service.gui.impl.racktable.back.AbstractLinkImage.java

private void drawLinkWireIntoImage(final Point sourcePoint, final Point sinkPoint) {
    //      log.debug("Drawing link from " + sourcePoint + " to " + sinkPoint);

    final int fromX = sourcePoint.x;
    final int fromY = sourcePoint.y;
    final int toX = sinkPoint.x;
    final int toY = sinkPoint.y;

    float f1, f2, f3, f4, f5, f6, f7, f8 = 0.0f;
    f1 = fromX;//from  ww  w  . ja v a  2s.co  m
    f2 = fromY;
    f3 = fromX;
    f4 = fromY + WIRE_DIP_PIXELS;
    f5 = toX;
    f6 = toY + WIRE_DIP_PIXELS;
    f7 = toX;
    f8 = toY;
    final CubicCurve2D cubicCurve = new CubicCurve2D.Float(f1, f2, f3, f4, f5, f6, f7, f8);
    final Rectangle cubicCurveBounds = cubicCurve.getBounds();

    final int imageWidthToUse = cubicCurveBounds.width + LINK_IMAGE_PADDING_FOR_WIRE_RADIUS;
    //      int imageHeightToUse = cubicCurveBounds.height + WIRE_DIP_PIXELS;
    int imageHeightToUse = cubicCurveBounds.height;
    // If the wire is close to vertical (little Y difference) we make the image a little bigger to account for the wire "dip"
    if (Math.abs(sinkPoint.y - sourcePoint.y) <= WIRE_DIP_PIXELS) {
        imageHeightToUse += (WIRE_DIP_PIXELS / 2);
    }

    //      bufferedImage = new BufferedImage( imageWidthToUse, imageHeightToUse, BufferedImage.TYPE_INT_ARGB );
    try {
        tiledBufferedImage = bufferImageAllocationService.allocateBufferedImage(allocationSource,
                allocationMatchToUse, AllocationLifetime.SHORT, AllocationBufferType.TYPE_INT_ARGB,
                imageWidthToUse, imageHeightToUse);

        bufferedImage = tiledBufferedImage.getUnderlyingBufferedImage();
        final Graphics2D g2d = bufferedImage.createGraphics();

        g2d.setComposite(AlphaComposite.Clear);
        g2d.fillRect(0, 0, imageWidthToUse, imageHeightToUse);

        g2d.setComposite(AlphaComposite.SrcOver);

        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        f1 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.x;
        f2 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.y;
        f3 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.x;
        f4 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.y;
        f5 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.x;
        f6 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.y;
        f7 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.x;
        f8 += LINK_IMAGE_DIST_TO_CENTER - cubicCurveBounds.y;

        final CubicCurve2D offSetCubicCurve = new CubicCurve2D.Float(f1, f2, f3, f4, f5, f6, f7, f8);

        // Draw the highlight and shadow
        if (DRAW_HIGHTLIGHT_AND_SHADOW) {
            final Graphics2D sG2d = (Graphics2D) g2d.create();
            sG2d.translate(WIRE_SHADOW_X_OFFSET, WIRE_SHADOW_Y_OFFSET);
            sG2d.setColor(Color.BLUE.darker());
            sG2d.setStroke(new BasicStroke(WIRE_SHADOW_WIDTH, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
            sG2d.draw(offSetCubicCurve);

            final Graphics2D hG2d = (Graphics2D) g2d.create();
            hG2d.translate(WIRE_HIGHLIGHT_X_OFFSET, WIRE_HIGHLIGHT_Y_OFFSET);
            hG2d.setColor(Color.WHITE);
            hG2d.setStroke(
                    new BasicStroke(WIRE_HIGHLIGHT_WIDTH, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
            hG2d.draw(offSetCubicCurve);
        }

        g2d.setColor(Color.BLACK);
        g2d.setStroke(wireStroke);
        g2d.draw(offSetCubicCurve);

        g2d.setColor(Color.BLUE);
        g2d.setStroke(wireBodyStroke);
        g2d.draw(offSetCubicCurve);

        // For debugging, draw a green line around the outside of this image.
        if (DRAW_WIRE_BOUNDING_BOX) {
            g2d.setStroke(basicStrokeOfOne);
            g2d.setColor(Color.GREEN);
            g2d.drawRect(0, 0, imageWidthToUse - 1, imageHeightToUse - 1);
        }

        rectangle.x = cubicCurveBounds.x - LINK_IMAGE_DIST_TO_CENTER;
        rectangle.y = cubicCurveBounds.y - LINK_IMAGE_DIST_TO_CENTER;
        rectangle.width = imageWidthToUse;
        rectangle.height = imageHeightToUse;
    } catch (final Exception e) {
        final String msg = "Exception caught allocating buffered image: " + e.toString();
        log.error(msg, e);
    }
}

From source file:com.sdk.connector.chart.FrequencyDomainRenderer.java

/**
 * Creates a new demo application./* ww w  . j a  v  a2 s  .  com*/
 *
 * @param title  the frame title.
 */
public FrequencyDomainRenderer(String title, JPanel panel, String side, String type) {

    this.side = side;
    this.type = type;
    serie.setKey(side);

    dataset.addSeries(serie);
    JFreeChart chart = ChartFactory.createXYAreaChart(title,
            java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("frequency.xlabel"),
            java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("frequency.ylabel2"),
            dataset, PlotOrientation.VERTICAL, true, true, false);

    //        TextTitle t1 = new TextTitle( "Espectro de Frequncia Estimado (PSD)", new Font("SansSerif", Font.BOLD, 14)  );
    //        //TextTitle t2 = new TextTitle( "valores atualizados a cada potncia de 2", new Font("SansSerif", Font.PLAIN, 11)      );
    //        chart.addSubtitle(t1);
    chart.getRenderingHints().put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    chart.getRenderingHints().put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    chart.getRenderingHints().put(RenderingHints.KEY_ALPHA_INTERPOLATION,
            RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    chart.getRenderingHints().put(RenderingHints.KEY_FRACTIONALMETRICS,
            RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    chart.getRenderingHints().put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    chart.getRenderingHints().put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
    chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    chart.getRenderingHints().put(RenderingHints.KEY_TEXT_LCD_CONTRAST, 100);
    //chart.addSubtitle(t2);
    plot = (XYPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.WHITE);
    plot.setDomainGridlinePaint(Color.BLUE);
    plot.setRangeGridlinePaint(Color.CYAN);
    plot.getRenderer().setSeriesStroke(0, new BasicStroke(2.0f));
    plot.getRenderer().setSeriesStroke(1, new BasicStroke(2.0f));

    //plot.setRangePannable(true);
    plot.setForegroundAlpha(0.65f);

    //XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
    renderer = plot.getRenderer();
    renderer.setSeriesOutlinePaint(0, Color.BLACK);
    if (side.startsWith(
            java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("side.left"))) {
        renderer.setSeriesPaint(0, Color.BLUE);
    } else {
        renderer.setSeriesPaint(0, Color.RED);
    }
    //        renderer.setSeriesLinesVisible(0, true);
    //        renderer.setSeriesShapesVisible(0, false);
    //        renderer.setSeriesLinesVisible(1, true);
    //        renderer.setSeriesShapesVisible(1, false);
    plot.setRenderer(renderer);
    plot.setBackgroundPaint(Color.WHITE);
    plot.setDomainGridlinePaint(Color.BLACK);
    plot.setRangeGridlinePaint(Color.BLACK);
    plot.setForegroundAlpha(0.5f);

    Color color1 = new Color(0, 0, 0, 24);
    Color color2 = new Color(255, 255, 255, 24);

    GradientPaint gp = new GradientPaint(0, 0, color1, 0, 0, color2);
    plot.setBackgroundPaint(gp);

    final ValueAxis domainAxis = plot.getDomainAxis();
    domainAxis.setTickMarkPaint(Color.black);
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.0);
    NumberAxis numDomainAxis = (NumberAxis) plot.getDomainAxis();
    numDomainAxis.setAutoRangeIncludesZero(true);
    //
    //        final NumberAxis rangeAxis = new LogarithmicAxis("Log(y)");
    //
    //        plot.setRangeAxis(rangeAxis);
    final ValueAxis rangeAxis = plot.getRangeAxis();
    rangeAxis.setTickMarkPaint(Color.black);

    numRangeAxis = (NumberAxis) plot.getRangeAxis();
    numRangeAxis.setAutoRangeIncludesZero(true);

    vlfTarget.setLabel("VLF");
    vlfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9));
    vlfTarget.setLabelAnchor(RectangleAnchor.CENTER);
    vlfTarget.setLabelTextAnchor(TextAnchor.CENTER);
    vlfTarget.setPaint(new Color(0, 100, 255, 128));
    // plot.addRangeMarker(target, Layer.BACKGROUND);
    plot.addDomainMarker(vlfTarget, Layer.BACKGROUND);

    lfTarget.setLabel("LF");
    lfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9));
    lfTarget.setLabelAnchor(RectangleAnchor.CENTER);
    lfTarget.setLabelTextAnchor(TextAnchor.CENTER);
    lfTarget.setPaint(new Color(255, 255, 0, 128));
    // plot.addRangeMarker(target, Layer.BACKGROUND);
    plot.addDomainMarker(lfTarget, Layer.BACKGROUND);

    hfTarget.setLabel("HF");
    hfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9));
    hfTarget.setLabelAnchor(RectangleAnchor.CENTER);
    hfTarget.setLabelTextAnchor(TextAnchor.CENTER);
    hfTarget.setPaint(new Color(255, 0, 255, 128));
    // plot.addRangeMarker(target, Layer.BACKGROUND);
    plot.addDomainMarker(hfTarget, Layer.BACKGROUND);
    plot.setNoDataMessage(
            java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("message.wait"));

    chartPanel = new ChartPanel(chart);

    panel.setLayout(new GridLayout(0, 1));
    panel.add(chartPanel);
    panel.repaint();
    panel.revalidate();

}

From source file:org.jcurl.core.swing.RockLocationDisplayBase.java

public void exportPng(File dst) throws IOException {
    final BufferedImage img = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_ARGB);
    final Graphics2D g2 = (Graphics2D) img.getGraphics();
    {/*from  ww w.j a va 2  s  .c  o  m*/
        final Map hints = new HashMap();
        hints.put(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
        hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        hints.put(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
        hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
        hints.put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
        hints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        hints.put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
        hints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
        g2.addRenderingHints(hints);
    }
    this.paintComponent(g2);
    g2.dispose();
    if (!dst.getName().endsWith(".png"))
        dst = new File(dst.getName() + ".png");
    ImageIO.write(img, "png", dst);
}

From source file:com.piketec.jenkins.plugins.tpt.publisher.PieChart.java

/**
 * Render the pie chart with the given height
 * /*from   w  w w.  j a va2 s.  c o m*/
 * @param height
 *          The height of the resulting image
 * @return The pie chart rendered as an image
 */
public BufferedImage render(int height) {
    BufferedImage image = new BufferedImage(totalWidth, totalHeight, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    g2.scale(zoom, zoom);
    // fill background to white
    g2.setColor(Color.WHITE);
    g2.fill(new Rectangle(totalWidth, totalHeight));
    // prepare render hints
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
            RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2.setStroke(new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));

    // draw shadow image
    g2.drawImage(pieShadow.getImage(), 0, 0, pieShadow.getImageObserver());

    double start = 0;
    List<Arc2D> pies = new ArrayList<>();
    // pie segmente erzeugen und fuellen
    if (total == 0) {
        g2.setColor(BRIGHT_GRAY);
        g2.fillOval(centerX - radius, centerY - radius, 2 * radius, 2 * radius);
        g2.setColor(Color.WHITE);
        g2.drawOval(centerX - radius, centerY - radius, 2 * radius, 2 * radius);
    } else {
        for (Segment s : segments) {
            double portionDegrees = s.getPortion() / total;
            Arc2D pie = paintPieSegment(g2, start, portionDegrees, s.getColor());
            if (withSubSegments) {
                double smallRadius = radius * s.getSubSegmentRatio();
                paintPieSegment(g2, start, portionDegrees, smallRadius, s.getColor().darker());
            }
            start += portionDegrees;
            // portion degree jetzt noch als String (z.B. "17.3%" oder "20%" zusammenbauen)
            String p = String.format(Locale.ENGLISH, "%.1f", Math.rint(portionDegrees * 1000) / 10.0);
            p = removeSuffix(p, ".0"); // evtl. ".0" bei z.B. "25.0" abschneiden (-> "25")
            s.setPercent(p + "%");
            pies.add(pie);
        }
        // weissen Rahmen um die pie segmente zeichen
        g2.setColor(Color.WHITE);
        for (Arc2D pie : pies) {
            g2.draw(pie);
        }
    }
    // Legende zeichnen
    renderLegend(g2);
    // "xx%" Label direkt auf die pie segmente zeichen
    g2.setColor(Color.WHITE);
    float fontSize = 32f;
    g2.setFont(NORMALFONT.deriveFont(fontSize).deriveFont(Font.BOLD));
    start = 0;
    for (Segment s : segments) {
        if (s.getPortion() < 1E-6) {
            continue; // ignore segments with portions that are extremely small
        }
        double portionDegrees = s.getPortion() / total;
        double angle = start + portionDegrees / 2; // genau in der Mitte des Segments
        double xOffsetForCenteredTxt = 8 * s.getPercent().length(); // assume roughly 8px per char
        int x = (int) (centerX + 0.6 * radius * Math.sin(2 * Math.PI * angle) - xOffsetForCenteredTxt);
        int y = (int) (centerY - 0.6 * radius * Math.cos(2 * Math.PI * angle) + fontSize / 2);
        g2.drawString(s.getPercent(), x, y);
        start += portionDegrees;
    }
    return image;
}

From source file:eu.planets_project.tb.impl.chart.ExperimentChartServlet.java

/**
 * Process a GET request.//from w w w. j  a  va 2s. c om
 *
 * @param request  the request.
 * @param response  the response.
 *
 * @throws ServletException if there is a servlet related problem.
 * @throws IOException if there is an I/O problem.
 */
public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    OutputStream out = response.getOutputStream();
    try {
        String type = request.getParameter("type");
        String format = request.getParameter("format");
        String eid = request.getParameter("eid");

        JFreeChart chart = null;
        if ("pie".equalsIgnoreCase(type)) {
            chart = createPieChart();
        } else if ("bar".equalsIgnoreCase(type)) {
            chart = createBarChart();
        } else if ("time".equalsIgnoreCase(type)) {
            chart = createTimeSeriesChart();
        } else if ("exp".equalsIgnoreCase(type)) {
            chart = createXYChart(eid);
        } else if ("wall".equalsIgnoreCase(type)) {
            chart = createWallclockChart(eid);
        } else {
            chart = null;
        }
        // Render
        if (chart != null) {
            if ("svg".equalsIgnoreCase(format)) {
                response.setContentType("image/svg+xml");
                writeChartAsSVG(out, chart, 600, 500);
            } else {
                response.setContentType("image/png");
                // force aliasing of the rendered content..
                chart.getRenderingHints().put(RenderingHints.KEY_ANTIALIASING,
                        RenderingHints.VALUE_ANTIALIAS_ON);
                ChartUtilities.writeChartAsPNG(out, chart, 600, 500);
            }
        }
    } catch (Exception e) {
        System.err.println(e.toString());
        e.printStackTrace();
    } finally {
        out.close();
    }

}

From source file:org.apache.pdfbox.rendering.PageDrawer.java

/**
 * Sets high-quality rendering hints on the current Graphics2D.
 *///w w w . ja  va 2  s .  c  o  m
private void setRenderingHints() {
    graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
}

From source file:DrawShapes_2008.java

@Override
protected void paintComponent(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    // Paint a gradient for the sky
    GradientPaint background = new GradientPaint(0f, 0f, Color.GRAY.darker(), 0f, (float) getHeight(),
            Color.GRAY.brighter());
    g2d.setPaint(background);/*from w w w  . j ava  2 s . c  o  m*/
    g2d.fillRect(0, 0, getWidth(), 4 * getHeight() / 5);

    // Paint a gradient for the ground
    background = new GradientPaint(0f, (float) 4 * getHeight() / 5, Color.BLACK, 0f, (float) getHeight(),
            Color.GRAY.darker());
    g2d.setPaint(background);
    g2d.fillRect(0, 4 * getHeight() / 5, getWidth(), getHeight() / 5);

    // Enable anti-aliasing to get smooth outlines
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    // Iterate through all of the current shapes
    for (Shape shape : shapes) {
        // Get the bounds to compute the RadialGradient properties
        Rectangle rect = shape.getBounds();
        Point2D center = new Point2D.Float(rect.x + (float) rect.width / 2.0f,
                rect.y + (float) rect.height / 2.0f);
        float radius = (float) rect.width / 2.0f;
        float[] dist = { 0.1f, 0.9f };
        Color[] colors = { Color.WHITE, Color.BLACK };

        // Create and set a RadialGradient centered on the object,
        // going from white at the center to black at the edges
        RadialGradientPaint paint = new RadialGradientPaint(center, radius, dist, colors);
        g2d.setPaint(paint);

        // Finally, render our shape
        g2d.fill(shape);
    }
}

Example usage for java.awt RenderingHints KEY_ANTIALIASING

Introduction

Prototype

Document

Usage