Example usage for org.jfree.chart ChartUtilities writeChartAsJPEG

Introduction

In this page you can find the example usage for org.jfree.chart ChartUtilities writeChartAsJPEG.

Prototype

public static void writeChartAsJPEG(OutputStream out, JFreeChart chart, int width, int height)
        throws IOException 

Source Link

Document

Writes a chart to an output stream in JPEG format.

Usage

From source file:com.ohalo.cn.awt.JFreeChartTest3.java

public static void main(String[] args) throws Exception {
    JFreeChart chart = ChartFactory.createPieChart("???", getDataset(), true, true,
            false);//from w  w w.  j  a v a  2 s. c  om
    chart.setTitle(new TextTitle("??", new Font("", Font.BOLD + Font.ITALIC, 20)));

    LegendTitle legend = chart.getLegend(0);// Legend
    legend.setItemFont(new Font("", Font.BOLD, 14));
    PiePlot plot = (PiePlot) chart.getPlot();// Plot
    plot.setLabelFont(new Font("", Font.BOLD, 16));

    OutputStream os = new FileOutputStream("company.jpeg");// ??FileOutputStream?
    ChartUtilities.writeChartAsJPEG(os, chart, 1000, 800);
    // ??applicationchart??JPEG?3?4?

    os.close();// ?
}

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From source file:org.exist.xquery.modules.jfreechart.render.JPGrenderer.java

@Override
public void render(JFreeChart chart, Configuration config, OutputStream os) throws IOException {
    ChartUtilities.writeChartAsJPEG(os, chart, config.getImageWidth(), config.getImageHeight());
}

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From source file:net.bioclipse.model.ImageWriter.java

public static void saveImageJPG(String path, JFreeChart chart) throws IOException {
    FileOutputStream fos = new FileOutputStream(path);
    ChartUtilities.writeChartAsJPEG(fos, chart, 640, 480);
    fos.close();/*from w  w w .  j  a v  a  2  s .  co m*/
}

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From source file:edu.cudenver.bios.chartsvc.representation.ChartImageRepresentation.java

/**
 * Called internally by Restlet library to write the image as the HTTP
 * response.//from w  w  w. j a v  a 2 s  .co m
 * @param out output stream
 */
@Get
public void write(OutputStream out) throws IOException {
    ChartUtilities.writeChartAsJPEG(out, chart, width, height);
}

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From source file:net.mindengine.oculus.frontend.web.controllers.project.TestJFreeController.java

@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
    DefaultPieDataset pieDataset = new DefaultPieDataset();
    pieDataset.setValue("A", new Integer(75));
    pieDataset.setValue("B", new Integer(10));
    pieDataset.setValue("C", new Integer(10));
    pieDataset.setValue("D", new Integer(5));

    JFreeChart chart = ChartFactory.createPieChart("CSC408 Mark Distribution", // Title
            pieDataset, // Dataset
            true, // Show legend
            true, // Use tooltips
            false // Configure chart to generate URLs?
    );/*  ww w. ja v a  2 s  . co  m*/

    response.setCharacterEncoding("image/jpeg");
    response.setStatus(200);
    ChartUtilities.writeChartAsJPEG(response.getOutputStream(), chart, 500, 400);
    return null;
}

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From source file:org.openmrs.web.servlet.AbstractGraphServlet.java

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {//from  ww w.  j a  v a 2  s  .  c  om
        // Set default values
        Integer width = Integer.valueOf(500);
        Integer height = Integer.valueOf(300);
        String mimeType = PNG_MIME_TYPE;

        // Retrieve custom values
        try {
            width = Integer.parseInt(request.getParameter("width"));
        } catch (Exception e) {
            log.error("Error during width parseInt", e);
        }

        try {
            height = Integer.parseInt(request.getParameter("height"));
        } catch (Exception e) {
            log.error("Error during height parseInt", e);
        }

        if (request.getParameter("mimeType") != null) {
            mimeType = request.getParameter("mimeType");
        }

        JFreeChart chart = createChart(request, response);

        // Modify response to disable caching
        response.setHeader("Pragma", "No-cache");
        response.setDateHeader("Expires", 0);
        response.setHeader("Cache-Control", "no-cache");

        // Write chart out to response as image 
        try {
            if (JPG_MIME_TYPE.equalsIgnoreCase(mimeType)) {
                response.setContentType(JPG_MIME_TYPE);
                ChartUtilities.writeChartAsJPEG(response.getOutputStream(), chart, width, height);
            } else if (PNG_MIME_TYPE.equalsIgnoreCase(mimeType)) {
                response.setContentType(PNG_MIME_TYPE);
                ChartUtilities.writeChartAsPNG(response.getOutputStream(), chart, width, height);
            } else {
                // Throw exception: unsupported mime type
            }
        } catch (IOException e) {
            log.error(e);
        }

    }
    // Add error handling above and remove this try/catch 
    catch (Exception e) {
        log.error(e);
    }
}

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From source file:opensonata.dataDisplays.BaselineImage.java

public void processFile(String inFilename, String outFilename, String userTitle) throws IOException {

    FileOutputStream out = new FileOutputStream(outFilename);

    NssBaseline nssBaseline = new NssBaseline();
    try {/*from   w  w w .ja  v  a  2  s  .com*/

        nssBaseline.openFile(inFilename);
        nssBaseline.readAllData();

        JFreeChart chart = null;
        final int widthPix = 539;
        final int heightPix = 250;

        chart = createChart(inFilename, userTitle, nssBaseline);
        if (chart != null) {
            ChartUtilities.writeChartAsJPEG(out, chart, widthPix, heightPix);
        }
    } catch (Exception e) {
        System.err.println("BaselineImage: " + e + " for input file: " + inFilename);
    } finally {
        out.close();
        nssBaseline.closeFile();
    }
}

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From source file:org.projectforge.web.wicket.JFreeChartImage.java

@SuppressWarnings("serial")
@Override//from  w  ww. ja  v  a 2s.com
protected AbstractResource getImageResource() {
    final String format = this.imageType == JFreeChartImageType.JPEG ? "jpg" : "png";
    return new DynamicImageResource() {

        @Override
        protected byte[] getImageData(final Attributes attributes) {
            try {
                final JFreeChart chart = (JFreeChart) getDefaultModelObject();
                final ByteArrayOutputStream baos = new ByteArrayOutputStream();
                if (imageType == JFreeChartImageType.JPEG) {
                    ChartUtilities.writeChartAsJPEG(baos, chart, width, height);
                } else {
                    ChartUtilities.writeChartAsPNG(baos, chart, width, height);
                }
                final byte[] ba = baos.toByteArray();
                return ba;
            } catch (final IOException ex) {
                log.error(ex.getMessage(), ex);
                return null;
            }
        }

        @Override
        protected void configureResponse(final ResourceResponse response, final Attributes attributes) {
            super.configureResponse(response, attributes);

            // if (isCacheable() == false) {
            response.setCacheDuration(Duration.NONE);
            response.setCacheScope(CacheScope.PRIVATE);
            // }
        }
    };
}

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From source file:net.sf.jsfcomp.chartcreator.Chartlet.java

private void writeChart(HttpServletResponse response, JFreeChart chart, ChartData chartData)
        throws IOException {
    OutputStream stream = response.getOutputStream();
    response.setContentType(ChartUtils.resolveContentType(chartData.getOutput()));

    if (chartData.getOutput().equalsIgnoreCase("png"))
        ChartUtilities.writeChartAsPNG(stream, chart, chartData.getWidth(), chartData.getHeight());
    else if (chartData.getOutput().equalsIgnoreCase("jpeg"))
        ChartUtilities.writeChartAsJPEG(stream, chart, chartData.getWidth(), chartData.getHeight());

    stream.flush();/*from ww w . j av a2s  .  c o m*/
    stream.close();
}

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From source file:com.liferay.portlet.polls.action.ViewChartAction.java

@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    try {/* w  w w  .  j ava 2s.  c om*/
        ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

        long questionId = ParamUtil.getLong(request, "questionId");

        String chartType = ParamUtil.getString(request, "chartType", "pie");

        CategoryDataset dataset = PollsUtil.getVotesDataset(questionId);

        String chartName = themeDisplay.translate("vote-results");
        String xName = themeDisplay.translate("choice");
        String yName = themeDisplay.translate("votes");

        JFreeChart chart = null;

        if (chartType.equals("area")) {
            chart = ChartFactory.createAreaChart(chartName, xName, yName, dataset, PlotOrientation.VERTICAL,
                    true, false, false);
        } else if (chartType.equals("horizontal_bar")) {
            chart = ChartFactory.createBarChart(chartName, xName, yName, dataset, PlotOrientation.HORIZONTAL,
                    true, false, false);
        } else if (chartType.equals("line")) {
            chart = ChartFactory.createLineChart(chartName, xName, yName, dataset, PlotOrientation.VERTICAL,
                    true, false, false);
        } else if (chartType.equals("vertical_bar")) {
            chart = ChartFactory.createBarChart(chartName, xName, yName, dataset, PlotOrientation.VERTICAL,
                    true, false, false);
        } else {
            PieDataset pieData = DatasetUtilities.createPieDatasetForRow(dataset, 0);

            chart = ChartFactory.createPieChart(chartName, pieData, true, false, false);
        }

        response.setContentType(ContentTypes.IMAGE_JPEG);

        OutputStream os = response.getOutputStream();

        ChartUtilities.writeChartAsJPEG(os, chart, 400, 400);

        return null;
    } catch (Exception e) {
        PortalUtil.sendError(e, request, response);

        return null;
    }
}

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