Example usage for org.jfree.chart JFreeChart draw

List of usage examples for org.jfree.chart JFreeChart draw

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Introduction

In this page you can find the example usage for org.jfree.chart JFreeChart draw.

Prototype

public void draw(Graphics2D g2, Rectangle2D area, ChartRenderingInfo info)

Source Link

Document

Draws the chart on a Java 2D graphics device (such as the screen or a printer).

Usage

From source file:de.atomfrede.tools.evalutation.tools.plot.util.PlotUtil.java

public static void saveChartAsSVG(File file, JFreeChart chart, int width, int height) throws Exception {
    Writer out = null;/*from  ww w.  ja  v  a 2 s  .  com*/
    try {
        DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();

        String svgNS = "http://www.w3.org/2000/svg";
        org.w3c.dom.Document document = domImpl.createDocument(svgNS, "svg", null);

        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
        svgGenerator.getGeneratorContext().setPrecision(6);

        chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, width, height), null);

        boolean useCSS = true;
        out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
        svgGenerator.stream(out, useCSS);

    } catch (UnsupportedEncodingException enc) {
        log.error(enc);
    } catch (FileNotFoundException fnf) {
        log.error(fnf);
    } catch (SVGGraphics2DIOException e) {
        log.error(e);
    } catch (DOMException dome) {
        log.error(dome);
    } finally {
        if (out != null)
            out.close();
    }

}

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

/**
 * Save image to svg format//from   w  w w.j  a  v  a2s.  com
 * @param path the path including filename where the image is to be stored
 * @param chart TODO
 */
public static void saveImageSVG(String path, JFreeChart chart) {
    //First check that we have a valid chart
    if (chart != null) {
        //Create DOM objects
        DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
        Document document = domImpl.createDocument(null, "svg", null);

        //Create an instance of the SVG generator
        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);

        //Setting the precision apparently avoids a NullPointerException in Batik 1.5
        svgGenerator.getGeneratorContext().setPrecision(6);

        //Render chart into SVG Graphics2D impl.
        chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, 400, 300), null);

        //Write to file
        boolean useCSS = true;
        try {
            Writer out = new OutputStreamWriter(new FileOutputStream(new File(path)), "UTF-8");
            svgGenerator.stream(out, useCSS);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (SVGGraphics2DIOException e) {
            e.printStackTrace();
        }
    }

}

From source file:org.encog.workbench.util.graph.DocumentSVG.java

public static void saveSVG(File filename, JFreeChart chart, int width, int height) {
    try {// w ww. j a  va2  s  . c o  m
        // THE FOLLOWING CODE BASED ON THE EXAMPLE IN THE BATIK DOCUMENTATION...
        // Get a DOMImplementation
        DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
        // Create an instance of org.w3c.dom.Document
        Document document = domImpl.createDocument(null, "svg", null);
        // Create an instance of the SVG Generator
        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
        // set the precision to avoid a null pointer exception in Batik 1.5
        svgGenerator.getGeneratorContext().setPrecision(6);
        // Ask the chart to render into the SVG Graphics2D implementation
        chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, width, height), null);
        // Finally, stream out SVG to a file using UTF-8 character to
        // byte encoding
        boolean useCSS = true;
        Writer out = new OutputStreamWriter(new FileOutputStream(filename), "UTF-8");
        svgGenerator.stream(out, useCSS);
    } catch (IOException ex) {
        throw new WorkBenchError(ex);
    }
}

From source file:de.laures.cewolf.util.Renderer.java

/**
 * Handles rendering a chart as a SVG. Currently this method is synchronized
 * because of concurrency issues with JFreeChart.
 *
 * @param  baos//w  w w .ja  va2  s. com
 * @param  chart
 * @param  width
 * @param  height
 * @throws IOException
 */
private static synchronized void handleSVG(ByteArrayOutputStream baos, JFreeChart chart, int width, int height)
        throws IOException {
    OutputStreamWriter writer = new OutputStreamWriter(baos, "UTF-8");
    DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
    Document document = domImpl.createDocument("cewolf-svg", "svg", null);
    SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(document);
    ctx.setComment("Generated by Cewolf using JFreeChart and Apache Batik SVG Generator");
    SVGGraphics2D svgGenerator = new SVGGraphics2D(ctx, false);
    svgGenerator.setSVGCanvasSize(new Dimension(width, height));
    chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, width, height), null);
    svgGenerator.stream(writer, false);
    writer.close();
}

From source file:net.sf.jasperreports.charts.util.ChartUtil.java

/**
 * /*from w  w w . j  a v  a  2  s .c o m*/
 */
public static List<JRPrintImageAreaHyperlink> getImageAreaHyperlinks(JFreeChart chart,
        ChartHyperlinkProvider chartHyperlinkProvider, Graphics2D grx, Rectangle2D renderingArea)// throws JRException
{
    List<JRPrintImageAreaHyperlink> areaHyperlinks = null;

    if (chartHyperlinkProvider != null && chartHyperlinkProvider.hasHyperlinks()) {
        ChartRenderingInfo renderingInfo = new ChartRenderingInfo();

        if (grx == null) {
            chart.createBufferedImage((int) renderingArea.getWidth(), (int) renderingArea.getHeight(),
                    renderingInfo);
        } else {
            chart.draw(grx, renderingArea, renderingInfo);
        }

        EntityCollection entityCollection = renderingInfo.getEntityCollection();
        if (entityCollection != null && entityCollection.getEntityCount() > 0) {
            areaHyperlinks = new ArrayList<JRPrintImageAreaHyperlink>(entityCollection.getEntityCount());

            for (@SuppressWarnings("unchecked")
            Iterator<ChartEntity> it = entityCollection.iterator(); it.hasNext();) {
                ChartEntity entity = it.next();
                JRPrintHyperlink printHyperlink = chartHyperlinkProvider.getEntityHyperlink(entity);
                if (printHyperlink != null) {
                    JRPrintImageArea area = getImageArea(entity);

                    JRPrintImageAreaHyperlink areaHyperlink = new JRPrintImageAreaHyperlink();
                    areaHyperlink.setArea(area);
                    areaHyperlink.setHyperlink(printHyperlink);
                    areaHyperlinks.add(areaHyperlink);
                }
            }
        }
    }

    return areaHyperlinks;
}

From source file:net.sf.mzmine.chartbasics.graphicsexport.ChartExportUtil.java

/**
 * Paints a chart with scaling options/*from  w w  w. ja  v a 2  s  . c o m*/
 * 
 * @param chart
 * @param info
 * @param out
 * @param width
 * @param height
 * @param resolution
 * @return BufferedImage of a given chart with scaling to resolution
 * @throws IOException
 */
private static BufferedImage paintScaledChartToBufferedImage(JFreeChart chart, ChartRenderingInfo info,
        OutputStream out, int width, int height, int resolution, int bufferedIType) throws IOException {
    Args.nullNotPermitted(out, "out");
    Args.nullNotPermitted(chart, "chart");

    double scaleX = resolution / 72.0;
    double scaleY = resolution / 72.0;

    double desiredWidth = width * scaleX;
    double desiredHeight = height * scaleY;
    double defaultWidth = width;
    double defaultHeight = height;
    boolean scale = false;

    // get desired width and height from somewhere then...
    if ((scaleX != 1) || (scaleY != 1)) {
        scale = true;
    }

    BufferedImage image = new BufferedImage((int) desiredWidth, (int) desiredHeight, bufferedIType);
    Graphics2D g2 = image.createGraphics();

    if (scale) {
        AffineTransform saved = g2.getTransform();
        g2.transform(AffineTransform.getScaleInstance(scaleX, scaleY));
        chart.draw(g2, new Rectangle2D.Double(0, 0, defaultWidth, defaultHeight), info);
        g2.setTransform(saved);
        g2.dispose();
    } else {
        chart.draw(g2, new Rectangle2D.Double(0, 0, defaultWidth, defaultHeight), info);
    }
    return image;
}

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

public static void writeChartAsSVG(OutputStream outstream, JFreeChart chart, int width, int height)
        throws UnsupportedEncodingException, SVGGraphics2DIOException {

    Writer out = new OutputStreamWriter(outstream, "UTF-8");

    // THE FOLLOWING CODE BASED ON THE EXAMPLE IN THE BATIK DOCUMENTATION...
    // Get a DOMImplementation
    DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();

    // Create an instance of org.w3c.dom.Document
    Document document = domImpl.createDocument(null, "svg", null);

    // Create an instance of the SVG Generator
    SVGGraphics2D svgGenerator = new SVGGraphics2D(document);

    // set the precision to avoid a null pointer exception in Batik 1.5
    svgGenerator.getGeneratorContext().setPrecision(3);

    // Other opts:
    svgGenerator.getGeneratorContext().setEmbeddedFontsOn(true);
    //        svgGenerator.setFont( new Font("SansSerif", Font.PLAIN, 8) );

    // Ask the chart to render into the SVG Graphics2D implementation
    chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, width, height), null);

    // Finally, stream out SVG to a file using UTF-8 character to
    // byte encoding
    boolean useCSS = true;

    svgGenerator.stream(out, useCSS);//from  ww  w .  j  a  v  a 2  s  .co m

}

From source file:ca.sqlpower.wabit.report.ChartRenderer.java

public boolean renderReportContent(Graphics2D g, double width, double height, double scaleFactor, int pageIndex,
        boolean printing, SPVariableResolver variablesContext) {

    if (printing) {
        // If we're printing a streaming query, we have to
        // print whatever's displayed.
        if (this.chartCache == null || (this.chartCache != null && !this.chartCache.getQuery().isStreaming())) {
            refresh(false);/* w  ww .j  a  va2 s .c  o m*/
        }
    } else if (needsRefresh || this.chartCache == null) {
        // No chart loaded. Doing a refresh will trigger a new 
        // redraw later on.
        refresh();
        return false;
    }

    JFreeChart jFreeChart = null;
    try {
        jFreeChart = ChartSwingUtil.createChartFromQuery(chartCache);
        if (jFreeChart == null) {
            g.drawString("Loading...", 0, g.getFontMetrics().getHeight());
            return false;
        }

        Rectangle2D area = new Rectangle2D.Double(0, 0, width, height);

        // first pass establishes rendering info but draws nothing
        ChartRenderingInfo info = new ChartRenderingInfo();
        Graphics2D dummyGraphics = (Graphics2D) g.create(0, 0, 0, 0);
        jFreeChart.draw(dummyGraphics, area, info);
        dummyGraphics.dispose();

        // now for real
        Rectangle2D plotArea = info.getPlotInfo().getDataArea();
        ChartGradientPainter.paintChartGradient(g, area, (int) plotArea.getMaxY());
        jFreeChart.draw(g, area);

    } catch (Exception e) {
        logger.error("Error while rendering chart", e);
        g.drawString("Could not render chart: " + e.getMessage(), 0, g.getFontMetrics().getHeight());
    }
    return false;
}

From source file:com.datamyne.charts.AlmostThereDemo.java

/**
 * Creates PDf file.//from w  w  w  .  j  av a 2 s  .c o m
 * @param outputStream {@link OutputStream}.
 * @throws DocumentException
 * @throws IOException
 */
public void create(OutputStream outputStream) throws DocumentException, IOException {
    Document document = null;
    PdfWriter writer = null;

    try {
        //instantiate document and writer
        document = new Document();
        writer = PdfWriter.getInstance(document, outputStream);

        //open document
        document.open();

        //add image
        int width = 300;
        int height = 300;
        JFreeChart chart = getChart();

        //create PdfContentByte
        //if you work with this object, you write to
        //the top most layer, meaning anything behind
        //will be clipped
        PdfContentByte contentByte = writer.getDirectContent();
        //create PdfTemplate from PdfContentByte
        PdfTemplate template = contentByte.createTemplate(width, height);
        //create Graphics2D from PdfTemplate
        Graphics2D g2 = template.createGraphics(width, height, new DefaultFontMapper());
        //setup the drawing area
        Rectangle2D r2D = new Rectangle2D.Double(0, 0, width, height);
        //pass the Graphics2D and drawing area to JFreeChart
        chart.draw(g2, r2D, null);
        g2.dispose(); //always dispose this
        //add the PdfTemplate to the PdfContentByte
        contentByte.addTemplate(template, 0, 300);

        //release resources
        document.close();
        document = null;

        writer.close();
        writer = null;
    } catch (DocumentException de) {
        throw de;
    } finally {
        //release resources
        if (null != document) {
            try {
                document.close();
            } catch (Exception ex) {
            }
        }

        if (null != writer) {
            try {
                writer.close();
            } catch (Exception ex) {
            }
        }
    }
}

From source file:com.datamyne.charts.FinallyDemo.java

/**
 * Creates PDf file.//ww  w . java2s  .co m
 * @param outputStream {@link OutputStream}.
 * @throws DocumentException
 * @throws IOException
 */
public void create(OutputStream outputStream) throws DocumentException, IOException {
    Document document = null;
    PdfWriter writer = null;

    try {
        //instantiate document and writer
        document = new Document();
        writer = PdfWriter.getInstance(document, outputStream);

        //open document
        document.open();

        //get dummy text
        String text = getText();
        //create text font
        com.itextpdf.text.Font font = new com.itextpdf.text.Font(FontFamily.TIMES_ROMAN, 10.0f);

        //add text before
        document.add(new Paragraph(new Chunk(text, font)));

        //add image
        int width = 300;
        int height = 300;
        JFreeChart chart = getChart();

        //create PdfContentByte
        //if you work with this object, you write to
        //the top most layer, meaning anything behind
        //will be clipped
        PdfContentByte contentByte = writer.getDirectContent();
        //create PdfTemplate from PdfContentByte
        PdfTemplate template = contentByte.createTemplate(width, height);
        //create Graphics2D from PdfTemplate
        Graphics2D g2 = template.createGraphics(width, height, new DefaultFontMapper());
        //setup the drawing area
        Rectangle2D r2D = new Rectangle2D.Double(0, 0, width, height);
        //pass the Graphics2D and drawing area to JFreeChart
        chart.draw(g2, r2D, null);
        g2.dispose(); //always dispose this

        //create Image from PdfTemplate
        Image image = Image.getInstance(template);
        document.add(image);

        //add text after
        document.add(new Paragraph(new Chunk(text, font)));

        //release resources
        document.close();
        document = null;

        writer.close();
        writer = null;
    } catch (DocumentException de) {
        throw de;
    } finally {
        //release resources
        if (null != document) {
            try {
                document.close();
            } catch (Exception ex) {
            }
        }

        if (null != writer) {
            try {
                writer.close();
            } catch (Exception ex) {
            }
        }
    }
}