Пример #1
0
  public Chart(String title, String timeAxis, String valueAxis, TimeSeries data) {
    try {
      // Build the datasets
      dataset.addSeries(data);

      // Create the chart
      JFreeChart chart =
          ChartFactory.createTimeSeriesChart(
              title, timeAxis, valueAxis, dataset, true, true, false);

      // Setup the appearance of the chart
      chart.setBackgroundPaint(Color.white);
      XYPlot plot = chart.getXYPlot();
      plot.setBackgroundPaint(Color.lightGray);
      plot.setDomainGridlinePaint(Color.white);
      plot.setRangeGridlinePaint(Color.white);
      plot.setAxisOffset(new RectangleInsets(UnitType.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
      plot.setDomainCrosshairVisible(true);
      plot.setRangeCrosshairVisible(true);

      // Tell the chart how we would like dates to read
      DateAxis axis = (DateAxis) plot.getDomainAxis();
      axis.setDateFormatOverride(new SimpleDateFormat("EEE HH"));

      this.add(new ChartPanel(chart));
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
 private static JFreeChart createChart(TableXYDataset tablexydataset) {
   DateAxis dateaxis = new DateAxis("Date");
   dateaxis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);
   dateaxis.setLowerMargin(0.01D);
   dateaxis.setUpperMargin(0.01D);
   NumberAxis numberaxis = new NumberAxis("Count");
   numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
   numberaxis.setUpperMargin(0.10000000000000001D);
   StackedXYBarRenderer stackedxybarrenderer = new StackedXYBarRenderer(0.14999999999999999D);
   stackedxybarrenderer.setDrawBarOutline(false);
   stackedxybarrenderer.setBaseItemLabelsVisible(true);
   stackedxybarrenderer.setBaseItemLabelGenerator(new StandardXYItemLabelGenerator());
   stackedxybarrenderer.setBasePositiveItemLabelPosition(
       new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER));
   stackedxybarrenderer.setBaseToolTipGenerator(
       new StandardXYToolTipGenerator(
           "{0} : {1} = {2}", new SimpleDateFormat("yyyy"), new DecimalFormat("0")));
   XYPlot xyplot = new XYPlot(tablexydataset, dateaxis, numberaxis, stackedxybarrenderer);
   JFreeChart jfreechart = new JFreeChart("Holes-In-One / Double Eagles", xyplot);
   jfreechart.removeLegend();
   jfreechart.addSubtitle(new TextTitle("PGA Tour, 1983 to 2003"));
   TextTitle texttitle =
       new TextTitle(
           "http://www.golfdigest.com/majors/masters/index.ssf?/majors/masters/gw20040402albatross.html",
           new Font("Dialog", 0, 8));
   jfreechart.addSubtitle(texttitle);
   jfreechart.setTextAntiAlias(RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT);
   LegendTitle legendtitle = new LegendTitle(xyplot);
   legendtitle.setBackgroundPaint(Color.white);
   legendtitle.setFrame(new BlockBorder());
   legendtitle.setPosition(RectangleEdge.BOTTOM);
   jfreechart.addSubtitle(legendtitle);
   return jfreechart;
 }
Пример #3
0
  private JFreeChart buildChart(TimeSeriesCollection dataset, String title, boolean endPoints) {
    // Create the chart
    JFreeChart chart =
        ChartFactory.createTimeSeriesChart(title, "Date", "Price", dataset, true, true, false);

    // Display each series in the chart with its point shape in the legend
    LegendTitle sl = chart.getLegend();
    // sl.setDisplaySeriesShapes(true);

    // Setup the appearance of the chart
    chart.setBackgroundPaint(Color.white);
    XYPlot plot = chart.getXYPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);
    plot.setAxisOffset(new RectangleInsets(UnitType.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);

    // Display data points or just the lines?
    if (endPoints) {
      XYItemRenderer renderer = plot.getRenderer();
      if (renderer instanceof StandardXYItemRenderer) {
        StandardXYItemRenderer rr = (StandardXYItemRenderer) renderer;
        // rr.setPlotShapes(true);
        rr.setShapesFilled(true);
        rr.setItemLabelsVisible(true);
      }
    }

    // Tell the chart how we would like dates to read
    DateAxis axis = (DateAxis) plot.getDomainAxis();
    axis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy"));
    return chart;
  }
  public String generateXYAreaChart(
      HttpSession session, PrintWriter pw, String courseId, int studentId) {
    String filename = null;
    /* int groupId=0;
    if (groupName.equals("All")){
        groupId=0;
    }else{
         groupId = studStatisticBean.getGroupIdByName(groupName);
    }*/

    try {
      //  Retrieve list of WebHits for each section and populate a TableXYDataset
      StudentsConceptChartDataSet cDataSet =
          new StudentsConceptChartDataSet(studStatisticBean, courseId, studentId);
      // cDataSet.setStudentStatisticBeanIdRef(studStatisticBean);
      ArrayList sections = cDataSet.getSections();
      Iterator sectionIter = sections.iterator();
      DefaultTableXYDataset dataset = new DefaultTableXYDataset();
      while (sectionIter.hasNext()) {
        String section = (String) sectionIter.next();
        ArrayList list = cDataSet.getDataByHitConcept(section);
        XYSeries dataSeries = new XYSeries(section, true, false);
        Iterator webHitIter = list.iterator();
        while (webHitIter.hasNext()) {
          StudentsConceptHit cHit = (StudentsConceptHit) webHitIter.next();
          dataSeries.add(cHit.getOrdNumb(), cHit.getHitDegree());
        }
        dataset.addSeries(dataSeries);
      }

      //  Throw a custom NoDataException if there is no data
      if (dataset.getItemCount() == 0) {
        System.out.println("No data has been found");
        throw new NoDataException();
      }

      //  Create tooltip and URL generators
      SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy", Locale.UK);
      StandardXYToolTipGenerator ttg =
          new StandardXYToolTipGenerator(
              StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, sdf, NumberFormat.getInstance());
      TimeSeriesURLGenerator urlg =
          new TimeSeriesURLGenerator(sdf, "bar_chart.jsp", "series", "hitDate");

      //  Create the X-Axis
      DateAxis xAxis = new DateAxis(null);
      xAxis.setLowerMargin(0.0);
      xAxis.setUpperMargin(0.0);

      //  Create the X-Axis
      NumberAxis yAxis = new NumberAxis(null);
      yAxis.setAutoRangeIncludesZero(true);

      //  Create the renderer
      StackedXYAreaRenderer renderer =
          new StackedXYAreaRenderer(XYAreaRenderer.AREA_AND_SHAPES, ttg, urlg);
      renderer.setSeriesPaint(0, new Color(255, 255, 180));
      renderer.setSeriesPaint(1, new Color(206, 230, 255));
      renderer.setSeriesPaint(2, new Color(255, 230, 230));
      renderer.setSeriesPaint(3, new Color(206, 255, 206));
      renderer.setShapePaint(Color.gray);
      renderer.setShapeStroke(new BasicStroke(0.5f));
      renderer.setShape(new Ellipse2D.Double(-3, -3, 6, 6));
      renderer.setOutline(true);

      //  Create the plot
      XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
      plot.setForegroundAlpha(0.65f);

      //  Reconfigure Y-Axis so the auto-range knows that the data is stacked
      yAxis.configure();

      //  Create the chart
      JFreeChart chart = new JFreeChart(null, JFreeChart.DEFAULT_TITLE_FONT, plot, true);
      chart.setBackgroundPaint(java.awt.Color.white);

      //  Write the chart image to the temporary directory
      ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
      filename = ServletUtilities.saveChartAsPNG(chart, 600, 400, info, session);

      //  Write the image map to the PrintWriter
      ChartUtilities.writeImageMap(pw, filename, info);
      pw.flush();

    } catch (NoDataException e) {
      System.out.println(e.toString());
      filename = "public_nodata_500x300.png";
    } catch (Exception e) {
      System.out.println("Exception - " + e.toString());
      e.printStackTrace(System.out);
      filename = "public_error_500x300.png";
    }
    return filename;
  }