/**
   * precondition : 'attribute' MUST contain number values only
   *
   * @param cases
   * @param attribute
   * @return DefaultXYDataset with all values of 'attribute' against event numbers or timestamps.
   */
  private XYSeriesCollection getDataAttributes(
      String[] attributes, boolean byTime, double timesize) {
    XYSeriesCollection result = new XYSeriesCollection();
    for (int index = 0; index < attributes.length; index++) {
      String attribute = attributes[index];
      Integer i = 0;
      XYSeries row = new XYSeries(attribute);
      for (ProcessInstance pi : mylog.getInstances()) {
        Integer x = 0; // count event number
        Date begin = pi.getAuditTrailEntries().first().getTimestamp(); // starting
        // time
        // of
        // process
        // instance

        for (AuditTrailEntry ate : pi.getListOfATEs()) {
          if (ate.getAttributes().containsKey(attribute)) {
            Double val;
            val = Double.valueOf(ate.getAttributes().get(attribute));
            if (byTime) {
              row.add(timediff(begin, ate.getTimestamp()) / timesize, val.doubleValue());
            } else {
              row.add(x.doubleValue(), val.doubleValue());
            }
          }
          x++; // event number in case
        }
        i++; // case number
      }
      result.addSeries(row);
    }
    return result;
  }
Example #2
0
 /** Creates fundamental diagram chart. */
 private JFreeChart makeFDChart() {
   updateFDSeries();
   XYSeriesCollection dataset = new XYSeriesCollection();
   dataset.addSeries(ffFD);
   dataset.addSeries(cFD);
   dataset.addSeries(cdFD);
   JFreeChart chart =
       ChartFactory.createXYLineChart(
           null, // chart title
           "Density (vpm)", // x axis label
           "Flow (vph)", // y axis label
           dataset, // data
           PlotOrientation.VERTICAL,
           false, // include legend
           false, // tooltips
           false // urls
           );
   XYPlot plot = (XYPlot) chart.getPlot();
   plot.getRenderer().setSeriesPaint(0, Color.GREEN);
   plot.getRenderer().setSeriesPaint(1, Color.RED);
   plot.getRenderer().setSeriesPaint(2, Color.BLUE);
   plot.getRenderer().setStroke(new BasicStroke(2));
   return chart;
 }
 private IntervalXYDataset getHistrogrammedDataAttributes(
     String[] attributes, long barsize, long timesize) {
   IntervalXYDataset dataset = null;
   if (no_intervals) {
     dataset = new XYSeriesCollection();
   } else {
     dataset = new YIntervalSeriesCollection();
   }
   for (int index = 0; index < attributes.length; index++) {
     Histogram histogram = new Histogram(barsize);
     String attribute = attributes[index];
     for (ProcessInstance pi : mylog.getInstances()) {
       Date begin;
       try {
         begin = pi.getAuditTrailEntryList().get(0).getTimestamp();
       } catch (Exception e) {
         Message.add(e.getMessage(), Message.ERROR);
         return null;
       } // starting time of process instance
       int j = 0;
       for (AuditTrailEntry ate : pi.getListOfATEs()) {
         if (ate.getAttributes().containsKey(attribute)) {
           Double val;
           val = Double.valueOf(ate.getAttributes().get(attribute));
           if (xbox.getSelectedIndex() == 2) {
             histogram.addValue(j, val);
           }
           if (xbox.getSelectedIndex() == 3) {
             histogram.addValue(timediff(begin, ate.getTimestamp()), val);
           }
           j++;
         }
       }
     }
     if (no_intervals) {
       ((XYSeriesCollection) dataset).addSeries(histogram.getXYSeries(attribute, timesize));
     } else {
       ((YIntervalSeriesCollection) dataset)
           .addSeries(histogram.getYIntervalSeries(attribute, timesize));
     }
   }
   return dataset;
 }
  public String generateXYChart(
      String section, HttpSession session, PrintWriter pw, String courseId, int studentId) {
    /*int groupId=0;
                if (groupName.equals("All")){
                    groupId=0;
                }else{
                     groupId = studStatisticBean.getGroupIdByName(groupName);
    }*/
    String filename = null;
    try {
      //  Retrieve list of WebHits
      StudentsConceptChartDataSet cDataSet =
          new StudentsConceptChartDataSet(studStatisticBean, courseId, studentId);
      ArrayList list = cDataSet.getDataByHitConcept(section);
      //  Throw a custom NoDataException if there is no data
      if (list.size() == 0) {
        System.out.println("No data has been found");
        throw new NoDataException();
      }
      //  Create and populate an XYSeries Collection
      XYSeries dataSeries = new XYSeries("Students progress line");
      Iterator iter = list.listIterator();
      while (iter.hasNext()) {
        StudentsConceptHit ch = (StudentsConceptHit) iter.next();
        dataSeries.add(ch.getOrdNumb(), ch.getHitDegree());
      }
      XYSeriesCollection xyDataset = new XYSeriesCollection(dataSeries);

      NumberFormat nf = NumberFormat.getIntegerInstance();
      NumberFormat nf2 = NumberFormat.getInstance();

      String cTitle = null;
      // StandardXYToolTipGenerator ttg = new
      // StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,nf,nf2);
      CustomXYToolTipGenerator ttg = new CustomXYToolTipGenerator();
      ttg.addToolTipSeries(cDataSet.getConceptNames());
      StandardXYURLGenerator sxyUrlGen =
          new StandardXYURLGenerator("#", xyDataset.getSeriesName(0), "PassedConceptOrdNum");

      ValueAxis ordNumAxis = new NumberAxis("Concept ordinal number");
      NumberAxis valueAxis = new NumberAxis("Current knowledge");
      // valueAxis.setAutoRangeIncludesZero(true);
      valueAxis.setRange(0.0, 6.0); // override default
      ordNumAxis.setAutoRange(true);
      ordNumAxis.setLowerMargin(0.0);

      StandardXYItemRenderer renderer =
          new StandardXYItemRenderer(
              StandardXYItemRenderer.LINES + StandardXYItemRenderer.SHAPES, ttg, sxyUrlGen);
      Marker marker = new ValueMarker(1.50); // /
      Marker marker2 = new ValueMarker(2.50);
      Marker marker3 = new ValueMarker(3.50);
      Marker marker4 = new ValueMarker(4.50);
      Marker marker5 = new ValueMarker(5.00);

      renderer.setShapesFilled(true);
      XYPlot plot = new XYPlot(xyDataset, ordNumAxis, valueAxis, renderer);

      plot.addRangeMarker(marker);
      plot.addRangeMarker(marker2);
      plot.addRangeMarker(marker3);
      plot.addRangeMarker(marker4);
      plot.addRangeMarker(marker5);

      XYTextAnnotation xyBad = new XYTextAnnotation("Bad", 1, 1);
      xyBad.setX(0.2);
      xyBad.setY(0.75);
      XYTextAnnotation xyNotBad = new XYTextAnnotation("Not Bad", 1, 1);
      xyNotBad.setX(0.2);
      xyNotBad.setY(2);
      XYTextAnnotation xyGood = new XYTextAnnotation("Good", 1, 1);
      xyGood.setX(0.2);
      xyGood.setY(3);
      XYTextAnnotation xyVeryGood = new XYTextAnnotation("Very Good", 1, 1);
      xyVeryGood.setX(0.2);
      xyVeryGood.setY(4);
      XYTextAnnotation xyExcellent = new XYTextAnnotation("Excellent", 1, 1);
      xyExcellent.setX(0.2);
      xyExcellent.setY(4.75);

      XYTextAnnotation xyExpert = new XYTextAnnotation("Expert", 1, 1);
      xyExpert.setX(0.2);
      xyExpert.setY(5.25);

      plot.addAnnotation(xyBad);
      plot.addAnnotation(xyNotBad);
      plot.addAnnotation(xyGood);
      plot.addAnnotation(xyVeryGood);
      plot.addAnnotation(xyExcellent);
      plot.addAnnotation(xyExpert);

      JFreeChart chart = new JFreeChart("", 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;
  }