private void onPlotClicked(PointF point) {

    // make sure the point lies within the graph area.  we use gridrect
    // because it accounts for margins and padding as well.
    if (plot.containsPoint(point.x, point.y)) {
      Number x = plot.getXVal(point);
      Number y = plot.getYVal(point);

      selection = null;
      double xDistance = 0;
      double yDistance = 0;

      // find the closest value to the selection:
      for (SeriesBundle<XYSeries, ? extends XYSeriesFormatter> sfPair :
          plot.getRegistry().getSeriesAndFormatterList()) {
        XYSeries series = sfPair.getSeries();
        for (int i = 0; i < series.size(); i++) {
          Number thisX = series.getX(i);
          Number thisY = series.getY(i);
          if (thisX != null && thisY != null) {
            double thisXDistance = Region.measure(x, thisX).doubleValue();
            double thisYDistance = Region.measure(y, thisY).doubleValue();
            if (selection == null) {
              selection = new Pair<>(i, series);
              xDistance = thisXDistance;
              yDistance = thisYDistance;
            } else if (thisXDistance < xDistance) {
              selection = new Pair<>(i, series);
              xDistance = thisXDistance;
              yDistance = thisYDistance;
            } else if (thisXDistance == xDistance
                && thisYDistance < yDistance
                && thisY.doubleValue() >= y.doubleValue()) {
              selection = new Pair<>(i, series);
              xDistance = thisXDistance;
              yDistance = thisYDistance;
            }
          }
        }
      }

    } else {
      // if the press was outside the graph area, deselect:
      selection = null;
    }

    if (selection == null) {
      selectionWidget.setText(NO_SELECTION_TXT);
    } else {
      selectionWidget.setText(
          "Selected: "
              + selection.second.getTitle()
              + " Value: "
              + selection.second.getY(selection.first));
    }
    plot.redraw();
  }
示例#2
0
 /**
  * Removes an existing value from the series.
  *
  * @param index the index in the series of the value to remove
  */
 public synchronized void remove(int index) {
   super.remove(index);
   double removedValue = mValue.remove(index);
   if (removedValue == mMinValue || removedValue == mMaxValue) {
     initRange();
   }
 }
  private void updatePlot(SeriesSize seriesSize) {

    // Remove all current series from each plot
    plot.clear();

    // Setup our Series with the selected number of elements
    series1 =
        new SimpleXYSeries(
            Arrays.asList(series1Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Us");
    series2 =
        new SimpleXYSeries(
            Arrays.asList(series2Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Them");

    plot.setDomainBoundaries(-1, series1.size(), BoundaryMode.FIXED);
    plot.setRangeUpperBoundary(
        SeriesUtils.minMax(series1, series2).getMaxY().doubleValue() + 1, BoundaryMode.FIXED);

    if (seriesSize != null) {
      switch (seriesSize) {
        case TEN:
          plot.setDomainStep(StepMode.INCREMENT_BY_VAL, 2);
          break;
        case TWENTY:
          plot.setDomainStep(StepMode.INCREMENT_BY_VAL, 4);
          break;
        case SIXTY:
          plot.setDomainStep(StepMode.INCREMENT_BY_VAL, 6);
          break;
      }
    }

    // add a new series' to the xyplot:
    if (series1CheckBox.isChecked()) plot.addSeries(series1, formatter1);
    if (series2CheckBox.isChecked()) plot.addSeries(series2, formatter2);

    // Setup the BarRenderer with our selected options
    MyBarRenderer renderer = plot.getRenderer(MyBarRenderer.class);
    renderer.setBarOrientation((BarRenderer.BarOrientation) spRenderStyle.getSelectedItem());
    final BarRenderer.BarGroupWidthMode barGroupWidthMode =
        (BarRenderer.BarGroupWidthMode) spWidthStyle.getSelectedItem();
    renderer.setBarGroupWidth(
        barGroupWidthMode,
        barGroupWidthMode == BarRenderer.BarGroupWidthMode.FIXED_WIDTH
            ? sbFixedWidth.getProgress()
            : sbVariableWidth.getProgress());

    if (BarRenderer.BarOrientation.STACKED.equals(spRenderStyle.getSelectedItem())) {
      plot.getInnerLimits().setMaxY(15);
    } else {
      plot.getInnerLimits().setMaxY(0);
    }

    plot.redraw();
  }
示例#4
0
 /** Removes all the values from the series. */
 public synchronized void clear() {
   super.clear();
   mValue.clear();
   initRange();
 }
示例#5
0
 /**
  * Adds a new value to the series.
  *
  * @param x the value for the X axis
  * @param y the value for the Y axis
  * @param value the value
  */
 public synchronized void add(double x, double y, double value) {
   super.add(x, y);
   mValue.add(value);
   updateRange(value);
 }
示例#6
0
 /**
  * @param x
  * @param numOfDays
  * @param y
  */
 public void add(Date x, long numOfDays, double y) {
   long days = x.getTime() / DAY + 1;
   for (int i = 0; i < numOfDays; i++) super.add(days + i, y);
 }
示例#7
0
 /**
  * Adds a new value to the series.
  *
  * @param x the date / time value for the X axis
  * @param y the value for the Y axis
  */
 public void add(Date x, double y) {
   super.add(x.getTime() / DAY + 1, y);
 }
  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;
  }
  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;
  }