/*
   * Metodo que aplica o filtro
   */
  public static void Apply(BufferedImage image, String savePath) {
    // Chamada do metodo que gera os dados do histograma
    GetData(image);

    // Dataset que gera o grafico
    DefaultCategoryDataset ds = new DefaultCategoryDataset();

    // Loop que percorre o array de dados do histograma
    for (int k = 0; k < data.length; k++) {
      // Adiciona o valor ao dataset
      ds.setValue(data[k], "Imagem", Integer.toString(data[k]));
    }

    // Gera o grafico
    JFreeChart grafico =
        ChartFactory.createLineChart(
            "Histograma",
            "Tons de cinza",
            "Valor",
            ds,
            PlotOrientation.VERTICAL,
            true,
            true,
            false);

    // Salva o grafico em um arquivo de png
    try {
      OutputStream arquivo = new FileOutputStream(savePath);
      ChartUtilities.writeChartAsPNG(arquivo, grafico, 550, 400);
      arquivo.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
 private JFreeChart formChart() {
   DefaultCategoryDataset data = new DefaultCategoryDataset();
   String dateString = request.getParameter("date");
   Date date = null;
   if (dateString != null && (!dateString.equals("null"))) {
     date = DayTransformer.transform(dateString);
   } else {
     date = new Date(System.currentTimeMillis());
   }
   String[][] storeSellingDis =
       saleperformanceManage.getStoreSellingDis(DayTransformer.transformToMonth(date));
   for (int i = 0; i < storeSellingDis.length; i++) {
     data.setValue(
         Double.parseDouble(storeSellingDis[i][1]), storeSellingDis[i][0], storeSellingDis[i][0]);
   }
   JFreeChart barChart =
       ChartFactory.createBarChart(
           "店铺销售分布图", "店铺名称", "销售额", data, PlotOrientation.VERTICAL, true, true, false);
   CategoryPlot plot = (CategoryPlot) barChart.getCategoryPlot();
   BarRenderer renderer = (BarRenderer) plot.getRenderer();
   // 显示条目标签
   renderer.setBaseItemLabelsVisible(true);
   // 设置条目标签生成器,在JFreeChart1.0.6之前可以通过renderer.setItemLabelGenerator(CategoryItemLabelGenerator
   // generator)方法实现,但是从版本1.0.6开始有下面方法代替
   renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
   // 设置条目标签显示的位置,outline表示在条目区域外,baseline_center表示基于基线且居中
   renderer.setBasePositiveItemLabelPosition(
       new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER));
   barChart.getLegend().setItemFont(new Font("黑体", Font.BOLD, 15)); // 设置引用标签字体
   barChart.getTitle().setFont(new Font("华文行楷", Font.BOLD, 32));
   return barChart;
 }
  private void btnPictorialViewActionPerformed(
      java.awt.event.ActionEvent evt) { // GEN-FIRST:event_btnPictorialViewActionPerformed
    // TODO add your handling code here:
    DefaultCategoryDataset categoryDataset = new DefaultCategoryDataset();

    for (Product product : supplier.getProductCatalog().getProductCatalog()) {
      categoryDataset.setValue(product.getSoldQuantity(), "Units", product.getProdName());
    }
    JFreeChart freeChart =
        ChartFactory.createBarChart(
            "Sales Report",
            "Product",
            "Units",
            categoryDataset,
            PlotOrientation.VERTICAL,
            false,
            true,
            false);

    CategoryPlot categoryPlot = freeChart.getCategoryPlot();
    categoryPlot.setRangeGridlinePaint(Color.BLACK);
    ChartFrame cf = new ChartFrame("Sales Report", freeChart);
    cf.setVisible(true);
    cf.setSize(450, 300);
  } // GEN-LAST:event_btnPictorialViewActionPerformed
  public NetflowTotalByIPChart(String title, String filename) {

    TotalsCSVReader reader =
        new TotalsCSVReader(filename, TotalsCSVReader.IP, TotalsCSVReader.OCTETS);
    HashMap<String, Integer> mappeddata = reader.getTotalsItems();
    Integer val;

    /* Create a simple Bar chart
     */
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    for (String protocol : mappeddata.keySet()) {
      val = mappeddata.get(protocol);
      dataset.setValue(val.intValue(), "Netflow", protocol);
    }

    JFreeChart chart =
        ChartFactory.createBarChart(
            "Total by IP",
            "IP Address",
            "Octets",
            dataset,
            PlotOrientation.VERTICAL,
            false,
            true,
            false);
    // create and display a frame...
    frame = new ChartFrame(title, chart);
    frame.pack();
  }
 /**
  * Erstellt einen Datensatz aus den Parametern.
  *
  * @param daten Daten
  * @param kopfZeile Kopfzeile
  * @param start Start der Daten
  * @return {@link DefaultCategoryDataset}
  */
 protected DefaultCategoryDataset erstelleDatensatz(
     Object[][] daten, Object[] kopfZeile, int start) {
   DefaultCategoryDataset dataset = new DefaultCategoryDataset();
   for (int i = 0; i < daten.length; i++) {
     for (int j = 0; j < daten[i].length - start; j++) {
       int help = (Integer) daten[i][j + start];
       double d = help;
       String k = (String) kopfZeile[0];
       if (k.endsWith("Gesamtsitzzahl")) {
         dataset.setValue(d, (String) kopfZeile[j + start], "Bundestag");
       } else {
         dataset.setValue(d, (String) kopfZeile[j + start], (String) daten[i][1]);
       }
     }
   }
   return dataset;
 }
 public void incrementValue(double value, Comparable rowKey, Comparable columnKey) {
   double existing = 0.0d;
   Number n = getValue(rowKey, columnKey);
   if (n != null) {
     existing = n.doubleValue();
   }
   setValue(existing + value, rowKey, columnKey);
 }
Esempio n. 7
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  /**
   * A check for the interaction between the 'autoRangeIncludesZero' flag and the base setting in
   * the BarRenderer.
   */
  @Test
  public void testAutoRange4() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.setValue(100.0, "Row 1", "Column 1");
    dataset.setValue(200.0, "Row 1", "Column 2");
    JFreeChart chart =
        ChartFactory.createBarChart(
            "Test", "Categories", "Value", dataset, PlotOrientation.VERTICAL, false, false, false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    NumberAxis axis = (NumberAxis) plot.getRangeAxis();
    axis.setAutoRangeIncludesZero(false);
    BarRenderer br = (BarRenderer) plot.getRenderer();
    br.setIncludeBaseInRange(false);
    assertEquals(95.0, axis.getLowerBound(), EPSILON);
    assertEquals(205.0, axis.getUpperBound(), EPSILON);

    br.setIncludeBaseInRange(true);
    assertEquals(0.0, axis.getLowerBound(), EPSILON);
    assertEquals(210.0, axis.getUpperBound(), EPSILON);

    axis.setAutoRangeIncludesZero(true);
    assertEquals(0.0, axis.getLowerBound(), EPSILON);
    assertEquals(210.0, axis.getUpperBound(), EPSILON);

    br.setIncludeBaseInRange(true);
    assertEquals(0.0, axis.getLowerBound(), EPSILON);
    assertEquals(210.0, axis.getUpperBound(), EPSILON);

    // now replacing the dataset should update the axis range...
    DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
    dataset2.setValue(900.0, "Row 1", "Column 1");
    dataset2.setValue(1000.0, "Row 1", "Column 2");
    plot.setDataset(dataset2);
    assertEquals(0.0, axis.getLowerBound(), EPSILON);
    assertEquals(1050.0, axis.getUpperBound(), EPSILON);

    br.setIncludeBaseInRange(false);
    assertEquals(0.0, axis.getLowerBound(), EPSILON);
    assertEquals(1050.0, axis.getUpperBound(), EPSILON);

    axis.setAutoRangeIncludesZero(false);
    assertEquals(895.0, axis.getLowerBound(), EPSILON);
    assertEquals(1005.0, axis.getUpperBound(), EPSILON);
  }
Esempio n. 8
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  public JFreeChart getChart() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.setValue(5, "Sales", "2007");
    dataset.setValue(6, "Sales", "2008");

    JFreeChart chart =
        ChartFactory.createBarChart(
            "BarChart", "Year", "Sales", dataset, PlotOrientation.VERTICAL, false, true, true);

    return chart;
  }
Esempio n. 9
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 /**
  * A simple test for the auto-range calculation looking at a NumberAxis used as the range axis for
  * a CategoryPlot.
  */
 @Test
 public void testAutoRange1() {
   DefaultCategoryDataset dataset = new DefaultCategoryDataset();
   dataset.setValue(100.0, "Row 1", "Column 1");
   dataset.setValue(200.0, "Row 1", "Column 2");
   JFreeChart chart = ChartFactory.createBarChart("Test", "Categories", "Value", dataset);
   CategoryPlot plot = (CategoryPlot) chart.getPlot();
   NumberAxis axis = (NumberAxis) plot.getRangeAxis();
   assertEquals(axis.getLowerBound(), 0.0, EPSILON);
   assertEquals(axis.getUpperBound(), 210.0, EPSILON);
 }
Esempio n. 10
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 /**
  * A simple test for the auto-range calculation looking at a NumberAxis used as the range axis for
  * a CategoryPlot. In this case, the 'autoRangeIncludesZero' flag is set to false.
  */
 public void testAutoRange2() {
   DefaultCategoryDataset dataset = new DefaultCategoryDataset();
   dataset.setValue(100.0, "Row 1", "Column 1");
   dataset.setValue(200.0, "Row 1", "Column 2");
   JFreeChart chart =
       ChartFactory.createBarChart(
           "Test", "Categories", "Value", dataset, PlotOrientation.VERTICAL, false, false, false);
   CategoryPlot plot = (CategoryPlot) chart.getPlot();
   NumberAxis axis = (NumberAxis) plot.getRangeAxis();
   axis.setAutoRangeIncludesZero(false);
   assertEquals(axis.getLowerBound(), 95.0, EPSILON);
   assertEquals(axis.getUpperBound(), 205.0, EPSILON);
 }
Esempio n. 11
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  @Override
  protected DefaultCategoryDataset getDataOfChat() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();

    for (Map.Entry<File, List<QueryFile>> map : getResults4File().entrySet()) {
      for (QueryFile qf : map.getValue()) {
        if (qf.getAverageTime() != 0)
          dataset.setValue(
              Long.valueOf(qf.getAverageTime()),
              QueryType.getNameByType(qf.getQueryType()),
              qf.getFileName());
      }
    }

    return dataset;
  }
  private PanelTopPadecimientos() {
    setBackground(Color.WHITE);
    setBorder(new TitledBorder(null, "", TitledBorder.LEADING, TitledBorder.TOP, null, null));
    estadisticaModelo = ModeloEstadistica.getInstancia((Manejador.getInstancia(false, false)));

    DefaultCategoryDataset dataset = new DefaultCategoryDataset();

    DefaultCategoryDataset datasetPadecimiento = new DefaultCategoryDataset();
    ArrayList<Estadistica> estadisticaPadecimiento =
        (ArrayList<Estadistica>) estadisticaModelo.getEstadisticaPadecimiento();

    for (Estadistica estadist : estadisticaPadecimiento) {
      System.out.println(estadist.getTotal() + "\t" + estadist.getMedicoId());

      long val;
      val = (long) estadist.getTotal();
      String val2 = "";
      val2 += estadist.getMedicoId();

      dataset.setValue(val, "Padecimiento", val2);
    }

    JFreeChart chartPadecimiento =
        ChartFactory.createBarChart(
            "Top 10 padecimientos más frecuentados",
            "",
            "Padecimientos",
            dataset,
            PlotOrientation.VERTICAL,
            false,
            true,
            false);
    chartPadecimiento.setBackgroundPaint(Color.white);
    chartPadecimiento.getTitle().setPaint(Color.blue);
    CategoryPlot pa = chartPadecimiento.getCategoryPlot();
    pa.setRangeGridlinePaint(Color.red);
    setLayout(null);
    ChartPanel panelPadecimiento = new ChartPanel(chartPadecimiento);
    panelPadecimiento.setBounds(47, 41, 837, 551);
    panelPadecimiento.setBackground(SystemColor.control);
    add(panelPadecimiento);
  }
 /**
  * Updates the dataset values based on the scale info.
  *
  * @param chartDocument -- Current chart document.
  * @param data -- Data for the current chart.
  * @param dataset -- Dataset to be updated.
  * @param row -- Curent row nuber in the data.
  * @param column -- Current column number in the data.
  * @param noRowNameSpecified -- Default row name if row name is not specified.
  * @param noColumnName -- Default column name if column name is not specified.
  * @param scale -- Scale to be used to modify the dataset.
  */
 private void updateDatasetBasedOnScale(
     final ChartDocument chartDocument,
     final ChartTableModel data,
     final DefaultCategoryDataset dataset,
     final int row,
     final int column,
     final String noRowNameSpecified,
     final String noColumnName,
     final double scale) {
   final String rawColumnName = JFreeChartUtils.getColumnName(data, column);
   final String columnName = rawColumnName != null ? rawColumnName : noColumnName + column;
   final Object rawRowName = JFreeChartUtils.getRawRowName(data, chartDocument, row);
   final String rowName =
       rawRowName != null ? String.valueOf(rawRowName) : (noRowNameSpecified + row);
   final Object rawValue = data.getValueAt(row, column);
   if (rawValue instanceof Number) {
     final Number number = (Number) rawValue;
     double value = number.doubleValue();
     value *= scale;
     dataset.setValue(value, rowName, columnName);
   }
 }
  public static JFreeChart generateBarChart(JSONArray IndividualPDFChart) {
    DefaultCategoryDataset dataSet = new DefaultCategoryDataset();
    for (int i = 0; i < IndividualPDFChart.size(); i++) {

      JSONObject jsonChart = IndividualPDFChart.getJSONObject(i);
      dataSet.setValue(
          Double.parseDouble(jsonChart.getString(PDFConstants.PieData2)),
          PDFConstants.BarChartBarTitle,
          jsonChart.getString(PDFConstants.PieData1));
    }

    JFreeChart chart =
        ChartFactory.createBarChart(
            PDFConstants.BarChartTitle,
            PDFConstants.BarChartXTitle,
            PDFConstants.BarChartYTitle,
            dataSet,
            PlotOrientation.VERTICAL,
            false,
            true,
            false);

    return chart;
  }
  public JFreeChart getChart() {
    JFreeChart chart = null;
    try {
      Font font = new Font("宋体", 0, 20); // 字体
      QuestionStatisticsModel qsm = ss.statistics(qid);
      DefaultPieDataset pieds = null; // 饼图的数据集
      DefaultCategoryDataset cateds = null; // 种类数据集

      if (chartType < 2) {
        pieds = new DefaultPieDataset();
        for (OptionStatisticsModel os : qsm.getOsms()) {
          pieds.setValue(os.getOptionLabel(), os.getCount());
        }
      } else {
        cateds = new DefaultCategoryDataset();
        for (OptionStatisticsModel os : qsm.getOsms()) {
          cateds.setValue(os.getCount(), os.getOptionLabel(), "");
        }
      }

      switch (chartType) {
        case CHARTTYPE_PIE_2D:
          chart =
              ChartFactory.createPieChart(qsm.getQuestion().getTitle(), pieds, true, false, false);
          break;
        case CHARTTYPE_PIE_3D:
          chart =
              ChartFactory.createPieChart3D(qsm.getQuestion().getTitle(), pieds, true, true, true);
          // 设置前景色透明度
          chart.getPlot().setForegroundAlpha(0.6f);
          break;
        case CHARTTYPE_BAR_2D_H: // 平面条形图
          chart =
              ChartFactory.createBarChart(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.HORIZONTAL,
                  true,
                  true,
                  true);
          break;
        case CHARTTYPE_BAR_2D_V: // 平面条形图
          chart =
              ChartFactory.createBarChart(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.VERTICAL,
                  true,
                  true,
                  true);
        case CHARTTYPE_BAR_3D_H: // 平面条形图
          chart =
              ChartFactory.createBarChart3D(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.HORIZONTAL,
                  true,
                  true,
                  true);
        case CHARTTYPE_BAR_3D_V: // 平面条形图
          chart =
              ChartFactory.createBarChart3D(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.VERTICAL,
                  true,
                  true,
                  true);
          break;
          //
        case CHARTTYPE_LINE_2D: // 平面条形图
          chart =
              ChartFactory.createLineChart(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.VERTICAL,
                  true,
                  true,
                  true);
          break;
        case CHARTTYPE_LINE_3D: // 平面条形图
          chart =
              ChartFactory.createLineChart3D(
                  qsm.getQuestion().getTitle(),
                  "",
                  "",
                  cateds,
                  PlotOrientation.HORIZONTAL,
                  true,
                  true,
                  true);
          break;
      }

      chart.getTitle().setFont(font);
      chart.getLegend().setItemFont(font);

      // 设置饼图特效
      if (chart.getPlot() instanceof PiePlot) {
        PiePlot pieplot = (PiePlot) chart.getPlot();
        pieplot.setLabelFont(font);
        pieplot.setExplodePercent(0, 0.1);
        pieplot.setStartAngle(-15);
        pieplot.setDirection(Rotation.CLOCKWISE);
        pieplot.setNoDataMessage("No data to display");
        // pieplot.setForegroundAlpha(0.5f);
        // pieplot.setBackgroundImageAlpha(0.3f);
      }
      // 设置非饼图效果
      else {
        chart.getCategoryPlot().getRangeAxis().setLabelFont(font);
        chart.getCategoryPlot().getRangeAxis().setTickLabelFont(font);
        chart.getCategoryPlot().getDomainAxis().setLabelFont(font);
        chart.getCategoryPlot().getDomainAxis().setTickLabelFont(font);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    return chart;
  }
 public void setValue(double value, Comparable rowKey, Comparable columnKey) {
   setValue(new Double(value), rowKey, columnKey);
 }
Esempio n. 17
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  private String geraTabelaMeses(
      String tituloSLA,
      Integer idAcordoNivelServico,
      HttpServletRequest request,
      UsuarioDTO usuarioDto)
      throws ParseException, IOException {
    ControleGenerateSLAPorAcordoNivelServicoByMesAno
        controleGenerateSLAPorAcordoNivelServicoByMesAno =
            new ControleGenerateSLAPorAcordoNivelServicoByMesAno();
    int m = UtilDatas.getMonth(UtilDatas.getDataAtual());
    int y = UtilDatas.getYear(UtilDatas.getDataAtual());
    int mPesq = (m + 1); // Faz este incremento de 1, pois logo que entrar no laço, faz um -1
    String strTable = "<table width='100%' border='1'>";
    String strHeader = "";
    String strDados = "";
    strHeader += "<tr>";
    strDados += "<tr>";

    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    for (int i = 0; i < 6; i++) {
      mPesq = (mPesq - 1);
      if (mPesq <= 0) {
        mPesq = 12;
        y = y - 1;
      }
      strHeader = strHeader + "<td colspan='2' style='border:1px solid black; text-align:center'>";
      strHeader = strHeader + (mPesq + "/" + y);
      strHeader = strHeader + "</td>";

      List lst =
          controleGenerateSLAPorAcordoNivelServicoByMesAno.execute(idAcordoNivelServico, y, mPesq);
      double qtdeDentroPrazo = 0;
      double qtdeForaPrazo = 0;
      if (lst != null && lst.size() > 0) {
        for (Iterator itSLA = lst.iterator(); itSLA.hasNext(); ) {
          Object[] objs = (Object[]) itSLA.next();
          if (((String) objs[0]).indexOf("Fora") > -1 || ((String) objs[0]).indexOf("Out") > -1) {
            qtdeForaPrazo = (Double) objs[2];
          } else {
            qtdeDentroPrazo = (Double) objs[2];
          }
        }
      }
      double qtdeDentroPrazoPerc = 0;
      if ((qtdeDentroPrazo + qtdeForaPrazo) > 0) {
        qtdeDentroPrazoPerc = (qtdeDentroPrazo / (qtdeDentroPrazo + qtdeForaPrazo)) * 100;
      }
      double qtdeForaPrazoPerc = 0;
      if ((qtdeDentroPrazo + qtdeForaPrazo) > 0) {
        qtdeForaPrazoPerc = (qtdeForaPrazo / (qtdeDentroPrazo + qtdeForaPrazo)) * 100;
      }
      strDados = strDados + "<td style='border:1px solid black'>";
      strDados = strDados + UtilFormatacao.formatDouble(qtdeDentroPrazoPerc, 2) + "%";
      strDados = strDados + "</td>";
      strDados = strDados + "<td style='border:1px solid black'>";
      strDados = strDados + UtilFormatacao.formatDouble(qtdeForaPrazoPerc, 2) + "%";
      strDados = strDados + "</td>";

      dataset.setValue(
          new Double(qtdeDentroPrazoPerc),
          UtilI18N.internacionaliza(request, "sla.avaliacao.noprazo"),
          "" + (mPesq + "/" + y));
      dataset.setValue(
          new Double(qtdeForaPrazoPerc),
          UtilI18N.internacionaliza(request, "sla.avaliacao.foraprazo"),
          "" + (mPesq + "/" + y));
    }
    strHeader += "</tr>";
    strDados += "</tr>";

    // create the chart...
    JFreeChart chart =
        ChartFactory.createBarChart(
            tituloSLA, // chart title
            UtilI18N.internacionaliza(request, "sla.avaliacao.indicadores"), // domain axis label
            UtilI18N.internacionaliza(request, "sla.avaliacao.resultado"), // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // orientation
            true, // include legend
            true, // tooltips?
            false // URLs?
            );

    // set the background color for the chart...
    chart.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...
    CategoryPlot plot = chart.getCategoryPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    // set the range axis to display integers only...
    final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    // disable bar outlines...
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);

    // set up gradient paints for series...
    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(0, 64, 0));

    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);

    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(
        CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));

    String nomeImgAval =
        CITCorporeUtil.caminho_real_app
            + "/tempFiles/"
            + usuarioDto.getIdUsuario()
            + "/avalSLAXX_"
            + idAcordoNivelServico
            + ".png";
    String nomeImgAvalRel =
        br.com.citframework.util.Constantes.getValue("SERVER_ADDRESS")
            + br.com.citframework.util.Constantes.getValue("CONTEXTO_APLICACAO")
            + "/tempFiles/"
            + usuarioDto.getIdUsuario()
            + "/avalSLAXX_"
            + idAcordoNivelServico
            + ".png";
    File arquivo2 = new File(nomeImgAval);
    if (arquivo2.exists()) {
      arquivo2.delete();
    }
    ChartUtilities.saveChartAsPNG(arquivo2, chart, 500, 200);
    strTable += "<tr>";
    strTable += "<td colspan='12'>";
    strTable += "<img src='" + nomeImgAvalRel + "' border='0'/>";
    strTable += "</td>";
    strTable += "</tr>";

    strTable += strHeader;
    strTable += strDados;

    strTable += "</table>";
    return strTable;
  }