Horizontal tetragons are used to display information in Bar Charts. There are three different types:

Normal

Normal Bar chartS create tetragons based on the data. They use DateTimeYAxis or IndexedYAxis as the YAxis based on the series and NumericXAxis as the XAxis.

                         Figure 1 - Normal Bar Chart

[Java]
    // Create a PDF Document
    Document document = new Document();
        
    // Create a Page and add it to the document
    Page page = new Page();
    document.getPages().add(page);
        
    // Create a chart
    Chart chart = new Chart(0, 0, 400, 230);
        
    // Get the default plot area from the chart
    PlotArea plotArea = chart.getPrimaryPlotArea();
        
    // Create header titles and add it to the chart
    Title title1 = new Title("Website Visitors");
    Title title2 = new Title("Year - 2007");
    chart.getHeaderTitles().add(title1);
    chart.getHeaderTitles().add(title2);
    
     AutoGradient myAutogradient1 = new AutoGradient(180.0f, CmykColor.getRed(), CmykColor.getIndianRed()) 
     AutoGradient myAutogradient2 = new AutoGradient(180.0f, CmykColor.getGreen(), CmykColor.getYellowGreen())
     AutoGradient myAutogradient3 = new AutoGradient(180.0f, CmykColor.getBlue(), CmykColor.getLightBlue())       
    // Create a indexed bar series and add values to it
    IndexedBarSeries barSeries1 = new IndexedBarSeries("Website A", myAutogradient1);
    barSeries1.getValues().add(new float[] { 5, 7, 9, 6 });
    IndexedBarSeries barSeries2 = new IndexedBarSeries("Website B", myAutogradient2);
    barSeries2.getValues().add(new float[] { 4, 2, 5, 8 });
    IndexedBarSeries barSeries3 = new IndexedBarSeries("Website C", myAutogradient3);
    barSeries3.getValues().add(new float[] { 2, 4, 6, 9 });
        
    // Add indexed bar series to the plot area
    plotArea.getSeries().add(barSeries1);
    plotArea.getSeries().add(barSeries2);
    plotArea.getSeries().add(barSeries3);
        
    // Create a title and add it to the yaxis
    Title lTitle = new Title("Visitors (in millions)");
    barSeries1.getXAxis().getTitles().add(lTitle);
        
    // Adding AxisLabels to the XAxis
    barSeries1.getYAxis().getLabels().add(new IndexedYAxisLabel("Q1", 0));
    barSeries1.getYAxis().getLabels().add(new IndexedYAxisLabel("Q2", 1));
    barSeries1.getYAxis().getLabels().add(new IndexedYAxisLabel("Q3", 2));
    barSeries1.getYAxis().getLabels().add(new IndexedYAxisLabel("Q4", 3));
        
    // Add the chart to the page
    page.getElements().add(chart);
        
    // Save the PDF
    document.draw("[PhysicalPath]/MyDocument.pdf");

Stacked

Stacked charts display related data, one on top of the other. They use DateTimeYAxis or IndexedYAxis as the YAxis based on the series and NumericXAxis as the XAxis.

                       Figure 2 - Stacked Bar Chart

[Java]
     // Create a PDF Document
     Document document = new Document();
     // Create a Page and add it to the document
     Page page = new Page();
     document.getPages().add(page);
        
     // Create a chart
     Chart chart = new Chart(0, 0, 400, 230);
     // Create a plot area
     PlotArea plotArea = chart.getPrimaryPlotArea();
        
     // Create header titles and add it to the chart
     Title title1 = new Title("Website Visitors");
     Title title2 = new Title("Year - 2007");
     chart.getHeaderTitles().add(title1);
     chart.getHeaderTitles().add(title2);
     AutoGradient myAutogradient1 = new AutoGradient(180.0f, CmykColor.getRed(), CmykColor.getIndianRed()) 
     AutoGradient myAutogradient2 = new AutoGradient(180.0f, CmykColor.getGreen(), CmykColor.getYellowGreen())
     AutoGradient myAutogradient3 = new AutoGradient(180.0f, CmykColor.getBlue(), CmykColor.getLightBlue()) 
     // Create a indexed stacked bar series elements and add values to it
     IndexedStackedBarSeriesElement seriesElement1 = new IndexedStackedBarSeriesElement("Website A", myAutogradient1);
     seriesElement1.getValues().add(new float[] { 5, 7, 9, 6 });
     IndexedStackedBarSeriesElement seriesElement2 = new IndexedStackedBarSeriesElement("Website B", myAutogradient2);
     seriesElement2.getValues().add(new float[] { 4, 2, 5, 8 });
     IndexedStackedBarSeriesElement seriesElement3 = new IndexedStackedBarSeriesElement("Website C", myAutogradient3);
     seriesElement3.getValues().add(new float[] { 2, 4, 6, 9 });
        
     // Create a Indexed Stacked Bar Series
     IndexedStackedBarSeries barSeries = new IndexedStackedBarSeries();
     // Add indexed stacked bar series elements to the Indexed Stacked Bar Series
     barSeries.add(seriesElement1);
     barSeries.add(seriesElement2);
     barSeries.add(seriesElement3);
     //Add series to the plot area
     plotArea.getSeries().add(barSeries);
        
     // Create a title and add it to the xaxis
     Title lTitle = new Title("Visitors (in millions)");
     barSeries.getXAxis().getTitles().add(lTitle);
        
     //Adding AxisLabels to the yaxis
     barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q1", 0));
     barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q2", 1));
     barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q3", 2));
     barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q4", 3));
        
     // Add the chart to the page
     page.getElements().add(chart);
     // Save the PDF
     document.draw("[PhysicalPath]/MyDocument.pdf");

100% Stacked

100% stacked charts are similar to stacked charts, but here the data is expressed as a percentage. They use DateTimeYAxis or IndexedYAxis as the YAxis based on the series and PercentageXAxis as the XAxis.

                      Figure 3 - Stacked 100% Bar Chart 

[Java]
     // Create a PDF Document
     Document document = new Document();
     // Create a Page and add it to the document
     Page page = new Page();
     document.getPages().add(page);
       
     // Create a chart
     Chart chart = new Chart(0, 0, 400, 230);
     // Create a plot area
     PlotArea plotArea = chart.getPrimaryPlotArea();
        
     // Create header titles and add it to the chart
     Title title1 = new Title("Website Visitors");
     Title title2 = new Title("Year - 2007");
     chart.getHeaderTitles().add(title1);
     chart.getHeaderTitles().add(title2);
     AutoGradient myAutogradient1 = new AutoGradient(180.0f, CmykColor.getRed(), CmykColor.getIndianRed()) 
     AutoGradient myAutogradient2 = new AutoGradient(180.0f, CmykColor.getGreen(), CmykColor.getYellowGreen())
     AutoGradient myAutogradient3 = new AutoGradient(180.0f, CmykColor.getBlue(), CmykColor.getLightBlue()) 
     // Create a indexed 100% bar series elements and add values to it
     Indexed100PercentStackedBarSeriesElement seriesElement1 = new Indexed100PercentStackedBarSeriesElement("Website A", myAutogradient1);
     seriesElement1.getValues().add(new float[] { 5, 7, 9, 6 });
     Indexed100PercentStackedBarSeriesElement seriesElement2 = new Indexed100PercentStackedBarSeriesElement("Website B", myAutogradient2);
     seriesElement2.getValues().add(new float[] { 4, 2, 5, 8 });
     Indexed100PercentStackedBarSeriesElement seriesElement3 = new Indexed100PercentStackedBarSeriesElement("Website C", myAutogradient3);
     seriesElement3.getValues().add(new float[] { 2, 4, 6, 9 });
        
     // Create a Indexed 100% Stacked Bar Series
     Indexed100PercentStackedBarSeries barSeries = new Indexed100PercentStackedBarSeries();
     // Add SeriesElements to the Indexed 100% Stacked Bar Series
     barSeries.add(seriesElement1);
     barSeries.add(seriesElement2);
     barSeries.add(seriesElement3);
     // Add series to the plot area
     plotArea.getSeries().add(barSeries);
        
     // Create a title and add it to the xaxis
     Title lTitle = new Title("Visitors (in millions)");
     barSeries.getXAxis().getTitles().add(lTitle);
        
    //Adding AxisLabels to the yaxis
    barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q1", 0));
    barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q2", 1));
    barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q3", 2));
    barSeries.getYAxis().getLabels().add(new IndexedYAxisLabel("Q4", 3));
        
    //Add the chart to the page
    page.getElements().add(chart);
    // Save the PDF
    document.draw("[PhysicalPath]/MyDocument.pdf");