Stacked Bar Chart with percentage composition inside the Bar and total above the Bar in JFreeChart

bar-chartcustomizationjfreechartstacked

I am trying to create a Stacked Bar Chart. My requirement is I need percentage composition inside the bar and total count on top of the Bar. Please suggest solutions.

My Requirement:
Sample : http://www.jfree.org/jfreechart/api/javadoc/images/StackedBarRenderer3DSample.png

I want percentage composition inside the bar and total composition on the top of the bar.

Best Answer

It's not clear what you are doing now, but using a StackedBarRenderer with setRenderAsPercentages(true) will display the percentages. To get the total, extend StackedBarRenderer, loop through the dataset for each column, and override drawItem() to draw the result. An example may be found in the JFreeChart Demo as part of StackedBarChartDemo3.

As an alternative, consider a custom CategoryToolTipGenerator, added via setBaseToolTipGenerator().

Addendum: You linked to an example using StackedBarRenderer3D, which also has a setRenderAsPercentages() method. It can be extended similarly.

Related Solutions

Fix Bar Chart Width and Spacing between bars in JFreeChart

In a Stacked Bar chart, you can change the spacing between bars using

CategoryAxis.setLowerMargin
CategoryAxis.setMargin and
CategoryAxis.setUpperMargin

Code is below

protected JFreeChart generateGraph() {

  CategoryAxis categoryAxis = new CategoryAxis("Categories");
  categoryAxis.setLowerMargin(.01);
  categoryAxis.setCategoryMargin(.01);
  categoryAxis.setUpperMargin(.01);      
  categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);

  ValueAxis valueAxis = new NumberAxis("Values");

  StackedBarRenderer renderer = new StackedBarRenderer();
  renderer.setBarPainter(new StandardBarPainter());
  renderer.setDrawBarOutline(false);
  renderer.setShadowVisible(false);
  renderer.setBaseItemLabelsVisible(true);
  renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());

  CategoryPlot plot = new CategoryPlot( _dataset,
                                        categoryAxis,
                                        valueAxis,
                                        renderer);

  plot.setOrientation(PlotOrientation.VERTICAL);

  JFreeChart chart = new JFreeChart( "Title",
                          JFreeChart.DEFAULT_TITLE_FONT,
                          plot,
                          true);
  //ChartFactory.getChartTheme().apply(_chart);
  return chart;
}

Excel – Labeling % of total on stacked bar chart in Tableau

It's pretty simple. Drag Total $ again to the rows, then right-click, quick table calculation, percent of total. Then right click again, Compute using, Cell.

This will give you the percentages. Now just drag this created field to Label

Best Answer

Related Solutions

Fix Bar Chart Width and Spacing between bars in JFreeChart

Excel – Labeling % of total on stacked bar chart in Tableau

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