DisplayingPercentageAsLabels.java

package com.aspose.slides.examples.Slides.Charts;

import com.aspose.slides.ChartType;
import com.aspose.slides.IChart;
import com.aspose.slides.IChartCategory;
import com.aspose.slides.IChartSeries;
import com.aspose.slides.IDataLabel;
import com.aspose.slides.IParagraph;
import com.aspose.slides.IPortion;
import com.aspose.slides.ISlide;
import com.aspose.slides.Portion;
import com.aspose.slides.Presentation;
import com.aspose.slides.SaveFormat;
import com.aspose.slides.examples.Utils;

public class DisplayingPercentageAsLabels {

	public static void main(String[] args) {

		// The path to the documents directory.
		String dataDir = Utils.getDataDir(DisplayingPercentageAsLabels.class);

		// Creating empty presentation
		Presentation pres = new Presentation();

		// Access first slide
		ISlide slide = pres.getSlides().get_Item(0);

		IChart chart = slide.getShapes().addChart(ChartType.StackedColumn, 20, 20, 400, 400);
		IChartSeries series = chart.getChartData().getSeries().get_Item(0);
		IChartCategory cat;
		double total_value = 0.0f;

		double[] total_for_Cat = new double[chart.getChartData().getCategories().size()];

		for (int k = 0; k < chart.getChartData().getCategories().size(); k++) {
			cat = chart.getChartData().getCategories().get_Item(k);

			for (int i = 0; i < chart.getChartData().getSeries().size(); i++) {
				total_for_Cat[k] = total_for_Cat[k] + (double) (chart.getChartData().getSeries().get_Item(i).getDataPoints().get_Item(k).getValue().getData());
			}
		}

		double dataPontPercent = 0f;

		for (int x = 0; x < chart.getChartData().getSeries().size(); x++) {
			series = chart.getChartData().getSeries().get_Item(x);
			series.getLabels().getDefaultDataLabelFormat().setShowLegendKey(false);

			for (int j = 0; j < series.getDataPoints().size(); j++) {
				IDataLabel lbl = series.getDataPoints().get_Item(j).getLabel();
				dataPontPercent = (double) ((series.getDataPoints().get_Item(j).getValue().getData())) / (double) (total_for_Cat[j]) * 100;

				IPortion port = new Portion();
				port.setText(String.format("{0:F2} %.2f", dataPontPercent));
				port.getPortionFormat().setFontHeight(8f);
				lbl.getTextFrameForOverriding().setText("");
				IParagraph para = lbl.getTextFrameForOverriding().getParagraphs().get_Item(0);
				para.getPortions().add(port);

				lbl.getDataLabelFormat().setShowSeriesName(false);
				lbl.getDataLabelFormat().setShowPercentage(false);
				lbl.getDataLabelFormat().setShowLegendKey(false);
				lbl.getDataLabelFormat().setShowCategoryName(false);
				lbl.getDataLabelFormat().setShowBubbleSize(false);
			}
		}

		// Save presentation with chart
		pres.save(dataDir + "test.pptx", SaveFormat.Pptx);
	}

}