Multi-Category Chart in Java Slides

Introduction to Multi-Category Chart in Java Slides with Aspose.Slides

In this tutorial, we will learn how to create a multi-category chart in Java slides using the Aspose.Slides for Java API. This guide will provide step-by-step instructions along with source code to help you create a clustered column chart with multiple categories and series.

Prerequisites

Before we begin, make sure you have the Aspose.Slides for Java library installed and set up in your Java development environment.

Step 1: Setting up the Environment

First, import the necessary classes and create a new Presentation object to work with slides.

// The path to the documents directory.
String dataDir = "Your Document Directory";
Presentation pres = new Presentation();

Step 2: Adding a Slide and Chart

Next, create a slide and add a clustered column chart to it.

ISlide slide = pres.getSlides().get_Item(0);
IChart ch = slide.getShapes().addChart(ChartType.ClusteredColumn, 100, 100, 600, 450);

Step 3: Clearing Existing Data

Clear any existing data from the chart.

ch.getChartData().getSeries().clear();
ch.getChartData().getCategories().clear();

Step 4: Setting Up Data Categories

Now, let’s set up data categories for the chart. We will create multiple categories and group them.

IChartDataWorkbook fact = ch.getChartData().getChartDataWorkbook();
fact.clear(0);

int defaultWorksheetIndex = 0;

// Add categories and group them
IChartCategory category = ch.getChartData().getCategories().add(fact.getCell(0, "c2", "A"));
category.getGroupingLevels().setGroupingItem(1, "Group1");

category = ch.getChartData().getCategories().add(fact.getCell(0, "c3", "B"));

category = ch.getChartData().getCategories().add(fact.getCell(0, "c4", "C"));
category.getGroupingLevels().setGroupingItem(1, "Group2");

category = ch.getChartData().getCategories().add(fact.getCell(0, "c5", "D"));

category = ch.getChartData().getCategories().add(fact.getCell(0, "c6", "E"));
category.getGroupingLevels().setGroupingItem(1, "Group3");

category = ch.getChartData().getCategories().add(fact.getCell(0, "c7", "F"));

category = ch.getChartData().getCategories().add(fact.getCell(0, "c8", "G"));
category.getGroupingLevels().setGroupingItem(1, "Group4");

category = ch.getChartData().getCategories().add(fact.getCell(0, "c9", "H"));

Step 5: Adding Series

Now, let’s add a series to the chart along with data points.

IChartSeries series = ch.getChartData().getSeries().add(fact.getCell(0, "D1", "Series 1"), ChartType.ClusteredColumn);

series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D2", 10));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D3", 20));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D4", 30));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D5", 40));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D6", 50));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D7", 60));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D8", 70));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D9", 80));

Step 6: Saving the Presentation

Finally, save the presentation with the chart.

pres.save(dataDir + "AsposeChart_out.pptx", SaveFormat.Pptx);

That’s it! You’ve successfully created a multi-category chart in a Java slide using Aspose.Slides. You can customize this chart further to suit your specific requirements.

Complete Source Code For Multi-Category Chart in Java Slides

// The path to the documents directory.
String dataDir = "Your Document Directory";
Presentation pres = new Presentation();
ISlide slide = pres.getSlides().get_Item(0);
IChart ch = pres.getSlides().get_Item(0).getShapes().addChart(ChartType.ClusteredColumn, 100, 100, 600, 450);
ch.getChartData().getSeries().clear();
ch.getChartData().getCategories().clear();
IChartDataWorkbook fact = ch.getChartData().getChartDataWorkbook();
fact.clear(0);
int defaultWorksheetIndex = 0;
IChartCategory category = ch.getChartData().getCategories().add(fact.getCell(0, "c2", "A"));
category.getGroupingLevels().setGroupingItem(1, "Group1");
category = ch.getChartData().getCategories().add(fact.getCell(0, "c3", "B"));
category = ch.getChartData().getCategories().add(fact.getCell(0, "c4", "C"));
category.getGroupingLevels().setGroupingItem(1, "Group2");
category = ch.getChartData().getCategories().add(fact.getCell(0, "c5", "D"));
category = ch.getChartData().getCategories().add(fact.getCell(0, "c6", "E"));
category.getGroupingLevels().setGroupingItem(1, "Group3");
category = ch.getChartData().getCategories().add(fact.getCell(0, "c7", "F"));
category = ch.getChartData().getCategories().add(fact.getCell(0, "c8", "G"));
category.getGroupingLevels().setGroupingItem(1, "Group4");
category = ch.getChartData().getCategories().add(fact.getCell(0, "c9", "H"));
//            Adding Series
IChartSeries series = ch.getChartData().getSeries().add(fact.getCell(0, "D1", "Series 1"),
		ChartType.ClusteredColumn);
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D2", 10));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D3", 20));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D4", 30));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D5", 40));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D6", 50));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D7", 60));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D8", 70));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, "D9", 80));
// Save presentation with chart
pres.save(dataDir + "AsposeChart_out.pptx", SaveFormat.Pptx);

Conclusion

In this tutorial, we have learned how to create a multi-category chart in Java slides using the Aspose.Slides for Java API. We went through a step-by-step guide with source code to create a clustered column chart with multiple categories and series.

FAQ’s

How can I customize the chart appearance?

You can customize the chart appearance by modifying properties such as colors, fonts, and styles. Refer to the Aspose.Slides documentation for detailed customization options.

Can I add more series to the chart?

Yes, you can add additional series to the chart by following a similar process as shown in Step 5.

How do I change the chart type?

To change the chart type, replace ChartType.ClusteredColumn with the desired chart type when adding the chart in Step 2.

How can I add a title to the chart?

You can add a title to the chart by using the ch.getChartTitle().getTextFrame().setText("Chart Title"); method.

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