Tree Map Chart in Java Slides
Contents
[
Hide
]Introduction to Tree Map Chart in Java Slides
In this tutorial, we will demonstrate how to create a Tree Map chart in a PowerPoint presentation using the Aspose.Slides for Java library. Tree Map charts are an effective way to visualize hierarchical data.
Prerequisites
Before you begin, make sure you have the Aspose.Slides for Java library set up in your Java project.
Step 1: Import Required Libraries
import com.aspose.slides.*;
Step 2: Load the Presentation
String dataDir = "Your Document Directory";
Presentation pres = new Presentation(dataDir + "test.pptx");
Step 3: Create a Tree Map Chart
try {
IChart chart = pres.getSlides().get_Item(0).getShapes().addChart(ChartType.Treemap, 50, 50, 500, 400);
chart.getChartData().getCategories().clear();
chart.getChartData().getSeries().clear();
IChartDataWorkbook wb = chart.getChartData().getChartDataWorkbook();
wb.clear(0);
// Create branch 1
IChartCategory leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C1", "Leaf1"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem1");
leaf.getGroupingLevels().setGroupingItem(2, "Branch1");
chart.getChartData().getCategories().add(wb.getCell(0, "C2", "Leaf2"));
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C3", "Leaf3"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem2");
chart.getChartData().getCategories().add(wb.getCell(0, "C4", "Leaf4"));
// Create branch 2
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C5", "Leaf5"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem3");
leaf.getGroupingLevels().setGroupingItem(2, "Branch2");
chart.getChartData().getCategories().add(wb.getCell(0, "C6", "Leaf6"));
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C7", "Leaf7"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem4");
chart.getChartData().getCategories().add(wb.getCell(0, "C8", "Leaf8"));
// Add data points
IChartSeries series = chart.getChartData().getSeries().add(ChartType.Treemap);
series.getLabels().getDefaultDataLabelFormat().setShowCategoryName(true);
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D1", 4));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D2", 5));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D3", 3));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D4", 6));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D5", 9));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D6", 9));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D7", 4));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D8", 3));
series.setParentLabelLayout(ParentLabelLayoutType.Overlapping);
// Save the presentation with the Tree Map chart
pres.save("Treemap.pptx", SaveFormat.Pptx);
} finally {
if (pres != null) pres.dispose();
}
Complete Source Code For Tree Map Chart in Java Slides
String dataDir = "Your Document Directory";
Presentation pres = new Presentation(dataDir + "test.pptx");
try
{
IChart chart = pres.getSlides().get_Item(0).getShapes().addChart(ChartType.Treemap, 50, 50, 500, 400);
chart.getChartData().getCategories().clear();
chart.getChartData().getSeries().clear();
IChartDataWorkbook wb = chart.getChartData().getChartDataWorkbook();
wb.clear(0);
//branch 1
IChartCategory leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C1", "Leaf1"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem1");
leaf.getGroupingLevels().setGroupingItem(2, "Branch1");
chart.getChartData().getCategories().add(wb.getCell(0, "C2", "Leaf2"));
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C3", "Leaf3"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem2");
chart.getChartData().getCategories().add(wb.getCell(0, "C4", "Leaf4"));
//branch 2
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C5", "Leaf5"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem3");
leaf.getGroupingLevels().setGroupingItem(2, "Branch2");
chart.getChartData().getCategories().add(wb.getCell(0, "C6", "Leaf6"));
leaf = chart.getChartData().getCategories().add(wb.getCell(0, "C7", "Leaf7"));
leaf.getGroupingLevels().setGroupingItem(1, "Stem4");
chart.getChartData().getCategories().add(wb.getCell(0, "C8", "Leaf8"));
IChartSeries series = chart.getChartData().getSeries().add(ChartType.Treemap);
series.getLabels().getDefaultDataLabelFormat().setShowCategoryName(true);
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D1", 4));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D2", 5));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D3", 3));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D4", 6));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D5", 9));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D6", 9));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D7", 4));
series.getDataPoints().addDataPointForTreemapSeries(wb.getCell(0, "D8", 3));
series.setParentLabelLayout(ParentLabelLayoutType.Overlapping);
pres.save("Treemap.pptx", SaveFormat.Pptx);
}
finally
{
if (pres != null) pres.dispose();
}
Conclusion
In this tutorial, you have learned how to create a Tree Map chart in a PowerPoint presentation using the Aspose.Slides for Java library. Tree Map charts are a valuable tool for visualizing hierarchical data, making your presentations more informative and engaging.
FAQ’s
How do I add data to the Tree Map chart?
To add data to the Tree Map chart, use the series.getDataPoints().addDataPointForTreemapSeries() method, passing the data values as parameters.
How can I customize the appearance of the Tree Map chart?
You can customize the appearance of the Tree Map chart by modifying various properties of the chart and series objects, such as colors, labels, and layouts.
Can I create multiple Tree Map charts in a single presentation?
Yes, you can create multiple Tree Map charts in a single presentation by following the same steps and specifying different slide positions.
How do I save the presentation with the Tree Map chart?
Use the pres.save() method to save the presentation with the Tree Map chart in the desired format (e.g., PPTX).
