Radar Chart Creating in Java Slides
Contents
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]Introduction to Creating a Radar Chart in Java Slides
In this tutorial, we will guide you through the process of creating a Radar Chart using the Aspose.Slides for Java API. Radar charts are useful for visualizing data in a circular pattern, making it easier to compare multiple data series. We will provide step-by-step instructions along with Java source code.
Prerequisites
Before we begin, ensure that you have the Aspose.Slides for Java library integrated into your project. You can download the library from here.
Step 1: Setting Up the Presentation
Let’s start by setting up a new PowerPoint presentation and adding a slide to it.
String outPath = "Your Output Directory" + File.separator + "RadarChart_Out.pptx";
Presentation pres = new Presentation();
Step 2: Adding a Radar Chart
Next, we will add a radar chart to the slide. We will specify the chart’s position and dimensions.
ISlide sld = pres.getSlides().get_Item(0);
IChart ichart = sld.getShapes().addChart(ChartType.Radar, 0, 0, 400, 400);
Step 3: Setting Chart Data
We will now set the chart data. This involves creating a data workbook, adding categories, and adding series.
int defaultWorksheetIndex = 0;
IChartDataWorkbook fact = ichart.getChartData().getChartDataWorkbook();
// Set chart title
ichart.getChartTitle().addTextFrameForOverriding("Radar Chart");
// Delete default generated series and categories
ichart.getChartData().getCategories().clear();
ichart.getChartData().getSeries().clear();
// Adding new categories
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 1, 0, "Category 1"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 2, 0, "Category 3"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 3, 0, "Category 5"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 4, 0, "Category 7"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 5, 0, "Category 9"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 6, 0, "Category 11"));
// Adding new series
ichart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 1, "Series 1"), ichart.getType());
ichart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 2, "Series 2"), ichart.getType());
Step 4: Populating Series Data
Now, we’ll populate the series data for our radar chart.
// Populate series data for Series 1
IChartSeries series = ichart.getChartData().getSeries().get_Item(0);
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 1, 1, 2.7));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 2, 1, 2.4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 3, 1, 1.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 4, 1, 3.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 5, 1, 5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 6, 1, 3.5));
// Set series color
series.getFormat().getLine().getFillFormat().setFillType(FillType.Solid);
series.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Color.RED);
// Populate series data for Series 2
series = ichart.getChartData().getSeries().get_Item(1);
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 1, 2, 2.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 2, 2, 2.4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 3, 2, 1.6));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 4, 2, 3.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 5, 2, 4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 6, 2, 3.6));
// Set series color
series.getFormat().getLine().getFillFormat().setFillType(FillType.Solid);
series.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Color.ORANGE);
Step 5: Customizing Axis and Legends
Let’s customize the axis and legends for our radar chart.
// Set legend position
ichart.getLegend().setPosition(LegendPositionType.Bottom);
// Setting Category Axis Text Properties
IChartPortionFormat txtCat = ichart.getAxes().getHorizontalAxis().getTextFormat().getPortionFormat();
txtCat.setFontBold(NullableBool.True);
txtCat.setFontHeight(10);
txtCat.getFillFormat().setFillType(FillType.Solid);
txtCat.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtCat.setLatinFont(new FontData("Calibri"));
// Setting Legends Text Properties
IChartPortionFormat txtleg = ichart.getLegend().getTextFormat().getPortionFormat();
txtleg.setFontBold(NullableBool.True);
txtleg.setFontHeight(10);
txtleg.getFillFormat().setFillType(FillType.Solid);
txtleg.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtleg.setLatinFont(new FontData("Calibri"));
// Setting Value Axis Text Properties
IChartPortionFormat txtVal = ichart.getAxes().getVerticalAxis().getTextFormat().getPortionFormat();
txtVal.setFontBold(NullableBool.True);
txtVal.setFontHeight(10);
txtVal.getFillFormat().setFillType(FillType.Solid);
txtVal.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtVal.setLatinFont(new FontData("Calibri"));
// Setting value axis number format
ichart.getAxes().getVerticalAxis().setNumberFormatLinkedToSource(false);
ichart.getAxes().getVerticalAxis().setNumberFormat("\"$\"#,##0.00");
// Setting chart major unit value
ichart.getAxes().getVerticalAxis().setAutomaticMajorUnit(false);
ichart.getAxes().getVerticalAxis().setMajorUnit(1.25f);
Step 6: Saving the Presentation
Finally, save the generated presentation with the radar chart
.
pres.save(outPath, SaveFormat.Pptx);
That’s it! You’ve successfully created a radar chart in a PowerPoint presentation using Aspose.Slides for Java. You can now customize this example further to suit your specific needs.
Complete Source Code For Radar Chart Creating in Java Slides
String outPath = "Your Output Directory" + File.separator + "RadarChart_Out.pptx";
Presentation pres = new Presentation();
try
{
// Access first slide
ISlide sld = pres.getSlides().get_Item(0);
// Add Radar chart
IChart ichart = sld.getShapes().addChart(ChartType.Radar, 0, 0, 400, 400);
// Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
// Getting the chart data WorkSheet
IChartDataWorkbook fact = ichart.getChartData().getChartDataWorkbook();
// Set chart title
ichart.getChartTitle().addTextFrameForOverriding("Radar Chart");
// Delete default generated series and categories
ichart.getChartData().getCategories().clear();
ichart.getChartData().getSeries().clear();
// Adding new categories
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 1, 0, "Caetegoty 1"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 2, 0, "Caetegoty 3"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 3, 0, "Caetegoty 5"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 4, 0, "Caetegoty 7"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 5, 0, "Caetegoty 9"));
ichart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 6, 0, "Caetegoty 11"));
// Adding new series
ichart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 1, "Series 1"), ichart.getType());
ichart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 2, "Series 2"), ichart.getType());
// Now populating series data
IChartSeries series = ichart.getChartData().getSeries().get_Item(0);
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 1, 1, 2.7));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 2, 1, 2.4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 3, 1, 1.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 4, 1, 3.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 5, 1, 5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 6, 1, 3.5));
// Set series color
series.getFormat().getLine().getFillFormat().setFillType(FillType.Solid);
series.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Color.RED);
// Now populating another series data
series = ichart.getChartData().getSeries().get_Item(1);
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 1, 2, 2.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 2, 2, 2.4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 3, 2, 1.6));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 4, 2, 3.5));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 5, 2, 4));
series.getDataPoints().addDataPointForRadarSeries(fact.getCell(defaultWorksheetIndex, 6, 2, 3.6));
// Set series color
series.getFormat().getLine().getFillFormat().setFillType(FillType.Solid);
series.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Color.ORANGE);
// Set legend position
ichart.getLegend().setPosition(LegendPositionType.Bottom);
// Setting Category Axis Text Properties
IChartPortionFormat txtCat = ichart.getAxes().getHorizontalAxis().getTextFormat().getPortionFormat();
txtCat.setFontBold(NullableBool.True);
txtCat.setFontHeight(10);
txtCat.getFillFormat().setFillType(FillType.Solid);
txtCat.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtCat.setLatinFont(new FontData("Calibri"));
// Setting Legends Text Properties
IChartPortionFormat txtleg = ichart.getLegend().getTextFormat().getPortionFormat();
txtleg.setFontBold(NullableBool.True);
txtleg.setFontHeight(10);
txtleg.getFillFormat().setFillType(FillType.Solid);
txtleg.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtCat.setLatinFont(new FontData("Calibri"));
// Setting Value Axis Text Properties
IChartPortionFormat txtVal = ichart.getAxes().getVerticalAxis().getTextFormat().getPortionFormat();
txtVal.setFontBold(NullableBool.True);
txtVal.setFontHeight(10);
txtVal.getFillFormat().setFillType(FillType.Solid);
txtVal.getFillFormat().getSolidFillColor().setColor(new Color(PresetColor.DimGray));
txtVal.setLatinFont(new FontData("Calibri"));
// Setting value axis number format
ichart.getAxes().getVerticalAxis().setNumberFormatLinkedToSource(false);
ichart.getAxes().getVerticalAxis().setNumberFormat("\"$\"#,##0.00");
// Setting chart major unit value
ichart.getAxes().getVerticalAxis().setAutomaticMajorUnit(false);
ichart.getAxes().getVerticalAxis().setMajorUnit(1.25f);
// Save generated presentation
pres.save(outPath, SaveFormat.Pptx);
}
finally
{
if (pres != null) pres.dispose();
}
Conclusion
In this tutorial, you’ve learned how to create a radar chart in a PowerPoint presentation using Aspose.Slides for Java. You can apply these concepts to visualize and present your data effectively in your Java applications.
FAQ’s
How can I change the chart title?
To change the chart title, modify the following line:
ichart.getChartTitle().addTextFrameForOverriding("Radar Chart");
Can I add more data series to the radar chart?
Yes, you can add more data series by following the steps in “Step 3” and “Step 4” for each additional series you want to include.
How do I customize the chart colors?
You can customize the series colors by modifying the lines that set the SolidFillColor property for each series. For example:
series.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Color.RED);
How can I change the axis labels and formatting?
Refer to “Step 5” to customize the axis labels and formatting, including font size and color.
How do I save the chart to a different file format?
You can change the output format by modifying the file extension in the outPath variable and using the appropriate SaveFormat. For example, to save as a PDF, use SaveFormat.Pdf.
