Set Picture as Background Fill in the Chart

Aspose.Cells allows you to set a gradient, texture, pattern or picture as fill effects for different objects, such as the plot area, chart area, or legend box of a chart. This document shows how to add an image to a chart’s background.

The following chart is created with the sample code.

Image showing the output chart after the execution of the sample code

Java code to set picture as background fill in the chart

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(SetPictureAsBackgroundFillInChart.class);
// Create a new Workbook.
Workbook workbook = new Workbook();

// Get the first worksheet.
Worksheet sheet = workbook.getWorksheets().get(0);

// Set the name of worksheet
sheet.setName("Data");

// Get the cells collection in the sheet.
Cells cells = workbook.getWorksheets().get(0).getCells();

// Put some values into a cells of the Data sheet.
cells.get("A1").putValue("Region");
cells.get("A2").putValue("France");
cells.get("A3").putValue("Germany");
cells.get("A4").putValue("England");
cells.get("A5").putValue("Sweden");
cells.get("A6").putValue("Italy");
cells.get("A7").putValue("Spain");
cells.get("A8").putValue("Portugal");
cells.get("B1").putValue("Sale");
cells.get("B2").putValue(70000);
cells.get("B3").putValue(55000);
cells.get("B4").putValue(30000);
cells.get("B5").putValue(40000);
cells.get("B6").putValue(35000);
cells.get("B7").putValue(32000);
cells.get("B8").putValue(10000);

// Add a chart sheet.
int sheetIndex = workbook.getWorksheets().add(SheetType.CHART);
sheet = workbook.getWorksheets().get(sheetIndex);

// Set the name of worksheet
sheet.setName("Chart");

// Create chart
int chartIndex = 0;
chartIndex = sheet.getCharts().add(ChartType.COLUMN, 1, 1, 25, 10);
Chart chart = sheet.getCharts().get(chartIndex);

// Set some properties of chart plot area. To set a picture as fill format and make the border invisible.

File file = new File(dataDir + "aspose-logo.png");
byte[] data = new byte[(int) file.length()];
FileInputStream fis = new FileInputStream(file);
fis.read(data);

chart.getPlotArea().getArea().getFillFormat().setImageData(data);
chart.getPlotArea().getBorder().setVisible(false);

// Set properties of chart title
chart.getTitle().setText("Sales By Region");
chart.getTitle().getFont().setColor(Color.getBlue());
chart.getTitle().getFont().setBold(true);
chart.getTitle().getFont().setSize(12);

// Set properties of nseries
chart.getNSeries().add("Data!B2:B8", true);
chart.getNSeries().setCategoryData("Data!A2:A8");
chart.getNSeries().setColorVaried(true);

// Set the Legend.
Legend legend = chart.getLegend();
legend.setPosition(LegendPositionType.TOP);

// Save the excel file
workbook.save(dataDir + "column_chart.xls");