Imposta l'immagine come sfondo Compila il grafico

Il grafico seguente viene creato con il codice di esempio.

Immagine che mostra il grafico di output dopo l’esecuzione del codice di esempio

cose da fare:immagine_alt_testo

Java codice per impostare l’immagine come sfondo compilare il grafico

// 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");