Grafik Arka Plan Doldurma Olarak Resim Ayarla Node.js ile C++ kullanarak

Bunu başarmak için, Aspose.Cells Chart.getPlotArea() özelliğini sağlar. Aşağıdaki kod örneği, bir resmi bir grafikte arka plan olarak ayarlamak için Chart.getPlotArea() özelliğini kullanımını göstermektedir.

Node.js kodu ile grafikte resmi arka plan doldurması olarak ayarlama

const AsposeCells = require("aspose.cells.node");
const path = require("path");

// The path to the documents directory.
const dataDir = path.join(__dirname, "data");
const filePath = path.join(dataDir, "sample.xlsx");

// Loads the workbook which contains hidden external links
const workbook = new AsposeCells.Workbook(filePath);

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

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

// Get the cells collection in the sheet.
const 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.
let sheetIndex = workbook.getWorksheets().add(AsposeCells.SheetType.Chart);
sheet = workbook.getWorksheets().get(sheetIndex);

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

// Create chart
let chartIndex = sheet.getCharts().add(AsposeCells.ChartType.Column, 1, 1, 25, 10);
const chart = sheet.getCharts().get(chartIndex);

// Set some properties of chart plot area.
// To set a picture as fill format and make the border invisible.
const fs = require("fs");
const data = fs.readFileSync(path.join(dataDir, "aspose.png"));
chart.getPlotArea().getArea().getFillFormat().setImageData(data);
chart.getPlotArea().getBorder().setIsVisible(false);

// Set properties of chart title
chart.getTitle().setText("Sales By Region");
chart.getTitle().getFont().setColor(AsposeCells.Color.Blue);
chart.getTitle().getFont().setIsBold(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().setIsColorVaried(true);

// Set the Legend.
const legend = chart.getLegend();
legend.setPosition(AsposeCells.LegendPositionType.Top);

// Save the excel file
workbook.save(path.join(dataDir, "column_chart_out.xls"));