Node.jsをC++経由でExcelチャートの凡例を管理
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凡例オプション
Aspose.Cells for Node.js via C++は、実行時にチャートの凡例を管理することも可能です。 Legend オブジェクトは移動、更新、書式設定ができます。
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チャートの凡例の設定
Aspose.Cellsの Legend を利用して、チャートの凡例を簡単に管理できます。
凡例管理のためのコードスニペットは次のとおりです:
const path = require("path");
const AsposeCells = require("aspose.cells.node");
// The path to the documents directory.
const dataDir = path.join(__dirname, "data");
const filePath = path.join(dataDir, "sample.xlsx");
// Instantiating a Workbook object
const workbook = new AsposeCells.Workbook();
// Adding a new worksheet to the Workbook object
const sheetIndex = workbook.getWorksheets().add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
const worksheet = workbook.getWorksheets().get(sheetIndex);
// Adding sample values to cells
worksheet.getCells().get("A1").putValue(50);
worksheet.getCells().get("A2").putValue(100);
worksheet.getCells().get("A3").putValue(150);
worksheet.getCells().get("B1").putValue(60);
worksheet.getCells().get("B2").putValue(32);
worksheet.getCells().get("B3").putValue(50);
// Adding a chart to the worksheet
const chartIndex = worksheet.getCharts().add(AsposeCells.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
const chart = worksheet.getCharts().get(chartIndex);
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.getNSeries().add("A1:B3", true);
// Setting the title of a chart
chart.getTitle().setText("Title");
// Setting the font color of the chart title to blue
chart.getTitle().getFont().setColor(AsposeCells.Color.Blue);
// Move the legend to left
chart.getLegend().setPosition(AsposeCells.LegendPositionType.Left);
// Set font color of the legend
chart.getLegend().getFont().setColor(AsposeCells.Color.Blue);
// Save the file
workbook.save("chart_legend.xlsx");