管理Excel图表的图例
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图例选项
Aspose.Cells还允许在运行时管理图表的图例,使用Legend对象,可以移动、更新和格式化图例。
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设置图表的图例
使用Aspose.Cells Legend来简单管理图表的图例。
以下代码片段演示了如何管理图例:
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// Instantiating a Workbook object | |
Workbook workbook = new Workbook(); | |
// Adding a new worksheet to the Workbook object | |
int sheetIndex = workbook.getWorksheets().add(); | |
// Obtaining the reference of the newly added worksheet by passing its sheet index | |
Worksheet worksheet = workbook.getWorksheets().get(sheetIndex); | |
// Adding sample values to cells | |
worksheet.getCells().get("A1").putValue("Series1"); | |
worksheet.getCells().get("A2").putValue(50); | |
worksheet.getCells().get("A3").putValue(100); | |
worksheet.getCells().get("A4").putValue(150); | |
worksheet.getCells().get("B1").putValue("Series2"); | |
worksheet.getCells().get("B2").putValue(60); | |
worksheet.getCells().get("B3").putValue(32); | |
worksheet.getCells().get("B4").putValue(50); | |
// Adding a chart to the worksheet | |
int chartIndex = worksheet.getCharts().add(ChartType.COLUMN, 5, 0, 15, 5); | |
// Accessing the instance of the newly added chart | |
Chart 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); | |
// Move the legend to left | |
chart.getLegend().setPosition(LegendPositionType.LEFT); | |
// Set font color of the legend | |
chart.getLegend().getFont().setColor(Color.getBlue()); | |
// Save the file | |
workbook.save("chart_datalabels.xlsx"); |