使用 C++ 管理Excel图表的轴线

在Excel图表中，有3种类型的轴：

水平（类别）轴：X轴
垂直（数值）轴：Y轴
深度（系列）轴：Z轴

轴选项

Aspose.Cells 还允许你在运行时管理图表的轴线。使用 Axis 对象，你可以像在Excel中一样更改轴线的所有选项。

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管理X和Y轴

在Excel图表中，水平轴和垂直轴是最常用的两个轴线。

以下代码片段演示了如何设置X轴和Y轴的选项。

#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
using namespace Aspose::Cells::Charts;

int main()
{
    Aspose::Cells::Startup();

    // Instantiating a Workbook object
    Workbook 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(u"A1").PutValue(u"Series1");
    worksheet.GetCells().Get(u"A2").PutValue(50);
    worksheet.GetCells().Get(u"A3").PutValue(100);
    worksheet.GetCells().Get(u"A4").PutValue(150);
    worksheet.GetCells().Get(u"B1").PutValue(u"Series2");
    worksheet.GetCells().Get(u"B2").PutValue(60);
    worksheet.GetCells().Get(u"B3").PutValue(32);
    worksheet.GetCells().Get(u"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 "B4"
    chart.SetChartDataRange(u"A1:B4", true);

    // Hiding X axis
    chart.GetCategoryAxis().SetIsVisible(false);

    // Setting max value of Y axis
    chart.GetValueAxis().SetMaxValue(200);

    // Setting major unit
    chart.GetValueAxis().SetMajorUnit(50);

    // Save the file
    workbook.Save(u"chart_axes.xlsx");

    Aspose::Cells::Cleanup();
}

高级主题

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