C# 创建Excel气泡图的实例代码

Z时代
2024-01-10
分类：综合

气泡图（Bubble Chart）是可用于展示三个变量之间的关系。通过绘制x 值， y 值和大小值即可确定图表中气泡的坐标及大小。下面通过后端C#代码及VB.NET代码展示如何来实现在Excel中创建气泡图的方法。

程序环境：

Visual Studio

.Net FrameWork 4.5.1

Spire.XLS for .NET Version 10.12.0

注：编辑代码前先将Spire.Xls.dll（dll文件可在解压包Bin文件夹下获取）添加引用至VS程序，可通过官网下载或者Nuget下载。参考如下引用效果：

【C#】


using Spire.Xls;
using Spire.Xls.Charts;
using System.Drawing;
namespace CreateBubbleChart_XLS
{
  class Program
  {
    static void Main(string[] args)
    {
      //创建一个Excel工作簿，并获取第一张工作表
      Workbook wb = new Workbook();
      wb.Version = ExcelVersion.Version2013;
      Worksheet sheet = wb.Worksheets[0];     
      //添加图表，指定图表类型
      Chart chart = sheet.Charts.Add();
      chart.ChartType = ExcelChartType.Bubble;
      chart.PrimaryCategoryAxis.Title = "人均消费";
      chart.PrimaryValueAxis.Title = "点评数";
      //设置图表的名称和数据
      Spire.Xls.Charts.ChartSerie cs1 = chart.Series.Add("气泡图");
      cs1.EnteredDirectlyValues = new object[]{2, 5, 3, 6, 7};
      cs1.EnteredDirectlyCategoryLabels = new object[]{1, 4.5, 1.2, 3.3, 2};
      cs1.EnteredDirectlyBubbles = new object[]{3, 6, 1, 4, 7};      
      //设置图表位置
      chart.LeftColumn = 4;
      chart.TopRow = 2;
      chart.RightColumn = 12;
      chart.BottomRow = 22;
      //设置图表标题
      chart.ChartTitle = "人均消费VS点评数";
      chart.ChartTitleArea.IsBold = true;
      chart.ChartTitleArea.Size = 12;  
      chart.Legend.Position = LegendPositionType.Top;
      //保存文档
      wb.SaveToFile("BubbleChart.xlsx", ExcelVersion.Version2013);
      System.Diagnostics.Process.Start("BubbleChart.xlsx");
    }
  }
}

气泡图效果：

【vb.net】


Imports Spire.Xls
Imports Spire.Xls.Charts
Imports System.Drawing
Namespace CreateBubbleChart_XLS
  Class Program
    Private Shared Sub Main(args As String())
      '创建一个Excel工作簿，并获取第一张工作表
      Dim wb As New Workbook()
      wb.Version = ExcelVersion.Version2013
      Dim sheet As Worksheet = wb.Worksheets(0)
      '添加图表，指定图表类型
      Dim chart As Chart = sheet.Charts.Add()
      chart.ChartType = ExcelChartType.Bubble
      chart.PrimaryCategoryAxis.Title = "人均消费"
      chart.PrimaryValueAxis.Title = "点评数"
      '设置图表的名称和数据
      Dim cs1 As Spire.Xls.Charts.ChartSerie = chart.Series.Add("气泡图")
      cs1.EnteredDirectlyValues = New Object() {2, 5, 3, 6, 7}
      cs1.EnteredDirectlyCategoryLabels = New Object() {1, 4.5, 1.2, 3.3, 2}
      cs1.EnteredDirectlyBubbles = New Object() {3, 6, 1, 4, 7}
      '设置图表位置
      chart.LeftColumn = 4
      chart.TopRow = 2
      chart.RightColumn = 12
      chart.BottomRow = 22
      '设置图表标题
      chart.ChartTitle = "人均消费VS点评数"
      chart.ChartTitleArea.IsBold = True
      chart.ChartTitleArea.Size = 12
      chart.Legend.Position = LegendPositionType.Top
      '保存文档
      wb.SaveToFile("BubbleChart.xlsx", ExcelVersion.Version2010)
      System.Diagnostics.Process.Start("BubbleChart.xlsx")
    End Sub
  End Class
End Namespace