# 在 C++ 中创建或更新 PowerPoint 演示文稿图表

> 使用 Aspose.Slides for C++ 在 PowerPoint 演示文稿中创建和自定义图表。通过实用的 C++ 示例代码添加、格式化和编辑图表。

Source: https://docs.aspose.com/slides/zh/cpp/create-chart/
Updated: 2025-12-10


## **创建图表**

图表帮助人们快速可视化数据并获得洞察，这些信息可能在表格或电子表格中并不立即显现。 

**为什么创建图表？**

使用图表，您可以

* 在演示文稿的单个幻灯片上聚合、压缩或汇总大量数据
* 揭示数据中的模式和趋势
* 推断数据随时间或相对于特定计量单位的方向和动向 
* 发现异常值、偏差、误差、不合逻辑的数据等 
* 传达或展示复杂数据

在 PowerPoint 中，您可以通过插入功能创建图表，该功能提供用于设计多种图表的模板。使用 Aspose.Slides，您可以创建常规图表（基于流行的图表类型）和自定义图表。 

{{% alert color="primary" %}} 

为了让您创建图表，Aspose.Slides 在 [Aspose::Slides::Charts](https://reference.aspose.com/slides/cpp/namespace/aspose.slides.charts/) 命名空间下提供了 [ChartType](https://reference.aspose.com/slides/cpp/namespace/aspose.slides.charts#a23ba9ea390f5be4c8f5ab18baf4f8c05) 枚举类。该枚举类中的值对应不同的图表类型。 

{{% /alert %}} 

### **创建普通图表**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个带有数据的图表并指定您偏好的图表类型。  
1. 为图表添加标题。  
1. 访问图表数据工作表。  
1. 清除所有默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加一些新的图表数据。  
1. 为图表系列添加填充颜色。  
1. 为图表系列添加标签。  
1. 将修改后的演示文稿写入为 PPTX 文件。  

以下 C++ 代码演示如何创建普通图表：
```c++
// 文档目录的路径。
	const String outPath = u"../out/NormalCharts_out.pptx";

	//实例化一个表示 PPTX 文件的演示文稿类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	//访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 添加一个带默认数据的图表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ClusteredColumn, 0, 0, 500, 500);


	// 设置图表数据工作表的索引
	int defaultWorksheetIndex = 0;

	// 获取图表数据工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// 设置图表标题
	chart->get_ChartTitle()->AddTextFrameForOverriding(u"Sample Title");
	chart->get_ChartTitle()->get_TextFrameForOverriding()->get_TextFrameFormat()->set_CenterText ( NullableBool::True);
	chart->get_ChartTitle()->set_Height(20);
	chart->set_HasTitle( true);

	// 删除默认生成的系列和类别
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();
	int s = chart->get_ChartData()->get_Series()->get_Count();
	s = chart->get_ChartData()->get_Categories()->get_Count();


	// 添加一个新系列
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 1, ObjectExt::Box<System::String>(u"Series 1")), chart->get_Type());
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 2, ObjectExt::Box<System::String>(u"Series 2")), chart->get_Type());

	// 添加类别
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 1, 0, ObjectExt::Box<System::String>(u"Caetegoty 1")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 2, 0, ObjectExt::Box<System::String>(u"Caetegoty 2")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 3, 0, ObjectExt::Box<System::String>(u"Caetegoty 3")));

	
	// 获取第一条图表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 填充系列数据
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 1, 1, ObjectExt::Box<double>(20)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 2, 1, ObjectExt::Box<double>(50)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 3, 1, ObjectExt::Box<double>(30)));

	// 设置系列的填充颜色
	series->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	series->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Red());


	// 获取第二条图表系列
	 series = chart->get_ChartData()->get_Series()->idx_get(1);

	// 填充系列数据
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 1, 2, ObjectExt::Box<double>(30)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 2, 2, ObjectExt::Box<double>(10)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 3, 2, ObjectExt::Box<double>(60)));

	// 设置系列的填充颜色
	series->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	series->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Green());


	// 第一个标签设置为显示类别名称
	SharedPtr<IDataLabel> lbl = series->get_DataPoints()->idx_get(0)->get_Label();
	lbl->get_DataLabelFormat()->set_ShowCategoryName(true);

	lbl = series->get_DataPoints()->idx_get(1)->get_Label();
	lbl->get_DataLabelFormat()->set_ShowSeriesName (true);

	// 显示第三个标签的数值
	lbl = series->get_DataPoints()->idx_get(2)->get_Label();
	lbl->get_DataLabelFormat()->set_ShowValue (true);
	lbl->get_DataLabelFormat()->set_ShowSeriesName(true);
	lbl->get_DataLabelFormat()->set_Separator (u"/");

	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);

```


### **创建散点图**
散点图（也称为散点图或 x-y 图）常用于检查模式或展示两个变量之间的相关性。 

您可能在以下情况下使用散点图

* 您拥有配对的数值数据
* 您有两个配合良好的变量
* 您想确定两个变量是否相关
* 您有一个自变量对应于因变量的多个取值 

以下 C++ 代码演示如何使用不同系列的标记创建散点图： 
```c++
// 文档目录的路径。
	const String outPath = u"../out/ScatteredChart_out.pptx";

	// 实例化一个表示 PPTX 文件的演示文稿类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 添加一个带默认数据的图表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ScatterWithSmoothLines, 0, 0, 500, 500);

	// 设置图表标题
	chart->get_ChartTitle()->AddTextFrameForOverriding(u"Sample Title");
	chart->get_ChartTitle()->get_TextFrameForOverriding()->get_TextFrameFormat()->set_CenterText(NullableBool::True);
	chart->get_ChartTitle()->set_Height(20);
	chart->set_HasTitle(true);

	// 删除默认生成的系列 
	chart->get_ChartData()->get_Series()->Clear();
	
	// 设置图表数据工作表的索引
	int defaultWorksheetIndex = 0;

	// 获取图表数据工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


	// 添加一个新系列
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 1, 1, ObjectExt::Box<System::String>(u"Series 1")), chart->get_Type());
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 1, 3, ObjectExt::Box<System::String>(u"Series 2")), chart->get_Type());

	// 获取第一条图表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 添加一个新点 (1:3)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 2, 1, ObjectExt::Box<double>(1)), fact->GetCell(defaultWorksheetIndex, 2, 2, ObjectExt::Box<double>(3)));

	// 添加一个新点 (2:10)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 3, 1, ObjectExt::Box<double>(2)), fact->GetCell(defaultWorksheetIndex, 3, 2, ObjectExt::Box<double>(10)));

	// 编辑系列类型
	series->set_Type (ChartType::ScatterWithStraightLinesAndMarkers);

	// 更改图表系列标记
	series->get_Marker()->set_Size  (10);
	series->get_Marker()->set_Symbol(MarkerStyleType::Star);



	// 获取第二条图表系列
	series  = chart->get_ChartData()->get_Series()->idx_get(1);

	// 添加新点 (5:2)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 2, 3, ObjectExt::Box<double>(5)), fact->GetCell(defaultWorksheetIndex, 2, 4, ObjectExt::Box<double>(2)));

	// 添加新点 (3:1)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 3, 3, ObjectExt::Box<double>(3)), fact->GetCell(defaultWorksheetIndex, 3, 4, ObjectExt::Box<double>(1)));

	// 添加新点 (2:2)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 4, 3, ObjectExt::Box<double>(2)), fact->GetCell(defaultWorksheetIndex, 4, 4, ObjectExt::Box<double>(2)));

	// 添加新点 (5:1)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 5, 3, ObjectExt::Box<double>(5)), fact->GetCell(defaultWorksheetIndex, 5, 4, ObjectExt::Box<double>(1)));

	// 更改图表系列标记
	series->get_Marker()->set_Size ( 10);
	series->get_Marker()->set_Symbol(MarkerStyleType::Circle);



	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_IsColorVaried(true);

	SharedPtr<IChartDataPoint> point = series->get_DataPoints()->idx_get(0);
	point->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Cyan());
	// 设置扇区边框
	point->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Gray());
	point->get_Format()->get_Line()->set_Width ( 3.0);
	point->get_Format()->get_Line()->set_Style(LineStyle::ThinThick);
	point->get_Format()->get_Line()->set_DashStyle(LineDashStyle::DashDot);

	SharedPtr<IChartDataPoint> point1 = series->get_DataPoints()->idx_get(1);
	point1->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point1->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Brown);

	// 设置扇区边框
	point1->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point1->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Blue);
	point1->get_Format()->get_Line()->set_Width (3.0);
	point1->get_Format()->get_Line()->set_Style(LineStyle::Single);
	point1->get_Format()->get_Line()->set_DashStyle(LineDashStyle::LargeDashDot);


	SharedPtr<IChartDataPoint> point2 = series->get_DataPoints()->idx_get(2);
	point2->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point2->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Coral);

	// 设置扇区边框
	point2->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point2->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Red);
	point2->get_Format()->get_Line()->set_Width ( 2.0);
	point2->get_Format()->get_Line()->set_Style(LineStyle::ThickThin);
	point2->get_Format()->get_Line()->set_DashStyle(LineDashStyle::LargeDashDotDot);


	// 为新系列的每个类别创建自定义标签
	SharedPtr<IDataLabel> lbl1 = series->get_DataPoints()->idx_get(0)->get_Label();

	// lbl.ShowCategoryName = true;
	lbl1->get_DataLabelFormat()->set_ShowValue(true);


	SharedPtr<IDataLabel> lbl2 = series->get_DataPoints()->idx_get(1)->get_Label();
	lbl2->get_DataLabelFormat()->set_ShowValue(true);
	lbl2->get_DataLabelFormat()->set_ShowLegendKey(true);
	lbl2->get_DataLabelFormat()->set_ShowPercentage(true);

	SharedPtr<IDataLabel> lbl3 = series->get_DataPoints()->idx_get(2)->get_Label();

	lbl3->get_DataLabelFormat()->set_ShowSeriesName(true);
	lbl3->get_DataLabelFormat()->set_ShowPercentage(true);

	// 显示图表的引导线
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowLeaderLines(true);

	// 设置饼图扇区的旋转角度
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_FirstSliceAngle(180);


	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建饼图**
饼图最适合用于展示数据的部分与整体的关系，尤其是当数据包含带数值的分类标签时。然而，如果您的数据包含许多部分或标签，您可能需要考虑改用条形图。 

1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型（本例中为 `ChartType.Pie`）。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 为图表添加新点并为饼图的扇区添加自定义颜色。  
1. 设置系列的标签。  
1. 为系列标签设置指引线。  
1. 设置饼图幻灯片的旋转角度。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建饼图：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/PieChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 添加一个带默认数据的图表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Pie, 0, 0, 500, 500);

	// 设置图表标题
	chart->get_ChartTitle()->AddTextFrameForOverriding(u"Sample Title");
	chart->get_ChartTitle()->get_TextFrameForOverriding()->get_TextFrameFormat()->set_CenterText(NullableBool::True);
	chart->get_ChartTitle()->set_Height(20);
	chart->set_HasTitle(true);

	// 删除默认生成的系列和类别
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();

	// 设置图表数据工作表的索引
	int defaultWorksheetIndex = 0;

	// 获取图表数据工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// 添加类别
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 1, 0, ObjectExt::Box<System::String>(u"First Qtr")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 2, 0, ObjectExt::Box<System::String>(u"2nd Qtr")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 3, 0, ObjectExt::Box<System::String>(u"3ed Qtr")));

	// 添加一个新系列
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 1, ObjectExt::Box<System::String>(u"Series 1")), chart->get_Type());
	
	// 获取第一条图表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 填充系列数据
	series->get_DataPoints()->AddDataPointForPieSeries(fact->GetCell(defaultWorksheetIndex, 1, 1, ObjectExt::Box<double>(20)));
	series->get_DataPoints()->AddDataPointForPieSeries(fact->GetCell(defaultWorksheetIndex, 2, 1, ObjectExt::Box<double>(50)));
	series->get_DataPoints()->AddDataPointForPieSeries(fact->GetCell(defaultWorksheetIndex, 3, 1, ObjectExt::Box<double>(30)));

	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_IsColorVaried(true);

	SharedPtr<IChartDataPoint> point = series->get_DataPoints()->idx_get(0);
	point->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Cyan());
	// 设置扇区边框
	point->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Gray());
	point->get_Format()->get_Line()->set_Width ( 3.0);
	point->get_Format()->get_Line()->set_Style( LineStyle::ThinThick);
	point->get_Format()->get_Line()->set_DashStyle ( LineDashStyle::DashDot);

	SharedPtr<IChartDataPoint> point1 = series->get_DataPoints()->idx_get(1);
	point1->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point1->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Brown());

	// 设置扇区边框
	point1->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point1->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Blue());
	point1->get_Format()->get_Line()->set_Width (3.0);
	point1->get_Format()->get_Line()->set_Style(LineStyle::Single);
	point1->get_Format()->get_Line()->set_DashStyle(LineDashStyle::LargeDashDot);


	SharedPtr<IChartDataPoint> point2 = series->get_DataPoints()->idx_get(2);
	point2->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	point2->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Coral());

	// 设置扇区边框
	point2->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
	point2->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Red());
	point2->get_Format()->get_Line()->set_Width (2.0);
	point2->get_Format()->get_Line()->set_Style(LineStyle::ThickThin);
	point2->get_Format()->get_Line()->set_DashStyle(LineDashStyle::LargeDashDotDot);


	// 为新系列的每个类别创建自定义标签
	SharedPtr<IDataLabel> lbl1 = series->get_DataPoints()->idx_get(0)->get_Label();

	// lbl.ShowCategoryName = true;
	lbl1->get_DataLabelFormat()->set_ShowValue(true);


	SharedPtr<IDataLabel> lbl2 = series->get_DataPoints()->idx_get(1)->get_Label();
	lbl2->get_DataLabelFormat()->set_ShowValue(true);
	lbl2->get_DataLabelFormat()->set_ShowLegendKey(true);
	lbl2->get_DataLabelFormat()->set_ShowPercentage(true);

	SharedPtr<IDataLabel> lbl3 = series->get_DataPoints()->idx_get(2)->get_Label();

	lbl3->get_DataLabelFormat()->set_ShowSeriesName(true);
	lbl3->get_DataLabelFormat()->set_ShowPercentage(true);

	// 设置系列以在图表中显示引导线
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowLeaderLines ( true);

	// 设置饼图扇区的旋转角度
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_FirstSliceAngle ( 180);


	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建折线图**
折线图（也称为折线图）最适合用于展示随时间变化的数值。使用折线图，您可以一次比较大量数据，跟踪随时间的变化和趋势，突出显示数据系列中的异常等。 

1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型（本例中为 `ChartType::Line`）。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建折线图：
```c++
auto pres = System::MakeObject<Presentation>();

System::SharedPtr<IChart> lineChart = pres->get_Slides()->idx_get(0)->get_Shapes()->AddChart(ChartType::Line, 10.0f, 50.0f, 600.0f, 350.0f);
pres->Save(u"lineChart.pptx", SaveFormat::Pptx);
```


默认情况下，折线图的点通过直线连续相连。如果您希望点之间使用虚线相连，可以通过以下方式指定首选的虚线类型：
```c++
System::SharedPtr<IChart> lineChart = pres->get_Slides()->idx_get(0)->get_Shapes()->AddChart(ChartType::Line, 10.0f, 50.0f, 600.0f, 350.0f);
for (auto&& series : lineChart->get_ChartData()->get_Series())
{
    series->get_Format()->get_Line()->set_DashStyle(LineDashStyle::Dash);
}
```


### **创建树状图**
树状图最适合用于销售数据，当您想显示数据类别的相对大小并（同时）快速突出每个类别中贡献较大的项时。 

1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型（本例中为 `ChartType.TreeMap`）。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建树状图：
```c++
// 文档目录的路径。
	const String outPath = u"../out/TreemapChart_out.pptx";

	//实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	System::SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Treemap, 50, 50, 500, 400);
	chart->get_ChartData()->get_Categories()->Clear();
	chart->get_ChartData()->get_Series()->Clear();

	System::SharedPtr<IChartDataWorkbook> wb = chart->get_ChartData()->get_ChartDataWorkbook();

	wb->Clear(0);

	// Branch 1
	System::SharedPtr<IChartCategory> leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C1", System::ObjectExt::Box<System::String>(u"Leaf1")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem1"));
	leaf->get_GroupingLevels()->SetGroupingItem(2, System::ObjectExt::Box<System::String>(u"Branch1"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C2", System::ObjectExt::Box<System::String>(u"Leaf2")));

	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C3", System::ObjectExt::Box<System::String>(u"Leaf3")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem2"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C4", System::ObjectExt::Box<System::String>(u"Leaf4")));


	// Branch 2
	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C5", System::ObjectExt::Box<System::String>(u"Leaf5")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem3"));
	leaf->get_GroupingLevels()->SetGroupingItem(2, System::ObjectExt::Box<System::String>(u"Branch2"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C6", System::ObjectExt::Box<System::String>(u"Leaf6")));

	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C7", System::ObjectExt::Box<System::String>(u"Leaf7")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem4"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C8", System::ObjectExt::Box<System::String>(u"Leaf8")));

	System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::Treemap);
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowCategoryName(true);
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D1", System::ObjectExt::Box<int32_t>(4)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D2", System::ObjectExt::Box<int32_t>(5)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D3", System::ObjectExt::Box<int32_t>(3)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D4", System::ObjectExt::Box<int32_t>(6)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D5", System::ObjectExt::Box<int32_t>(9)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D6", System::ObjectExt::Box<int32_t>(9)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D7", System::ObjectExt::Box<int32_t>(4)));
	series->get_DataPoints()->AddDataPointForTreemapSeries(wb->GetCell(0, u"D8", System::ObjectExt::Box<int32_t>(3)));

	series->set_ParentLabelLayout(Aspose::Slides::Charts::ParentLabelLayoutType::Overlapping);

	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建股票图表**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型 (ChartType.OpenHighLowClose)。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 指定 HiLowLines 格式。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下示例 C++ 代码用于创建股票图表：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/AddStockChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 添加一个带默认数据的图表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::OpenHighLowClose, 0, 0, 500, 500);


	// 设置图表数据工作表的索引
	int defaultWorksheetIndex = 0;

	// 获取图表数据工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


	// 删除默认生成的系列和类别
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();

	// 添加类别
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 1, 0, ObjectExt::Box<System::String>(u"A")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 2, 0, ObjectExt::Box<System::String>(u"B")));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, 3, 0, ObjectExt::Box<System::String>(u"C")));

	// 添加一个新系列
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 1, ObjectExt::Box<System::String>(u"Open")), chart->get_Type());
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 2, ObjectExt::Box<System::String>(u"High")), chart->get_Type());
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 3, ObjectExt::Box<System::String>(u"Low")), chart->get_Type());
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 4, ObjectExt::Box<System::String>(u"Close")), chart->get_Type());


	// 获取第一条图表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);
	// 填充第一系列数据
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 1, 1, ObjectExt::Box<double>(72)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 2, 1, ObjectExt::Box<double>(25)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 3, 1, ObjectExt::Box<double>(38)));


	series = chart->get_ChartData()->get_Series()->idx_get(1);
	// 填充第二系列数据
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 1, 2, ObjectExt::Box<double>(172)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 2, 2, ObjectExt::Box<double>(57)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 3, 2, ObjectExt::Box<double>(57)));

	series = chart->get_ChartData()->get_Series()->idx_get(2);
	// 填充第二系列数据
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 1, 3, ObjectExt::Box<double>(12)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 2, 3, ObjectExt::Box<double>(12)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 3, 3, ObjectExt::Box<double>(13)));


	series = chart->get_ChartData()->get_Series()->idx_get(3);
	// 填充第二系列数据
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 1, 4, ObjectExt::Box<double>(25)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 2, 4, ObjectExt::Box<double>(38)));
	series->get_DataPoints()->AddDataPointForStockSeries(fact->GetCell(defaultWorksheetIndex, 3, 4, ObjectExt::Box<double>(50)));

	// 设置系列组
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->get_UpDownBars()->set_HasUpDownBars (true);
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->get_HiLowLinesFormat()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);


	for(int i=0;i<chart->get_ChartData()->get_Series()->get_Count();i++)
	{
		series = chart->get_ChartData()->get_Series()->idx_get(i);
		series->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);
	}

	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建箱线图**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型 (ChartType.BoxAndWhisker)。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建箱线图：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/BoxAndWhisker_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	System::SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::BoxAndWhisker, 50, 50, 500, 400);
	chart->get_ChartData()->get_Categories()->Clear();
	chart->get_ChartData()->get_Series()->Clear();

	System::SharedPtr<IChartDataWorkbook> wb = chart->get_ChartData()->get_ChartDataWorkbook();

	wb->Clear(0);

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A1", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A2", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A3", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A4", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A5", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A6", System::ObjectExt::Box<System::String>(u"Category 1")));

	System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::BoxAndWhisker);

	series->set_QuartileMethod(Aspose::Slides::Charts::QuartileMethodType::Exclusive);
	series->set_ShowMeanLine(true);
	series->set_ShowMeanMarkers(true);
	series->set_ShowInnerPoints(true);
	series->set_ShowOutlierPoints(true);

	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B1", System::ObjectExt::Box<int32_t>(15)));
	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B2", System::ObjectExt::Box<int32_t>(41)));
	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B3", System::ObjectExt::Box<int32_t>(16)));
	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B4", System::ObjectExt::Box<int32_t>(10)));
	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B5", System::ObjectExt::Box<int32_t>(23)));
	series->get_DataPoints()->AddDataPointForBoxAndWhiskerSeries(wb->GetCell(0, u"B6", System::ObjectExt::Box<int32_t>(16)));


	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建漏斗图**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型 (ChartType.Funnel)。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建漏斗图：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/FunnelChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	System::SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Funnel, 50, 50, 500, 400);
	chart->get_ChartData()->get_Categories()->Clear();
	chart->get_ChartData()->get_Series()->Clear();

	System::SharedPtr<IChartDataWorkbook> wb = chart->get_ChartData()->get_ChartDataWorkbook();

	wb->Clear(0);

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A1", System::ObjectExt::Box<System::String>(u"Category 1")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A2", System::ObjectExt::Box<System::String>(u"Category 2")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A3", System::ObjectExt::Box<System::String>(u"Category 3")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A4", System::ObjectExt::Box<System::String>(u"Category 4")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A5", System::ObjectExt::Box<System::String>(u"Category 5")));
	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A6", System::ObjectExt::Box<System::String>(u"Category 6")));

	System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::Funnel);

	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B1", System::ObjectExt::Box<int32_t>(50)));
	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B2", System::ObjectExt::Box<int32_t>(100)));
	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B3", System::ObjectExt::Box<int32_t>(200)));
	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B4", System::ObjectExt::Box<int32_t>(300)));
	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B5", System::ObjectExt::Box<int32_t>(400)));
	series->get_DataPoints()->AddDataPointForFunnelSeries(wb->GetCell(0, u"B6", System::ObjectExt::Box<int32_t>(500)));


	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建旭辉图**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型 (在本例中为 `ChartType.sunburst`)。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建旭辉图：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/SunburstChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	System::SharedPtr<IChart> chart=slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Sunburst, 50, 50, 500, 400);
	chart->get_ChartData()->get_Categories()->Clear();
	chart->get_ChartData()->get_Series()->Clear();

	System::SharedPtr<IChartDataWorkbook> wb = chart->get_ChartData()->get_ChartDataWorkbook();

	wb->Clear(0);

	// 分支 1
	System::SharedPtr<IChartCategory> leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C1", System::ObjectExt::Box<System::String>(u"Leaf1")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem1"));
	leaf->get_GroupingLevels()->SetGroupingItem(2, System::ObjectExt::Box<System::String>(u"Branch1"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C2", System::ObjectExt::Box<System::String>(u"Leaf2")));

	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C3", System::ObjectExt::Box<System::String>(u"Leaf3")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem2"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C4", System::ObjectExt::Box<System::String>(u"Leaf4")));

	// 分支 2
	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C5", System::ObjectExt::Box<System::String>(u"Leaf5")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem3"));
	leaf->get_GroupingLevels()->SetGroupingItem(2, System::ObjectExt::Box<System::String>(u"Branch2"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C6", System::ObjectExt::Box<System::String>(u"Leaf6")));

	leaf = chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C7", System::ObjectExt::Box<System::String>(u"Leaf7")));
	leaf->get_GroupingLevels()->SetGroupingItem(1, System::ObjectExt::Box<System::String>(u"Stem4"));

	chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"C8", System::ObjectExt::Box<System::String>(u"Leaf8")));

	System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::Sunburst);
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowCategoryName(true);
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D1", System::ObjectExt::Box<int32_t>(4)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D2", System::ObjectExt::Box<int32_t>(5)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D3", System::ObjectExt::Box<int32_t>(3)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D4", System::ObjectExt::Box<int32_t>(6)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D5", System::ObjectExt::Box<int32_t>(9)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D6", System::ObjectExt::Box<int32_t>(9)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D7", System::ObjectExt::Box<int32_t>(4)));
	series->get_DataPoints()->AddDataPointForSunburstSeries(wb->GetCell(0, u"D8", System::ObjectExt::Box<int32_t>(3)));

	// 将演示文稿写入磁盘
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建直方图**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一些带数据的图表，并指定所需类型（本例中为 `ChartType.Histogram`）。  
1. 访问图表数据 `IChartDataWorkbook`。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 将修改后的演示文稿写入 PPTX 文件。  

以下 C++ 代码演示如何创建直方图：
```c++
	// 文档目录的路径。
	const String outPath = u"../out/HistogramChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	System::SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Histogram, 50, 50, 500, 400);
	chart->get_ChartData()->get_Categories()->Clear();
	chart->get_ChartData()->get_Series()->Clear();

	System::SharedPtr<IChartDataWorkbook> wb = chart->get_ChartData()->get_ChartDataWorkbook();

	wb->Clear(0);

	System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::Histogram);
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A1", System::ObjectExt::Box<int32_t>(15)));
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A2", System::ObjectExt::Box<int32_t>(-41)));
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A3", System::ObjectExt::Box<int32_t>(16)));
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A4", System::ObjectExt::Box<int32_t>(10)));
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A5", System::ObjectExt::Box<int32_t>(-23)));
	series->get_DataPoints()->AddDataPointForHistogramSeries(wb->GetCell(0, u"A6", System::ObjectExt::Box<int32_t>(16)));

	chart->get_Axes()->get_HorizontalAxis()->set_AggregationType(Aspose::Slides::Charts::AxisAggregationType::Automatic);

	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建雷达图**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一些带数据的图表，并指定所需类型（本例中为 `ChartType.Radar`）。  
1. 将修改后的演示文稿写入 PPTX 文件  

以下 C++ 代码演示如何创建雷达图：
```c++
System::SharedPtr<Presentation> presentation = System::MakeObject<Presentation>();

presentation->get_Slides()->idx_get(0)->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Radar, 20.0f, 20.0f, 400.0f, 300.0f);
presentation->Save(u"Radar-chart.pptx", Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建多类别图表**
1. 创建 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类的实例。  
1. 通过索引获取幻灯片的引用。  
1. 添加一个默认数据的图表，并指定所需类型 (ChartType.ClusteredColumn)。  
1. 访问图表数据 IChartDataWorkbook。  
1. 清除默认的系列和类别。  
1. 添加新的系列和类别。  
1. 为图表系列添加新的图表数据。  
1. 将修改后的演示文稿写入 PPTX 文件。  

以下 C++ 代码演示如何创建多类别图表：
```c++
// 文档目录的路径。
	const String outPath = u"../out/MultiCategoryChart_out.pptx";

	// 实例化一个表示 PPTX 文件的 Presentation 类
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 访问第一张幻灯片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 添加一个带默认数据的图表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ClusteredColumn, 0, 0, 500, 500);

	// 设置图表数据工作表的索引
	int defaultWorksheetIndex = 0;

	// 获取图表数据工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// 清空工作簿
	fact->Clear(defaultWorksheetIndex);

	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();


	// 添加类别
	SharedPtr<IChartCategory> category = chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c2", ObjectExt::Box<System::String>(u"A")));
	category->get_GroupingLevels()->SetGroupingItem(1, ObjectExt::Box<System::String>(u"Group1"));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c3", ObjectExt::Box<System::String>(u"B")));
	
	category = chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c4", ObjectExt::Box<System::String>(u"C")));
	category->get_GroupingLevels()->SetGroupingItem(1, ObjectExt::Box<System::String>(u"Group2"));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c5", ObjectExt::Box<System::String>(u"D")));

	category = chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c6", ObjectExt::Box<System::String>(u"E")));
	category->get_GroupingLevels()->SetGroupingItem(1, ObjectExt::Box<System::String>(u"Group3"));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c7", ObjectExt::Box<System::String>(u"F")));


	category = chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c8", ObjectExt::Box<System::String>(u"G")));
	category->get_GroupingLevels()->SetGroupingItem(1, ObjectExt::Box<System::String>(u"Group4"));
	chart->get_ChartData()->get_Categories()->Add(fact->GetCell(defaultWorksheetIndex, u"c9", ObjectExt::Box<System::String>(u"H")));

	// 添加一个新系列
	SharedPtr<IChartSeries>  series = chart->get_ChartData()->get_Series()->Add(fact->GetCell(0, u"D1", ObjectExt::Box<System::String>(u"Series 1")),
		ChartType::ClusteredColumn);

	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D2", ObjectExt::Box<double>(10)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D3", ObjectExt::Box<double>(20)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D4", ObjectExt::Box<double>(30)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D5", ObjectExt::Box<double>(40)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D6", ObjectExt::Box<double>(50)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D7", ObjectExt::Box<double>(60)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D8", ObjectExt::Box<double>(70)));
	series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, u"D9", ObjectExt::Box<double>(80)));

	// 保存演示文稿
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```


### **创建地图图表**
地图图表是对包含数据的区域进行可视化的图表。地图图表最适合用于比较不同地理区域的数据或数值。 

以下 C++ 代码演示如何创建地图图表：
```c++
auto pres = System::MakeObject<Presentation>();
auto slide = pres->get_Slides()->idx_get(0);
auto chart = slide->get_Shapes()->AddChart(ChartType::Map, 50.0f, 50.0f, 500.0f, 400.0f);
pres->Save(u"mapChart.pptx", SaveFormat::Pptx);
```


### **创建组合图表**
组合图表（或称组合图）在单个图形中合并两种或多种图表类型。该图表可帮助您突出、比较或检查两个或多个数据集之间的差异，从而识别它们之间的关系。 

![组合图表](combination_chart.png)

以下 C++ 代码演示如何在 PowerPoint 演示文稿中创建上述组合图表：
```cpp
static SharedPtr<IChart> CreateChartWithFirstSeries(SharedPtr<ISlide> slide)
{
    auto chart = slide->get_Shapes()->AddChart(ChartType::ClusteredColumn, 50, 50, 600, 400);

    // 设置图表标题。
    chart->set_HasTitle(true);
    chart->get_ChartTitle()->AddTextFrameForOverriding(u"Chart Title");
    chart->get_ChartTitle()->set_Overlay(false);
    auto titleParagraph = chart->get_ChartTitle()->get_TextFrameForOverriding()->get_Paragraph(0);
    auto titleFormat = titleParagraph->get_ParagraphFormat()->get_DefaultPortionFormat();
    titleFormat->set_FontBold(NullableBool::False);
    titleFormat->set_FontHeight(18.0);

    // 设置图例。
    chart->get_Legend()->set_Position(LegendPositionType::Bottom);
    chart->get_Legend()->get_TextFormat()->get_PortionFormat()->set_FontHeight(12.0);

    // 删除默认生成的系列和类别。
    chart->get_ChartData()->get_Series()->Clear();
    chart->get_ChartData()->get_Categories()->Clear();

    const int worksheetIndex = 0;
    auto workbook = chart->get_ChartData()->get_ChartDataWorkbook();

    // 添加新类别。
    chart->get_ChartData()->get_Categories()->Add(workbook->GetCell(worksheetIndex, 1, 0, ObjectExt::Box<String>(u"Category 1")));
    chart->get_ChartData()->get_Categories()->Add(workbook->GetCell(worksheetIndex, 2, 0, ObjectExt::Box<String>(u"Category 2")));
    chart->get_ChartData()->get_Categories()->Add(workbook->GetCell(worksheetIndex, 3, 0, ObjectExt::Box<String>(u"Category 3")));
    chart->get_ChartData()->get_Categories()->Add(workbook->GetCell(worksheetIndex, 4, 0, ObjectExt::Box<String>(u"Category 4")));

    // 添加第一个系列。
    auto seriesNameCell = workbook->GetCell(worksheetIndex, 0, 1, ObjectExt::Box<String>(u"Series 1"));
    auto series = chart->get_ChartData()->get_Series()->Add(seriesNameCell, chart->get_Type());

    series->get_ParentSeriesGroup()->set_Overlap(-25);
    series->get_ParentSeriesGroup()->set_GapWidth(220);

    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 1, 1, ObjectExt::Box<double>(4.3)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 2, 1, ObjectExt::Box<double>(2.5)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 3, 1, ObjectExt::Box<double>(3.5)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 4, 1, ObjectExt::Box<double>(4.5)));

    return chart;
}

static void AddSecondSeriesToChart(SharedPtr<IChart> chart)
{
    auto workbook = chart->get_ChartData()->get_ChartDataWorkbook();
    const int worksheetIndex = 0;

    auto seriesNameCell = workbook->GetCell(worksheetIndex, 0, 2, ObjectExt::Box<String>(u"Series 2"));
    auto series = chart->get_ChartData()->get_Series()->Add(seriesNameCell, ChartType::ClusteredColumn);

    series->get_ParentSeriesGroup()->set_Overlap(-25);
    series->get_ParentSeriesGroup()->set_GapWidth(220);

    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 1, 2, ObjectExt::Box<double>(2.4)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 2, 2, ObjectExt::Box<double>(4.4)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 3, 2, ObjectExt::Box<double>(1.8)));
    series->get_DataPoints()->AddDataPointForBarSeries(workbook->GetCell(worksheetIndex, 4, 2, ObjectExt::Box<double>(2.8)));
}

static void AddThirdSeriesToChart(SharedPtr<IChart> chart)
{
    auto workbook = chart->get_ChartData()->get_ChartDataWorkbook();
    const int worksheetIndex = 0;

    auto seriesNameCell = workbook->GetCell(worksheetIndex, 0, 3, ObjectExt::Box<String>(u"Series 3"));
    auto series = chart->get_ChartData()->get_Series()->Add(seriesNameCell, ChartType::Line);

    series->get_DataPoints()->AddDataPointForLineSeries(workbook->GetCell(worksheetIndex, 1, 3, ObjectExt::Box<double>(2.0)));
    series->get_DataPoints()->AddDataPointForLineSeries(workbook->GetCell(worksheetIndex, 2, 3, ObjectExt::Box<double>(2.0)));
    series->get_DataPoints()->AddDataPointForLineSeries(workbook->GetCell(worksheetIndex, 3, 3, ObjectExt::Box<double>(3.0)));
    series->get_DataPoints()->AddDataPointForLineSeries(workbook->GetCell(worksheetIndex, 4, 3, ObjectExt::Box<double>(5.0)));

    series->set_PlotOnSecondAxis(true);
}

static void SetAxisTitle(SharedPtr<IAxis> axis, String axisTitle)
{
    axis->set_HasTitle(true);
    axis->get_Title()->set_Overlay(false);
    auto titleParagraph = axis->get_Title()->AddTextFrameForOverriding(axisTitle)->get_Paragraph(0);
    auto titleFormat = titleParagraph->get_ParagraphFormat()->get_DefaultPortionFormat();
    titleFormat->set_FontBold(NullableBool::False);
    titleFormat->set_FontHeight(12.0);
}

static void SetPrimaryAxesFormat(SharedPtr<IChart> chart)
{
    // 设置水平轴。
    auto horizontalAxis = chart->get_Axes()->get_HorizontalAxis();
    horizontalAxis->get_TextFormat()->get_PortionFormat()->set_FontHeight(12.0);
    horizontalAxis->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);

    SetAxisTitle(horizontalAxis, u"X Axis");

    // 设置垂直轴。
    auto verticalAxis = chart->get_Axes()->get_VerticalAxis();
    verticalAxis->get_TextFormat()->get_PortionFormat()->set_FontHeight(12.0);
    verticalAxis->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);

    SetAxisTitle(verticalAxis, u"Y Axis 1");

    // 设置垂直主网格线颜色。
    auto majorGridLinesFormat = verticalAxis->get_MajorGridLinesFormat()->get_Line()->get_FillFormat();
    majorGridLinesFormat->set_FillType(FillType::Solid);
    majorGridLinesFormat->get_SolidFillColor()->set_Color(Color::FromArgb(217, 217, 217));
}

static void SetSecondaryAxesFormat(SharedPtr<IChart> chart)
{
    // 设置次要水平轴。
    auto secondaryHorizontalAxis = chart->get_Axes()->get_SecondaryHorizontalAxis();
    secondaryHorizontalAxis->set_Position(AxisPositionType::Bottom);
    secondaryHorizontalAxis->set_CrossType(CrossesType::Maximum);
    secondaryHorizontalAxis->set_IsVisible(false);
    secondaryHorizontalAxis->get_MajorGridLinesFormat()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);
    secondaryHorizontalAxis->get_MinorGridLinesFormat()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);

    // 设置次要垂直轴。
    auto secondaryVerticalAxis = chart->get_Axes()->get_SecondaryVerticalAxis();
    secondaryVerticalAxis->set_Position(AxisPositionType::Right);
    secondaryVerticalAxis->get_TextFormat()->get_PortionFormat()->set_FontHeight(12.0);
    secondaryVerticalAxis->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);
    secondaryVerticalAxis->get_MajorGridLinesFormat()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);
    secondaryVerticalAxis->get_MinorGridLinesFormat()->get_Line()->get_FillFormat()->set_FillType(FillType::NoFill);

    SetAxisTitle(secondaryVerticalAxis, u"Y Axis 2");
}

static void CreateComboChart()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto chart = CreateChartWithFirstSeries(slide);

    AddSecondSeriesToChart(chart);
    AddThirdSeriesToChart(chart);

    SetPrimaryAxesFormat(chart);
    SetSecondaryAxesFormat(chart);

    presentation->Save(u"combo-chart.pptx", SaveFormat::Pptx);
    presentation->Dispose();
}
```


## **更新图表**

1. 实例化一个表示包含该图表的 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类。  
2. 通过索引获取幻灯片的引用。  
3. 遍历所有形状以找到目标图表。  
4. 访问图表数据工作表。  
5. 通过更改系列值来修改图表数据系列。  
6. 添加新系列并填充数据。  
7. 将修改后的演示文稿写入为 PPTX 文件。  

以下 C++ 代码演示如何更新图表：
```c++
// 实例化一个表示 PPTX 文件的 Presentation 类
System::SharedPtr<Presentation> pres = System::MakeObject<Presentation>(u"ExistingChart.pptx");

// 访问第一张幻灯片
System::SharedPtr<ISlide> sld = pres->get_Slides()->idx_get(0);

// 添加一个带默认数据的图表
System::SharedPtr<IChart> chart = System::ExplicitCast<Aspose::Slides::Charts::IChart>(sld->get_Shapes()->idx_get(0));

// 设置图表数据工作表的索引
int32_t defaultWorksheetIndex = 0;

// 获取图表数据工作表
System::SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


// 更改图表类别名称
fact->GetCell(defaultWorksheetIndex, 1, 0, System::ObjectExt::Box<System::String>(u"Modified Category 1"));
fact->GetCell(defaultWorksheetIndex, 2, 0, System::ObjectExt::Box<System::String>(u"Modified Category 2"));

// 获取第一条图表系列
System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

// 更新系列数据
fact->GetCell(defaultWorksheetIndex, 0, 1, System::ObjectExt::Box<System::String>(u"New_Series1"));
// 修改系列名称
series->get_DataPoints()->idx_get(0)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(90));
series->get_DataPoints()->idx_get(1)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(123));
series->get_DataPoints()->idx_get(2)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(44));

// 获取第二条图表系列
series = chart->get_ChartData()->get_Series()->idx_get(1);

// 现在更新系列数据
fact->GetCell(defaultWorksheetIndex, 0, 2, System::ObjectExt::Box<System::String>(u"New_Series2"));
// 修改系列名称
series->get_DataPoints()->idx_get(0)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(23));
series->get_DataPoints()->idx_get(1)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(67));
series->get_DataPoints()->idx_get(2)->get_Value()->set_Data(System::ObjectExt::Box<int32_t>(99));


// 现在，添加新系列
chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 3, System::ObjectExt::Box<System::String>(u"Series 3")), chart->get_Type());

// 获取第三条图表系列
series = chart->get_ChartData()->get_Series()->idx_get(2);

// 现在填充系列数据
series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 1, 3, System::ObjectExt::Box<int32_t>(20)));
series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 2, 3, System::ObjectExt::Box<int32_t>(50)));
series->get_DataPoints()->AddDataPointForBarSeries(fact->GetCell(defaultWorksheetIndex, 3, 3, System::ObjectExt::Box<int32_t>(30)));

chart->set_Type(Aspose::Slides::Charts::ChartType::ClusteredCylinder);

// 保存包含图表的演示文稿
pres->Save(u"AsposeChartModified_out.pptx", Aspose::Slides::Export::SaveFormat::Pptx);
```



## **设置图表的数据范围**

1. 打开包含该图表的 [Presentation](https://reference.aspose.com/slides/cpp/class/aspose.slides.presentation) 类实例。  
2. 通过索引获取幻灯片的引用。  
3. 遍历所有形状以找到目标图表。  
4. 访问图表数据并设置范围。  
5. 将修改后的演示文稿保存为 PPTX 文件。  

以下 C++ 代码演示如何设置图表的数据范围：
```cpp
// 文档目录的路径。
String dataDir = GetDataPath();

// 实例化一个表示 PPTX 文件的 Presentation 类
auto presentation = System::MakeObject<Presentation>(dataDir + u"ExistingChart.pptx");

// 访问第一张幻灯片并添加一个带默认数据的图表
auto slide = presentation->get_Slides()->idx_get(0);
auto chart = System::ExplicitCast<IChart>(slide->get_Shapes()->idx_get(0));
chart->get_ChartData()->SetRange(u"Sheet1!A1:B4");
presentation->Save(dataDir + u"SetDataRange_out.pptx", SaveFormat::Pptx);
```



## **在图表中使用默认标记**

在图表中使用默认标记时，每个图表系列会自动获得不同的默认标记符号。  

以下 C++ 代码演示如何自动设置图表系列的标记：
```cpp
// 文档目录的路径。
String dataDir = GetDataPath();

auto pres = System::MakeObject<Presentation>();

auto slide = pres->get_Slides()->idx_get(0);
auto chart = slide->get_Shapes()->AddChart(ChartType::LineWithMarkers, 10.0f, 10.0f, 400.0f, 400.0f);

chart->get_ChartData()->get_Series()->Clear();
chart->get_ChartData()->get_Categories()->Clear();

auto wb = chart->get_ChartData()->get_ChartDataWorkbook();
chart->get_ChartData()->get_Series()->Add(wb->GetCell(0, 0, 1, ObjectExt::Box<String>(u"Series 1")), chart->get_Type());
auto series = chart->get_ChartData()->get_Series()->idx_get(0);

chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, 1, 0, ObjectExt::Box<String>(u"C1")));
series->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 1, 1, ObjectExt::Box<int32_t>(24)));
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, 2, 0, ObjectExt::Box<String>(u"C2")));
series->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 2, 1, ObjectExt::Box<int32_t>(23)));
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, 3, 0, ObjectExt::Box<String>(u"C3")));
series->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 3, 1, ObjectExt::Box<int32_t>(-10)));
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, 4, 0, ObjectExt::Box<String>(u"C4")));
series->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 4, 1, nullptr));

chart->get_ChartData()->get_Series()->Add(wb->GetCell(0, 0, 2, ObjectExt::Box<String>(u"Series 2")), chart->get_Type());

// 获取第二个图表系列
auto series2 = chart->get_ChartData()->get_Series()->idx_get(1);

// 填充系列数据
series2->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 1, 2, ObjectExt::Box<int32_t>(30)));
series2->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 2, 2, ObjectExt::Box<int32_t>(10)));
series2->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 3, 2, ObjectExt::Box<int32_t>(60)));
series2->get_DataPoints()->AddDataPointForLineSeries(wb->GetCell(0, 4, 2, ObjectExt::Box<int32_t>(40)));

chart->set_HasLegend(true);
chart->get_Legend()->set_Overlay(false);

pres->Save(dataDir + u"DefaultMarkersInChart.pptx", SaveFormat::Pptx);
```


## **常见问题**

**Aspose.Slides 支持哪些图表类型？**

Aspose.Slides 支持包括柱形图、折线图、饼图、面积图、散点图、直方图、雷达图等在内的多种图表类型。这种灵活性使您能够根据数据可视化需求选择最合适的图表类型。

**如何向幻灯片添加新图表？**

要添加图表，首先实例化 [Presentation](https://reference.aspose.com/slides/cpp/aspose.slides/presentation/) 类，使用索引获取目标幻灯片，然后调用添加图表的方法，指定图表类型和初始数据。此过程可将图表直接嵌入到您的演示文稿中。

**如何更新图表中显示的数据？**

您可以通过访问其数据工作簿 ([IChartDataWorkbook](https://reference.aspose.com/slides/cpp/aspose.slides.charts/ichartdataworkbook/))，清除默认的系列和类别，然后添加自定义数据，从而以编程方式刷新图表以显示最新数据。

**是否可以自定义图表的外观？**

是的，Aspose.Slides 提供了丰富的自定义选项。您可以修改颜色、字体、标签、图例以及其他格式元素，以满足特定的设计需求。