# 在 C++ 中建立或更新 PowerPoint 簡報圖表

> 使用 Aspose.Slides for C++ 在 PowerPoint 簡報中建立與自訂圖表。透過實用的 C++ 程式碼範例，新增、格式化與編輯圖表。

Source: https://docs.aspose.com/slides/zh-hant/cpp/create-chart/


## **概述**

本文提供了使用 Aspose.Slides 建立與自訂圖表的完整指南。您將學習如何以程式方式將圖表加入投影片、填入資料，並套用各種格式設定以符合特定設計需求。全篇皆以詳細程式碼範例說明每個步驟，從初始化簡報與圖表物件到設定系列、座標軸與圖例。遵循本指南，您即可深入了解如何在應用程式中整合動態圖表產生，簡化製作資料驅動簡報的流程。

## **建立圖表**

圖表可協助人們快速視覺化資料並獲得洞察，這些資訊往往在表格或試算表中不易立即看見。

**為何建立圖表？**

使用圖表，您可以

* 在單一投影片上彙總、濃縮或摘要大量資料
* 顯示資料中的模式與趨勢
* 推斷資料隨時間或特定量測單位的方向與動能
* 察覺異常值、偏差、錯誤或不合理的資料
* 傳達或呈現複雜的資料

在 PowerPoint 中，您可以透過「插入」功能建立圖表，該功能提供多種圖表模板。使用 Aspose.Slides，您可以建立一般圖表（基於常見圖表類型）以及自訂圖表。

{{% alert color="primary" %}} 
為了讓您能建立圖表，Aspose.Slides 在 [Aspose::Slides::Charts](https://reference.aspose.com/slides/zh-hant/cpp/namespace/aspose.slides.charts/) 命名空間下提供了 [ChartType](https://reference.aspose.com/slides/zh-hant/cpp/namespace/aspose.slides.charts#a23ba9ea390f5be4c8f5ab18baf4f8c05) 列舉類別。此列舉類別的值對應不同的圖表類型。 
{{% /alert %}} 

### **建立一般圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表並指定資料與您偏好的圖表類型。  
1. 為圖表新增標題。  
1. 取得圖表資料工作表。  
1. 清除所有預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 為圖表系列設定填色。  
1. 為圖表系列新增標籤。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立一般圖表：

```c++
// 文件目錄的路徑。
	const String outPath = u"../out/NormalCharts_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 存取第一張投影片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 新增具有預設資料的圖表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ClusteredColumn, 0, 0, 500, 500);


	// 設定圖表資料工作表的索引
	int defaultWorksheetIndex = 0;

	// 取得圖表資料工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// 設定圖表標題
	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);

	// 刪除預設產生的系列與類別
	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();


	// 新增一個系列
	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());

	// 新增類別
	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")));

	
	// 取得第一個圖表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 填充系列資料
	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)));

	// 設定系列的填充顏色
	series->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	series->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Red());


	// 取得第二個圖表系列
	 series = chart->get_ChartData()->get_Series()->idx_get(1);

	// 填充系列資料
	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)));

	// 設定系列的填充顏色
	series->get_Format()->get_Fill()->set_FillType(FillType::Solid);
	series->get_Format()->get_Fill()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_Green());


	// 第一個標籤設定為顯示類別名稱
	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);

	// 顯示第三個標籤的值
	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"/");

	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);

```

### **建立散佈圖表**
散佈圖表（亦稱散點圖或 X‑Y 圖）常用於檢查模式或顯示兩個變數之間的相關性。

當您符合下列條件時，可考慮使用散佈圖表

* 具備成對的數值資料
* 兩個變數彼此匹配良好
* 想判斷兩個變數是否相關
* 有一個自變數對應多個因變數的值

以下 C++ 程式碼示範如何建立具不同標記系列的散佈圖表：

```c++
// 文件目錄的路徑。
	const String outPath = u"../out/ScatteredChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 新增具有預設資料的圖表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ScatterWithSmoothLines, 0, 0, 500, 500);

	// 設定圖表標題
	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);

	// 刪除預設產生的系列 
	chart->get_ChartData()->get_Series()->Clear();
	
	// 設定圖表資料工作表的索引
	int defaultWorksheetIndex = 0;

	// 取得圖表資料工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


	// 新增一個系列
	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());

	// 取得第一個圖表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 新增一個資料點 (1:3)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 2, 1, ObjectExt::Box<double>(1)), fact->GetCell(defaultWorksheetIndex, 2, 2, ObjectExt::Box<double>(3)));

	// 新增一個資料點 (2:10)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 3, 1, ObjectExt::Box<double>(2)), fact->GetCell(defaultWorksheetIndex, 3, 2, ObjectExt::Box<double>(10)));

	// 編輯系列類型
	series->set_Type (ChartType::ScatterWithStraightLinesAndMarkers);

	// 變更圖表系列的標記
	series->get_Marker()->set_Size  (10);
	series->get_Marker()->set_Symbol(MarkerStyleType::Star);



	// 取得第二個圖表系列
	series  = chart->get_ChartData()->get_Series()->idx_get(1);

	// 新增資料點 (5:2)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 2, 3, ObjectExt::Box<double>(5)), fact->GetCell(defaultWorksheetIndex, 2, 4, ObjectExt::Box<double>(2)));

	// 新增資料點 (3:1)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 3, 3, ObjectExt::Box<double>(3)), fact->GetCell(defaultWorksheetIndex, 3, 4, ObjectExt::Box<double>(1)));

	// 新增資料點 (2:2)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 4, 3, ObjectExt::Box<double>(2)), fact->GetCell(defaultWorksheetIndex, 4, 4, ObjectExt::Box<double>(2)));

	// 新增資料點 (5:1)
	series->get_DataPoints()->AddDataPointForScatterSeries(fact->GetCell(defaultWorksheetIndex, 5, 3, ObjectExt::Box<double>(5)), fact->GetCell(defaultWorksheetIndex, 5, 4, ObjectExt::Box<double>(1)));

	// 變更圖表系列的標記
	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());
	// 設定扇區邊框
	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());

	// 設定扇區邊框
	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());

	// 設定扇區邊框
	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);


	// 為新系列的每個類別建立自訂標籤
	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);

	// 顯示圖表的引線
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowLeaderLines(true);

	// 設定圓形圖扇區的旋轉角度
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_FirstSliceAngle(180);


	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立圓形圖表**
圓形圖表最適合用來顯示資料的部分與整體關係，特別是當資料包含類別標籤與數值時。但若資料包含過多部份或標籤，建議改用長條圖。

1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（此例為 `ChartType.Pie`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 為圓形圖的各區段新增點並設定自訂顏色。  
1. 為系列設定標籤。  
1. 為系列標籤設定指示線。  
1. 設定圓形圖投影片的旋轉角度。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立圓形圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/PieChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 新增具有預設資料的圖表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Pie, 0, 0, 500, 500);

	// 設定圖表標題
	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);

	// 刪除預設產生的系列與類別
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();

	// 設定圖表資料工作表的索引
	int defaultWorksheetIndex = 0;

	// 取得圖表資料工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// 新增類別
	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")));

	// 新增一個系列
	chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 1, ObjectExt::Box<System::String>(u"Series 1")), chart->get_Type());
	
	// 取得第一個圖表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

	// 填充系列資料
	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());
	// 設定扇區邊框
	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());

	// 設定扇區邊框
	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());

	// 設定扇區邊框
	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);


	// 為新系列的每個類別建立自訂標籤
	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);

	// 設定系列顯示圖表的引線
	series->get_Labels()->get_DefaultDataLabelFormat()->set_ShowLeaderLines ( true);

	// 設定圓形圖扇區的旋轉角度
	chart->get_ChartData()->get_SeriesGroups()->idx_get(0)->set_FirstSliceAngle ( 180);


	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立折線圖表**

折線圖（亦稱折線圖）最適合用於顯示隨時間變化的數值。使用折線圖，您可以一次比較大量資料、追蹤時間趨勢、突顯資料系列中的異常等。

1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（此例為 `ChartType::Line`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立折線圖表：

```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);
```

預設情況下，折線圖的點會以直線連接。若希望以虛線連接點，可使用以下方式指定虛線類型：

```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);
}
```

### **建立樹狀圖表**

樹狀圖表最適合用於銷售資料，當您想顯示資料類別的相對大小，且同時快速突顯每個類別中貢獻較大的項目時。

1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（此例為 `ChartType.TreeMap`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立樹狀圖表：

```c++
// 文件目錄的路徑。
	const String outPath = u"../out/TreemapChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	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);

	// 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::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);

	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立股票圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（`ChartType.OpenHighLowClose`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 指定 HiLowLines 格式。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立股票圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/AddStockChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// 新增具有預設資料的圖表
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::OpenHighLowClose, 0, 0, 500, 500);


	// 設定圖表資料工作表的索引
	int defaultWorksheetIndex = 0;

	// 取得圖表資料工作表
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


	// 刪除預設產生的系列與類別
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();

	// 新增類別
	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")));

	// 新增一個系列
	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());


	// 取得第一個圖表系列
	SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);
	// 填充第一個系列資料
	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);
	// 填充第二個系列資料
	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);
	// 填充第二個系列資料
	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);
	// 填充第二個系列資料
	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)));

	// 設定系列群組
	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);
	}

	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立箱形圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（`ChartType.BoxAndWhisker`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立箱形圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/BoxAndWhisker_out.pptx";

	//Instantiates a Presentation class that represents a PPTX file
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	//Accesses the first slide
	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)));


	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立漏斗圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（`ChartType.Funnel`）。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立漏斗圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/FunnelChart_out.pptx";

	//實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	//取得第一張投影片
	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)));


	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立日光圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（此例為 `ChartType.sunburst`）。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立日光圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/SunburstChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	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)));

	// 將簡報檔案寫入磁碟
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);

```

### **建立直方圖表**
1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表並指定資料與您偏好的圖表類型（此例為 `ChartType.Histogram`）。  
1. 取得圖表資料 `IChartDataWorkbook`。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立直方圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/HistogramChart_out.pptx";

	// 實例化代表 PPTX 檔案的 Presentation 類別
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// 取得第一張投影片
	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);

	// 儲存簡報
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立雷達圖表**

1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表並指定資料與您偏好的圖表類型（此例為 `ChartType.Radar`）。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立雷達圖表：

```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);
```

### **建立多類別圖表**

1. 建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別的實例。  
1. 依索引取得投影片的參考。  
1. 加入圖表，使用預設資料並指定類型（`ChartType.ClusteredColumn`）。  
1. 取得圖表資料 IChartDataWorkbook。  
1. 清除預設的系列與類別。  
1. 新增系列與類別。  
1. 為圖表系列新增資料。  
1. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何建立多類別圖表：

```c++
	// 文件目錄的路徑。
	const String outPath = u"../out/MultiCategoryChart_out.pptx";

	//Instantiates a Presentation class that represents a PPTX file
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	//Accesses the first slide
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// Adds a chart with default data
	SharedPtr<IChart> chart = slide->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::ClusteredColumn, 0, 0, 500, 500);

	// Sets the index for the chart data sheet
	int defaultWorksheetIndex = 0;

	// Gets the chart data worksheet
	SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();

	// Clears the workbook
	fact->Clear(defaultWorksheetIndex);

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


	// Adds Categories
	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")));

	// Adds a new series
	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)));

	// Saves the presentation
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);
```

### **建立地圖圖表**

地圖圖表是將資料以區域視覺化的方式呈現，最適合比較不同地理區域之間的資料或數值。

以下 C++ 程式碼示範如何建立地圖圖表：

```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);
```

### **建立組合圖表**

組合圖表（或稱 combo 圖表）在同一圖表中結合兩種或以上的圖表類型。此圖表可讓您突顯、比較或檢視多組資料之間的差異，協助辨識它們之間的關係。

![The combination chart](combination_chart.png)

以下 C++ 程式碼示範如何在 PowerPoint 簡報中建立上述組合圖表：

```cpp
static SharedPtr<IChart> CreateChartWithFirstSeries(SharedPtr<ISlide> slide)
{
    auto chart = slide->get_Shapes()->AddChart(ChartType::ClusteredColumn, 50, 50, 600, 400);

    // 設定圖表標題。
    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);

    // 設定圖表圖例。
    chart->get_Legend()->set_Position(LegendPositionType::Bottom);
    chart->get_Legend()->get_TextFormat()->get_PortionFormat()->set_FontHeight(12.0);

    // 刪除預設產生的系列與類別。
    chart->get_ChartData()->get_Series()->Clear();
    chart->get_ChartData()->get_Categories()->Clear();

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

    // 新增類別。
    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")));

    // 新增第一個系列。
    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)
{
    // 設定水平軸。
    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");

    // 設定垂直軸。
    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");

    // 設定垂直主格線顏色。
    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)
{
    // 設定次要水平軸。
    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);

    // 設定次要垂直軸。
    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();
}
```

## **更新圖表**

1. 實例化表示包含圖表之簡報的 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 類別。  
2. 依索引取得投影片的參考。  
3. 遍歷所有圖形以找出目標圖表。  
4. 取得圖表資料工作表。  
5. 透過變更系列值來修改圖表系列的資料。  
6. 新增系列並填入資料。  
7. 將修改後的簡報寫入 PPTX 檔案。  

以下 C++ 程式碼示範如何更新圖表：

```c++
// 實例化代表 PPTX 檔案的 Presentation 類別
System::SharedPtr<Presentation> pres = System::MakeObject<Presentation>(u"ExistingChart.pptx");

// 取得第一張投影片
System::SharedPtr<ISlide> sld = pres->get_Slides()->idx_get(0);

// 新增具有預設資料的圖表
System::SharedPtr<IChart> chart = System::ExplicitCast<Aspose::Slides::Charts::IChart>(sld->get_Shapes()->idx_get(0));

// 設定圖表資料工作表的索引
int32_t defaultWorksheetIndex = 0;

// 取得圖表資料工作表
System::SharedPtr<IChartDataWorkbook> fact = chart->get_ChartData()->get_ChartDataWorkbook();


// 變更圖表類別名稱
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"));

// 取得第一個圖表系列
System::SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->idx_get(0);

// 更新系列資料
fact->GetCell(defaultWorksheetIndex, 0, 1, System::ObjectExt::Box<System::String>(u"New_Series1"));
// 修改系列名稱
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));

// 取得第二個圖表系列
series = chart->get_ChartData()->get_Series()->idx_get(1);

// 現在更新系列資料
fact->GetCell(defaultWorksheetIndex, 0, 2, System::ObjectExt::Box<System::String>(u"New_Series2"));
// 修改系列名稱
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));


// 現在，新增一個系列
chart->get_ChartData()->get_Series()->Add(fact->GetCell(defaultWorksheetIndex, 0, 3, System::ObjectExt::Box<System::String>(u"Series 3")), chart->get_Type());

// 取得第三個圖表系列
series = chart->get_ChartData()->get_Series()->idx_get(2);

// 現在填入系列資料
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);

// 儲存包含圖表的簡報
pres->Save(u"AsposeChartModified_out.pptx", Aspose::Slides::Export::SaveFormat::Pptx);
```

## **設定圖表的資料範圍**

1. 開啟包含圖表的 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/class/aspose.slides.presentation) 實例。  
2. 依索引取得投影片的參考。  
3. 遍歷所有圖形以找出目標圖表。  
4. 取得圖表資料並設定範圍。  
5. 將修改後的簡報儲存為 PPTX 檔案。  

以下 C++ 程式碼示範如何為圖表設定資料範圍：

```cpp
// 文件目錄的路徑。
String dataDir = GetDataPath();

// 實例化代表 PPTX 檔案的 Presentation 類別
auto presentation = System::MakeObject<Presentation>(dataDir + u"ExistingChart.pptx");

// 取得第一張投影片並取得預設資料的圖表
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);
```

## **在圖表中使用預設標記**
在圖表中使用預設標記時，每個圖表系列會自動取得不同的預設標記圖示。

以下 C++ 程式碼示範如何自動為圖表系列設定標記：

```cpp
// 文件目錄的路徑。
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());

// 取得第二個圖表系列
auto series2 = chart->get_ChartData()->get_Series()->idx_get(1);

// 填充系列資料
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);
```

## **常見問題**

**Aspose.Slides 支援哪些圖表類型？**

Aspose.Slides 支援包括長條圖、折線圖、圓形圖、區域圖、散佈圖、直方圖、雷達圖等多種圖表類型。此彈性讓您可依資料視覺化需求選擇最適合的圖表類型。

**如何將新圖表加入投影片？**

首先建立 [Presentation](https://reference.aspose.com/slides/zh-hant/cpp/aspose.slides/presentation/) 類別的實例，依索引取得目標投影片，然後呼叫加入圖表的方法，並指定圖表類型與初始資料。此程序會將圖表直接嵌入簡報中。

**如何更新圖表中顯示的資料？**

您可以透過存取圖表的資料工作簿（[IChartDataWorkbook](https://reference.aspose.com/slides/zh-hant/cpp/aspose.slides.charts/ichartdataworkbook/)），清除任何預設的系列與類別，然後加入自訂資料，以程式方式刷新圖表顯示最新資料。

**是否可以自訂圖表的外觀？**

可以，Aspose.Slides 提供豐富的自訂選項，您能修改顏色、字型、標籤、圖例以及其他格式元素，以符合特定設計需求。