ملاحظات

استخدام الملاحظات

تمت إضافة خاصية ShowLabelAsDataCallout إلى فئة DataLabelFormat وواجهة IDataLabelFormat، والتي تحدد ما إذا كان سيتم عرض تسمية بيانات الرسم البياني المحدد كملاحظة بيانات أو كتسمية بيانات. في المثال المقدم أدناه، قمنا بتعيين الملاحظات.

For complete examples and data files, please go to https://github.com/aspose-slides/Aspose.Slides-for-C

	// The path to the documents directory.
	const String outPath = u"../out/DisplayChartLabels_out.pptx";

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

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

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

	chart->get_ChartData()->get_Series()->idx_get(0)->get_Labels()->get_DefaultDataLabelFormat()->set_ShowValue ( true);
	chart->get_ChartData()->get_Series()->idx_get(0)->get_Labels()->get_DefaultDataLabelFormat()->set_ShowLabelAsDataCallout( true);
	chart->get_ChartData()->get_Series()->idx_get(0)->get_Labels()->idx_get(2)->get_DataLabelFormat()->set_ShowLabelAsDataCallout ( false);

	// Write the presentation file to disk
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);

تعيين ملاحظة لرسم بياني دائري

تقدم Aspose.Slides لـ C++ دعمًا لتعيين شكل ملاحظة تسمية بيانات السلسلة لرسم بياني دائري. تم تقديم مثال عينة أدناه.

For complete examples and data files, please go to https://github.com/aspose-slides/Aspose.Slides-for-C

	// The path to the documents directory.
	const String outPath = u"../out/AddDoughnutCallout_out.pptx";

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

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

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

	int seriesIndex = 0;

	// Setting the index of chart data sheet
	int defaultWorksheetIndex = 0;

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


	// Delete default generated series and categories
	chart->get_ChartData()->get_Series()->Clear();
	chart->get_ChartData()->get_Categories()->Clear();
	chart->set_HasLegend(false);
	////////////

	while (seriesIndex < 15)
	{

		SharedPtr<IChartSeries> series = chart->get_ChartData()->get_Series()->Add(fact->GetCell(0, 0, seriesIndex + 1, ObjectExt::Box<System::String>(u"SERIES" + seriesIndex)), chart->get_Type());
		
		series->set_Explosion(0);
		series->get_ParentSeriesGroup()->set_DoughnutHoleSize (20);
		series->get_ParentSeriesGroup()->set_FirstSliceAngle ( 351);
		seriesIndex++;
	}
	int categoryIndex = 0;
	while (categoryIndex < 15)
	{
		chart->get_ChartData()->get_Categories()->Add(fact->GetCell(0, categoryIndex + 1, 0, ObjectExt::Box<System::String>(u"CATEGORY" + categoryIndex)));
		int i = 0;
		while (i < chart->get_ChartData()->get_Series()->get_Count())
		{
			SharedPtr<IChartSeries> iCS = chart->get_ChartData()->get_Series()->idx_get(i);
			SharedPtr<IChartDataPoint> dataPoint = iCS->get_DataPoints()->AddDataPointForDoughnutSeries(fact->GetCell(0, categoryIndex + 1, i + 1, ObjectExt::Box<double>(1)));
			dataPoint->get_Format()->get_Fill()->set_FillType (FillType::Solid);
			dataPoint->get_Format()->get_Line()->get_FillFormat()->set_FillType(FillType::Solid);
			dataPoint->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_White());
			dataPoint->get_Format()->get_Line()->set_Width( 1);
			dataPoint->get_Format()->get_Line()->set_Style (LineStyle::Single);
			dataPoint->get_Format()->get_Line()->set_DashStyle(LineDashStyle::Solid);
			if (i == chart->get_ChartData()->get_Series()->get_Count() - 1)
			{
				SharedPtr<IDataLabel> lbl = dataPoint->get_Label();
				lbl->get_TextFormat()->get_TextBlockFormat()->set_AutofitType (TextAutofitType::Shape);
				lbl->get_DataLabelFormat()->get_TextFormat()->get_PortionFormat()->set_FontBold (NullableBool::True);
				lbl->get_DataLabelFormat()->get_TextFormat()->get_PortionFormat()->set_LatinFont(MakeObject<FontData>(u"DINPro-Bold"));

				lbl->get_DataLabelFormat()->get_TextFormat()->get_PortionFormat()->set_FontHeight ( 12);
				lbl->get_DataLabelFormat()->get_TextFormat()->get_PortionFormat()->get_FillFormat()->set_FillType (FillType::Solid);
				lbl->get_DataLabelFormat()->get_TextFormat()->get_PortionFormat()->get_FillFormat()->get_SolidFillColor()->set_Color (System::Drawing::Color::get_LightGray());
				lbl->get_DataLabelFormat()->get_Format()->get_Line()->get_FillFormat()->get_SolidFillColor()->set_Color(System::Drawing::Color::get_White());
				lbl->get_DataLabelFormat()->set_ShowValue ( false);
				lbl->get_DataLabelFormat()->set_ShowCategoryName ( true);
				lbl->get_DataLabelFormat()->set_ShowSeriesName(false);
				//lbl.DataLabelFormat.ShowLabelAsDataCallout = true;
				lbl->get_DataLabelFormat()->set_ShowLeaderLines (true);
				lbl->get_DataLabelFormat()->set_ShowLabelAsDataCallout ( false);
				chart->ValidateChartLayout();
				lbl->set_X((float)lbl->get_X() + (float)0.5);
				lbl->set_Y((float)lbl->get_Y() + (float)0.5);
			}
			i++;
		}
		categoryIndex++;
	}

	// Write the presentation file to disk
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);