إنشاء رسم بياني دائري مع خطوط الريادة

لتوضيح استخدام واجهة Aspose.Cells for .NET لإنشاء رسم بياني دائري مع خطوط الريادة، سنقوم أولاً بإنشاء Workbook جديدة وإدخال بعض البيانات التي ستعمل كمصدر بيانات السلسلة. بمجرد اكتمال البيانات، سنضيف Chart من نوع ChartType.Pie إلى مجموعة الرسوم البيانية ونضبط جوانبه المختلفة للحصول على عرض الرسم البياني المرغوب فيه.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create an instance of Workbook in XLSX format
Workbook workbook = new Workbook(FileFormatType.Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.Worksheets[0];
// Add two columns of data
worksheet.Cells["A1"].PutValue("Retail");
worksheet.Cells["A2"].PutValue("Services");
worksheet.Cells["A3"].PutValue("Info & Communication");
worksheet.Cells["A4"].PutValue("Transport Equip");
worksheet.Cells["A5"].PutValue("Construction");
worksheet.Cells["A6"].PutValue("Other Products");
worksheet.Cells["A7"].PutValue("Wholesale");
worksheet.Cells["A8"].PutValue("Land Transport");
worksheet.Cells["A9"].PutValue("Air Transport");
worksheet.Cells["A10"].PutValue("Electric Appliances");
worksheet.Cells["A11"].PutValue("Securities");
worksheet.Cells["A12"].PutValue("Textiles & Apparel");
worksheet.Cells["A13"].PutValue("Machinery");
worksheet.Cells["A14"].PutValue("Metal Products");
worksheet.Cells["A15"].PutValue("Cash");
worksheet.Cells["A16"].PutValue("Banks");
worksheet.Cells["B1"].PutValue(10.4);
worksheet.Cells["B2"].PutValue(5.2);
worksheet.Cells["B3"].PutValue(6.4);
worksheet.Cells["B4"].PutValue(10.4);
worksheet.Cells["B5"].PutValue(7.9);
worksheet.Cells["B6"].PutValue(4.1);
worksheet.Cells["B7"].PutValue(3.5);
worksheet.Cells["B8"].PutValue(5.7);
worksheet.Cells["B9"].PutValue(3);
worksheet.Cells["B10"].PutValue(14.7);
worksheet.Cells["B11"].PutValue(3.6);
worksheet.Cells["B12"].PutValue(2.8);
worksheet.Cells["B13"].PutValue(7.8);
worksheet.Cells["B14"].PutValue(2.4);
worksheet.Cells["B15"].PutValue(1.8);
worksheet.Cells["B16"].PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.Charts.Add(ChartType.Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.Charts[id];
// Set series data range
chart.NSeries.Add("B1:B16", true);
// Set category data range
chart.NSeries.CategoryData = "A1:A16";
// Turn off legend
chart.ShowLegend = false;
// Access data labels
DataLabels dataLabels = chart.NSeries[0].DataLabels;
// Turn on category names
dataLabels.ShowCategoryName = true;
// Turn on percentage format
dataLabels.ShowPercentage = true;
// Set position
dataLabels.Position = LabelPositionType.OutsideEnd;
// Set separator
dataLabels.SeparatorType = DataLabelsSeparatorType.Comma;

حتى الآن قمنا بإنشاء رسم بياني دائري وضبط جوانبه المختلفة. الآن سنقوم بتشغيل خطوط الريادة للرسم البياني. يرجى ملاحظة أنه لعرض خطوط الريادة، علينا نقل تسميات البيانات قليلاً.

يقوم الكود التالي بتشغيل خطوط الريادة، يحدث الرسم البياني، ومن ثم يحسب مواقع تسميات البيانات لنقلها وفقًا لذلك.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// Create an instance of Workbook in XLSX format
Workbook workbook = new Workbook(FileFormatType.Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.Worksheets[0];
// Add two columns of data
worksheet.Cells["A1"].PutValue("Retail");
worksheet.Cells["A2"].PutValue("Services");
worksheet.Cells["A3"].PutValue("Info & Communication");
worksheet.Cells["A4"].PutValue("Transport Equip");
worksheet.Cells["A5"].PutValue("Construction");
worksheet.Cells["A6"].PutValue("Other Products");
worksheet.Cells["A7"].PutValue("Wholesale");
worksheet.Cells["A8"].PutValue("Land Transport");
worksheet.Cells["A9"].PutValue("Air Transport");
worksheet.Cells["A10"].PutValue("Electric Appliances");
worksheet.Cells["A11"].PutValue("Securities");
worksheet.Cells["A12"].PutValue("Textiles & Apparel");
worksheet.Cells["A13"].PutValue("Machinery");
worksheet.Cells["A14"].PutValue("Metal Products");
worksheet.Cells["A15"].PutValue("Cash");
worksheet.Cells["A16"].PutValue("Banks");
worksheet.Cells["B1"].PutValue(10.4);
worksheet.Cells["B2"].PutValue(5.2);
worksheet.Cells["B3"].PutValue(6.4);
worksheet.Cells["B4"].PutValue(10.4);
worksheet.Cells["B5"].PutValue(7.9);
worksheet.Cells["B6"].PutValue(4.1);
worksheet.Cells["B7"].PutValue(3.5);
worksheet.Cells["B8"].PutValue(5.7);
worksheet.Cells["B9"].PutValue(3);
worksheet.Cells["B10"].PutValue(14.7);
worksheet.Cells["B11"].PutValue(3.6);
worksheet.Cells["B12"].PutValue(2.8);
worksheet.Cells["B13"].PutValue(7.8);
worksheet.Cells["B14"].PutValue(2.4);
worksheet.Cells["B15"].PutValue(1.8);
worksheet.Cells["B16"].PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.Charts.Add(ChartType.Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.Charts[id];
// Set series data range
chart.NSeries.Add("B1:B16", true);
// Set category data range
chart.NSeries.CategoryData = "A1:A16";
// Turn off legend
chart.ShowLegend = false;
// Access data labels
DataLabels dataLabels = chart.NSeries[0].DataLabels;
// Turn on category names
dataLabels.ShowCategoryName = true;
// Turn on percentage format
dataLabels.ShowPercentage = true;
// Set position
dataLabels.Position = LabelPositionType.OutsideEnd;
// Set separator
dataLabels.SeparatorType = DataLabelsSeparatorType.Comma;
// Turn on leader lines
chart.NSeries[0].HasLeaderLines = true;
// Calculete chart
chart.Calculate();
// You need to move DataLabels a little leftward or rightward depending on their position to show leader lines
int DELTA = 100;
for (int i = 0; i < chart.NSeries[0].Points.Count; i++)
{
int X = chart.NSeries[0].Points[i].DataLabels.X;
// If it is greater than 2000, then move the X position a little right otherwise move the X position a little left
if (X > 2000)
chart.NSeries[0].Points[i].DataLabels.X = X + DELTA;
else
chart.NSeries[0].Points[i].DataLabels.X = X - DELTA;
}

أخيرًا، يقوم الكود التالي بحفظ الرسم البياني بتنسيق الصورة ودفتر العمل بتنسيق XLSX.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// Create an instance of Workbook in XLSX format
Workbook workbook = new Workbook(FileFormatType.Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.Worksheets[0];
// Add two columns of data
worksheet.Cells["A1"].PutValue("Retail");
worksheet.Cells["A2"].PutValue("Services");
worksheet.Cells["A3"].PutValue("Info & Communication");
worksheet.Cells["A4"].PutValue("Transport Equip");
worksheet.Cells["A5"].PutValue("Construction");
worksheet.Cells["A6"].PutValue("Other Products");
worksheet.Cells["A7"].PutValue("Wholesale");
worksheet.Cells["A8"].PutValue("Land Transport");
worksheet.Cells["A9"].PutValue("Air Transport");
worksheet.Cells["A10"].PutValue("Electric Appliances");
worksheet.Cells["A11"].PutValue("Securities");
worksheet.Cells["A12"].PutValue("Textiles & Apparel");
worksheet.Cells["A13"].PutValue("Machinery");
worksheet.Cells["A14"].PutValue("Metal Products");
worksheet.Cells["A15"].PutValue("Cash");
worksheet.Cells["A16"].PutValue("Banks");
worksheet.Cells["B1"].PutValue(10.4);
worksheet.Cells["B2"].PutValue(5.2);
worksheet.Cells["B3"].PutValue(6.4);
worksheet.Cells["B4"].PutValue(10.4);
worksheet.Cells["B5"].PutValue(7.9);
worksheet.Cells["B6"].PutValue(4.1);
worksheet.Cells["B7"].PutValue(3.5);
worksheet.Cells["B8"].PutValue(5.7);
worksheet.Cells["B9"].PutValue(3);
worksheet.Cells["B10"].PutValue(14.7);
worksheet.Cells["B11"].PutValue(3.6);
worksheet.Cells["B12"].PutValue(2.8);
worksheet.Cells["B13"].PutValue(7.8);
worksheet.Cells["B14"].PutValue(2.4);
worksheet.Cells["B15"].PutValue(1.8);
worksheet.Cells["B16"].PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.Charts.Add(ChartType.Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.Charts[id];
// Set series data range
chart.NSeries.Add("B1:B16", true);
// Set category data range
chart.NSeries.CategoryData = "A1:A16";
// Turn off legend
chart.ShowLegend = false;
// Access data labels
DataLabels dataLabels = chart.NSeries[0].DataLabels;
// Turn on category names
dataLabels.ShowCategoryName = true;
// Turn on percentage format
dataLabels.ShowPercentage = true;
// Set position
dataLabels.Position = LabelPositionType.OutsideEnd;
// Set separator
dataLabels.SeparatorType = DataLabelsSeparatorType.Comma;
// In order to save the chart image, create an instance of ImageOrPrintOptions
ImageOrPrintOptions anOption = new ImageOrPrintOptions();
// Set image format
anOption.ImageType = Drawing.ImageType.Png;
// Set resolution
anOption.HorizontalResolution = 200;
anOption.VerticalResolution = 200;
// Render chart to image
chart.ToImage(dataDir + "output_out.png", anOption);
// Save the workbook to see chart inside the Excel
workbook.Save(dataDir + "output_out.xlsx");
الرسم البياني الناتج
todo:image_alt_text

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