Erstellung eines Tortendiagramms mit Führungslinien
Um die Verwendung der Aspose.Cells for .NET-API zum Erstellen eines Tortendiagramms mit Führungslinien zu demonstrieren, werden wir zuerst ein neues Workbook erstellen und einige Daten eingeben, die als Datenquelle für die Serie dienen. Sobald die Daten bereit sind, fügen wir ein Chart vom Typ ChartType.Pie zur Sammlung von Diagrammen hinzu und setzen dessen verschiedene Aspekte, um die gewünschte Diagrammansicht zu erhalten.
// 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; |
Bisher haben wir ein Tortendiagramm erstellt und seine verschiedenen Aspekte festgelegt. Jetzt werden wir die Führungslinien für das Diagramm einschalten. Bitte beachten Sie, dass wir die Datenbeschriftungen ein wenig verschieben müssen, um die Führungslinien anzuzeigen.
Der folgende Code aktiviert die Führungslinien, aktualisiert das Diagramm und berechnet dann die Positionen der Datenbeschriftungen, um sie entsprechend zu verschieben.
// 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; | |
} |
Abschließend speichert der folgende Code das Diagramm im Bildformat und die Arbeitsmappe im XLSX-Format.
// 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"); |
Ergebnis Tortendiagramm |
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Erweiterte Themen
- Benutzerdefinierte Farben für Tortenstücke oder Sektoren in einem Tortendiagramm
- Herausfinden, ob Datenpunkte in der zweiten Torte oder Balken in einem Tortendiagramm der Torten oder Balken sind