Skapa cirkeldiagram med ledarlinjer
För att demonstrera användningen av Aspose.Cells for .NET API för att skapa ett cirkeldiagram med ledarlänkar kommer vi först att skapa en ny Workbook och mata in viss data som kommer att fungera som datakälla för serier. När data är på plats kommer vi att lägga till en Chart av typ ChartType.Pie till samlingen av diagram och ställa in dess olika aspekter för att få önskad diagramvy.
// 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; |
Hittills har vi skapat ett cirkeldiagram och ställt in dess olika aspekter. Nu kommer vi att slå på ledarlänkarna för diagrammet. Observera, för att visa ledarlänkar måste vi flytta dataetiketterna lite.
Följande kodsnutt slår på ledarlänkarna, uppdaterar diagrammet och beräknar sedan dataetiketternas positioner för att flytta dem på lämpligt sätt.
// 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; | |
} |
Slutligen sparar följande kod diagrammet i bildformat och arbetsboken i 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"); |
Resulterande Cirkeldiagram |
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Fortsatta ämnen
- Anpassade färgval för skiv- eller sektorfärger i cirkeldiagram
- Ta reda på om datapunkterna finns i den andra pajen eller stapeln på ett paj- eller stapeldiagram