Anpassade segment- eller sektorfärger i cirkeldiagram
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Den här artikeln förklarar hur du lägger till anpassade färger till cirkeldiagramsegment/sektorer. Som standard använder cirkeldiagram standardmallen Microsoft Excel. Om du vill använda andra färger, definiera om färgerna i diagrammet.
Så här ställer du in en anpassad färg för ett cirkeldiagrams enskilda segment eller sektorer:
- Få tillgång tillSerier föremålChartPoint.
- Tilldela den färg du väljer med hjälp avChartPoint.Area.ForegroundColorfast egendom.
Den här artikeln förklarar också hur du:
- Ett diagrams kategoridata.
- En diagramtitel kopplad till en cell.
- Teckensnittsinställningarna för diagramtiteln.
- Legendens position.
ChartPoint.Area.ForegroundColor är inte specifikt för cirkeldiagram men det kan användas för alla typer av diagram.
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// 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 a workbook object from the template file | |
Workbook workbook = new Workbook(); | |
// Access the first worksheet. | |
Worksheet worksheet = workbook.Worksheets[0]; | |
// Put the sample values used in a pie chart | |
worksheet.Cells["C3"].PutValue("India"); | |
worksheet.Cells["C4"].PutValue("China"); | |
worksheet.Cells["C5"].PutValue("United States"); | |
worksheet.Cells["C6"].PutValue("Russia"); | |
worksheet.Cells["C7"].PutValue("United Kingdom"); | |
worksheet.Cells["C8"].PutValue("Others"); | |
// Put the sample values used in a pie chart | |
worksheet.Cells["D2"].PutValue("% of world population"); | |
worksheet.Cells["D3"].PutValue(25); | |
worksheet.Cells["D4"].PutValue(30); | |
worksheet.Cells["D5"].PutValue(10); | |
worksheet.Cells["D6"].PutValue(13); | |
worksheet.Cells["D7"].PutValue(9); | |
worksheet.Cells["D8"].PutValue(13); | |
// Create a pie chart with desired length and width | |
int pieIdx = worksheet.Charts.Add(ChartType.Pie, 1, 6, 15, 14); | |
// Access the pie chart | |
Chart pie = worksheet.Charts[pieIdx]; | |
// Set the pie chart series | |
pie.NSeries.Add("D3:D8", true); | |
// Set the category data | |
pie.NSeries.CategoryData = "=Sheet1!$C$3:$C$8"; | |
// Set the chart title that is linked to cell D2 | |
pie.Title.LinkedSource = "D2"; | |
// Set the legend position at the bottom. | |
pie.Legend.Position = LegendPositionType.Bottom; | |
// Set the chart title's font name and color | |
pie.Title.Font.Name = "Calibri"; | |
pie.Title.Font.Size = 18; | |
// Access the chart series | |
Series srs = pie.NSeries[0]; | |
// Color the indvidual points with custom colors | |
srs.Points[0].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 246, 22, 219); | |
srs.Points[1].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 51, 34, 84); | |
srs.Points[2].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 46, 74, 44); | |
srs.Points[3].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 19, 99, 44); | |
srs.Points[4].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 208, 223, 7); | |
srs.Points[5].Area.ForegroundColor = System.Drawing.Color.FromArgb(0, 222, 69, 8); | |
// Autofit all columns | |
worksheet.AutoFitColumns(); | |
dataDir = dataDir+ "output.out.xlsx"; | |
// Save the workbook | |
workbook.Save(dataDir, SaveFormat.Xlsx); |