Ange bild som bakgrundsfyllning i diagrammet
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Aspose.Cells tillåter dig att ställa in en gradient, textur, mönster eller bild som fyllningseffekter för olika objekt, som plot area, diagram area, eller legendruta i ett diagram. Detta dokument visar hur man lägger till en bild som bakgrund till ett diagram.
För att uppnå detta tillhandahåller Aspose.Cells egenskapen Chart.PlotArea.Area.FillFormat.ImageData. Följande kodexempel demonstrerar användningen av egenskapen Chart.PlotArea.Area.FillFormat.ImageData för att ställa in en bild som bakgrundsfyllning i diagrammet.
C#-kod för att ställa in bild som bakgrundsfyllning i diagrammet
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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 new Workbook. | |
Workbook workbook = new Workbook(); | |
// Get the first worksheet. | |
Worksheet sheet = workbook.Worksheets[0]; | |
// Set the name of worksheet | |
sheet.Name = "Data"; | |
// Get the cells collection in the sheet. | |
Cells cells = workbook.Worksheets[0].Cells; | |
// Put some values into a cells of the Data sheet. | |
cells["A1"].PutValue("Region"); | |
cells["A2"].PutValue("France"); | |
cells["A3"].PutValue("Germany"); | |
cells["A4"].PutValue("England"); | |
cells["A5"].PutValue("Sweden"); | |
cells["A6"].PutValue("Italy"); | |
cells["A7"].PutValue("Spain"); | |
cells["A8"].PutValue("Portugal"); | |
cells["B1"].PutValue("Sale"); | |
cells["B2"].PutValue(70000); | |
cells["B3"].PutValue(55000); | |
cells["B4"].PutValue(30000); | |
cells["B5"].PutValue(40000); | |
cells["B6"].PutValue(35000); | |
cells["B7"].PutValue(32000); | |
cells["B8"].PutValue(10000); | |
// Add a chart sheet. | |
int sheetIndex = workbook.Worksheets.Add(SheetType.Chart); | |
sheet = workbook.Worksheets[sheetIndex]; | |
// Set the name of worksheet | |
sheet.Name = "Chart"; | |
// Create chart | |
int chartIndex = 0; | |
chartIndex = sheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 1, 1, 25, 10); | |
Aspose.Cells.Charts.Chart chart = sheet.Charts[chartIndex]; | |
// Set some properties of chart plot area. | |
// To set a picture as fill format and make the border invisible. | |
FileStream fs = File.OpenRead(dataDir+ "aspose.png"); | |
byte[] data = new byte[fs.Length]; | |
fs.Read(data, 0, data.Length); | |
chart.PlotArea.Area.FillFormat.ImageData = data; | |
chart.PlotArea.Border.IsVisible = false; | |
// Set properties of chart title | |
chart.Title.Text = "Sales By Region"; | |
chart.Title.Font.Color = Color.Blue; | |
chart.Title.Font.IsBold = true; | |
chart.Title.Font.Size = 12; | |
// Set properties of nseries | |
chart.NSeries.Add("Data!B2:B8", true); | |
chart.NSeries.CategoryData = "Data!A2:A8"; | |
chart.NSeries.IsColorVaried = true; | |
// Set the Legend. | |
Aspose.Cells.Charts.Legend legend = chart.Legend; | |
legend.Position = Aspose.Cells.Charts.LegendPositionType.Top; | |
// Save the excel file | |
workbook.Save(dataDir + "column_chart_out.xls"); |