Bild als Hintergrund festlegen Füllen Sie das Diagramm aus
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Aspose.Cells ermöglicht es Ihnen, einen Verlauf, eine Textur, ein Muster oder ein Bild als Fülleffekte für verschiedene Objekte festzulegen, z. B. den Plotbereich, den Diagrammbereich oder das Legendenfeld eines Diagramms. Dieses Dokument zeigt, wie Sie dem Hintergrund eines Diagramms ein Bild hinzufügen.
Um dies zu erreichen, bietet Aspose.Cells dieChart.PlotArea.Area.FillFormat.ImageData Eigentum. Das folgende Codebeispiel veranschaulicht die Verwendung vonChart.PlotArea.Area.FillFormat.ImageData -Eigenschaft, um ein Bild als Hintergrund für das Diagramm festzulegen.
C# Code, um ein Bild als Hintergrund für das Diagramm festzulegen
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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"); |