在Aspose.Cells中为图表添加WordArt水印
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您可以使用WordArt在电子表格中添加特殊文本效果。例如，拉伸标题、装饰文本、使文本适合预设形状，或将受影响的文本应用于图表的绘图区作为水印。WordArt成为您可以在电子表格中移动或定位的对象，以添加装饰。
以下示例显示如何向现有图表的绘图区添加WordArt形状作为水印。该示例使用一个已包含图表的模板Excel文件。
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输出文件
C#
string FilePath = @"..\..\..\Sample Files\";
string FileName = FilePath + "Add WordArt Watermark to Chart.xlsx";
//Open the existing excel file.
Workbook workbook = new Workbook(FileName);
//Get the chart in the first worksheet.
Aspose.Cells.Charts.Chart chart = workbook.Worksheets[0].Charts[0];
//Add a WordArt watermark (shape) to the chart's plot area.
Aspose.Cells.Drawing.Shape wordart = chart.Shapes.AddTextEffectInChart(MsoPresetTextEffect.TextEffect2,
"CONFIDENTIAL", "Arial Black", 66, false, false, 1200, 500, 2000, 3000);
//Get the shape's fill format.
Aspose.Cells.Drawing.MsoFillFormat wordArtFormat = wordart.FillFormat;
//Set the transparency.
wordArtFormat.Transparency = 0.9;
//Get the line format and make it invisible.
Aspose.Cells.Drawing.MsoLineFormat lineFormat = wordart.LineFormat;
lineFormat.IsVisible = false;
//Save the excel file.
workbook.Save(FileName);