生成条件格式数据条形图像

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示例

下面的示例代码生成了单元格C1的DataBar图像。首先,访问单元格的格式条件对象,然后从该对象访问DataBar对象,并使用其 DataBar.toImage() 方法生成单元格的图像。最后,将图像保存在磁盘上。

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
String sourceDir = Utils.Get_SourceDirectory();
String outputDir = Utils.Get_OutputDirectory();
Workbook workbook = new Workbook(sourceDir + "sampleGenerateDatabarImage.xlsx");
// Access first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);
// Access the cell which contains conditional formatting databar
Cell cell = worksheet.getCells().get("C1");
// Create and get the conditional formatting of the worksheet
int idx = worksheet.getConditionalFormattings().add();
FormatConditionCollection fcc = worksheet.getConditionalFormattings().get(idx);
fcc.addCondition(FormatConditionType.DATA_BAR);
fcc.addArea(CellArea.createCellArea("C1", "C4"));
// Access the conditional formatting databar
DataBar dbar = fcc.get(0).getDataBar();
// Create image or print options
ImageOrPrintOptions opts = new ImageOrPrintOptions();
opts.setImageType(ImageType.PNG);
// Get the image bytes of the databar
byte[] imgBytes = dbar.toImage(cell, opts);
// Write image bytes on the disk
FileOutputStream out = new FileOutputStream(outputDir + "databar.png");
out.write(imgBytes);
out.close();
// save workbook with databars
workbook.save(outputDir + "databar.xlsx");