Lider Çizgilerle Pasta Grafiği Oluşturma

Lider Çizgili Pasta Grafiği Oluşturma

Lider çizgili bir pasta grafiğini oluşturmak için Aspose.Cells for Java API’sını kullanımını göstermek için öncelikle yeni bir Workbook oluşturacağız ve seriler veri kaynağı olarak hizmet edecek bazı veriler gireceğiz. Veriler yerindeyken, farklı bir görünüm elde etmek için çeşitli yönleri ayarlayarak grafiğin istenen görünümünü elde etmek için türde Pie bir koleksiyona Chart ekleyeceğiz.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(CreatePieChartWithLeaderLines.class);
// Create an instance of Workbook in XLSX format
Workbook workbook = new Workbook(FileFormatType.XLSX);
// Access the first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);
// Add two columns of data
worksheet.getCells().get("A1").putValue("Retail");
worksheet.getCells().get("A2").putValue("Services");
worksheet.getCells().get("A3").putValue("Info & Communication");
worksheet.getCells().get("A4").putValue("Transport Equip");
worksheet.getCells().get("A5").putValue("Construction");
worksheet.getCells().get("A6").putValue("Other Products");
worksheet.getCells().get("A7").putValue("Wholesale");
worksheet.getCells().get("A8").putValue("Land Transport");
worksheet.getCells().get("A9").putValue("Air Transport");
worksheet.getCells().get("A10").putValue("Electric Appliances");
worksheet.getCells().get("A11").putValue("Securities");
worksheet.getCells().get("A12").putValue("Textiles & Apparel");
worksheet.getCells().get("A13").putValue("Machinery");
worksheet.getCells().get("A14").putValue("Metal Products");
worksheet.getCells().get("A15").putValue("Cash");
worksheet.getCells().get("A16").putValue("Banks");
worksheet.getCells().get("B1").putValue(10.4);
worksheet.getCells().get("B2").putValue(5.2);
worksheet.getCells().get("B3").putValue(6.4);
worksheet.getCells().get("B4").putValue(10.4);
worksheet.getCells().get("B5").putValue(7.9);
worksheet.getCells().get("B6").putValue(4.1);
worksheet.getCells().get("B7").putValue(3.5);
worksheet.getCells().get("B8").putValue(5.7);
worksheet.getCells().get("B9").putValue(3);
worksheet.getCells().get("B10").putValue(14.7);
worksheet.getCells().get("B11").putValue(3.6);
worksheet.getCells().get("B12").putValue(2.8);
worksheet.getCells().get("B13").putValue(7.8);
worksheet.getCells().get("B14").putValue(2.4);
worksheet.getCells().get("B15").putValue(1.8);
worksheet.getCells().get("B16").putValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.getCharts().add(ChartType.PIE, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.getCharts().get(id);
// Set series data range
chart.getNSeries().add("B1:B16", true);
// Set category data range
chart.getNSeries().setCategoryData("A1:A16");
// Turn off legend
chart.setShowLegend(false);
// Access data labels
DataLabels dataLabels = chart.getNSeries().get(0).getDataLabels();
// Turn on category names
dataLabels.setShowCategoryName(true);
// Turn on percentage format
dataLabels.setShowPercentage(true);
// Set position
dataLabels.setPosition(LabelPositionType.OUTSIDE_END);
// Set separator
dataLabels.setSeparator(DataLablesSeparatorType.COMMA);
//Turn on leader lines
chart.getNSeries().get(0).setHasLeaderLines(true);
//Calculate chart
chart.calculate();
//You need to move DataLabels a little leftward or rightward depending on their position
//to show leader lines
int DELTA = 100;
for (int i = 0; i < chart.getNSeries().get(0).getPoints().getCount(); i++)
{
int X = chart.getNSeries().get(0).getPoints().get(i).getDataLabels().getX();
//If it is greater than 2000, then move the X position a little right
//otherwise move the X position a little left
if (X > 2000)
chart.getNSeries().get(0).getPoints().get(i).getDataLabels().setX(X + DELTA);
else
chart.getNSeries().get(0).getPoints().get(i).getDataLabels().setX(X - DELTA);
}
//In order to save the chart image, create an instance of ImageOrPrintOptions
ImageOrPrintOptions anOption = new ImageOrPrintOptions();
//Set image format
anOption.setImageFormat(ImageFormat.getPng());
//Set resolution
anOption.setHorizontalResolution(200);
anOption.setVerticalResolution(200);
//Render chart to image
chart.toImage(dataDir + "output.png", anOption);
//Save the workbook to see chart inside the Excel
workbook.save(dataDir + "output.xlsx");

Sonuçta Oluşan Pasta Grafiği

todo:image_alt_text

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