Read Barcodes in a Specific Order

When an image has several barcodes users might want to read them in a particular order. This article shows how to do so using Aspose.BarCode for Java.

The code examples given below demonstrate how to read barcodes in a specific order.

public class FoundBarCodes {
	String CodeText;
	BarCodeRegionParameters BarCodeRegion;

	public FoundBarCodes(String cText, BarCodeRegionParameters barCodeRegionParameters) {
		this.CodeText = cText;
		this.BarCodeRegion = barCodeRegionParameters;
	}

	public String getCodeText() {
		return CodeText;
	}

	public com.aspose.barcode.barcoderecognition.BarCodeRegionParameters getRegion() {
		return BarCodeRegion;
	}
}

String dataDir = Utils.getDataDir(ReadAndSortBarcodesInSpecificOrder.class) + "TechnicalArticles/";
String path = dataDir + "barcode.png";
List<FoundBarCodes> found = new ArrayList<FoundBarCodes>();

BarCodeReader reader = new BarCodeReader(path, DecodeType.CODE_128);
		
for (BarCodeResult result : reader.readBarCodes())
{
	found.add(new FoundBarCodes(result.getCodeText(), result.getRegion()));
}
		
Comparator<FoundBarCodes> foundComparator = new Comparator<FoundBarCodes>() {
	@Override
	public int compare(FoundBarCodes e1, FoundBarCodes e2) {
		return e1.getCodeText().compareTo(e2.getCodeText());
	}
};

found.sort(foundComparator);

int i = 1;
for (FoundBarCodes barcode : found) {
	Point[] point = barcode.BarCodeRegion.getPoints();
	System.out.println("Codetext ( " + i + " ): " + barcode.CodeText);
	System.out.println("Top left coordinates: X = " + point[0].getX() + ", Y = " + point[0].getY());
	System.out.println("Bottom left coordinates: X = " + point[1].getX() + ", Y = " + point[1].getY());
	System.out.println("Bottom right coordinates: X = " + point[2].getX() + ", Y = " + point[2].getY());
	System.out.println("Top right coordinates: X = " + point[3].getX() + ", Y = " + point[3].getY());
	System.out.println();
	i++;
}