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PDF417BarcodeECCLevel Enumeration

Summary
Specifies the PDF417 symbol ECC level.
Syntax
C#
Objective-C
C++/CLI
Java
Python
[SerializableAttribute()] 
public enum PDF417BarcodeECCLevel   
typedef NS_ENUM(NSInteger, LTPDF417BarcodeECCLevel) { 
 LTPDF417BarcodeECCLevelLevel0,  
 LTPDF417BarcodeECCLevelLevel1,  
 LTPDF417BarcodeECCLevelLevel2,  
 LTPDF417BarcodeECCLevelLevel3,  
 LTPDF417BarcodeECCLevelLevel4,  
 LTPDF417BarcodeECCLevelLevel5,  
 LTPDF417BarcodeECCLevelLevel6,  
 LTPDF417BarcodeECCLevelLevel7,  
 LTPDF417BarcodeECCLevelLevel8,  
 LTPDF417BarcodeECCLevelUsePercentage 
}; 
public enum PDF417BarcodeECCLevel 
[SerializableAttribute()] 
public enum class PDF417BarcodeECCLevel   
class PDF417BarcodeECCLevel(Enum): 
   Level0 = 0 
   Level1 = 1 
   Level2 = 2 
   Level3 = 3 
   Level4 = 4 
   Level5 = 5 
   Level6 = 6 
   Level7 = 7 
   Level8 = 8 
   UsePercentage = 9
Members
ValueMemberDescription
0Level0

Use 2 code words for error correction

1Level1

Use 4 code words for error correction

2Level2

Use 8 code words for error correction

3Level3

Use 16 code words for error correction

4Level4

Use 32 code words for error correction

5Level5

Use 54 code words for error correction

6Level6

Use 128 code words for error correction

7Level7

Use 256 code words for error correction

8Level8

Use 512 code words for error correction

9UsePercentage

Use the percentage value set in PDF417BarcodeWriteOptions.ECCPercentage

Remarks

Used as the type for the PDF417BarcodeWriteOptions.ECCLevel property to specify the PDF417 barcode ECC (Error Correction) level.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void PDF417Barcode_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyPDF417Barcodes.tif"); 
 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Create the image to write the barcodes to 
   int resolution = 300; 
   using (RasterImage image = RasterImage.Create((int)(8.5 * resolution), (int)(11.0 * resolution), 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))) 
   { 
      // Write two PDF417 barcodes 
      WriteBarcode(engine.Writer, image, "DATA1", 10, 10, true); 
      WriteBarcode(engine.Writer, image, "DATA2", 20, 20, false); 
 
      // Save the image 
      using (RasterCodecs codecs = new RasterCodecs()) 
      { 
         codecs.Save(image, imageFileName, RasterImageFormat.CcittGroup4, 1); 
      } 
   } 
 
   // Now read the barcodes again 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      using (RasterImage image = codecs.Load(imageFileName)) 
      { 
         ReadBarcodes(engine.Reader, image); 
      } 
   } 
} 
 
private void WriteBarcode(BarcodeWriter writer, RasterImage image, string value, int rows, int columns, bool topLeft) 
{ 
   // Create the barcode data 
   PDF417BarcodeData barcode = new PDF417BarcodeData(); 
   barcode.Value = value; 
   barcode.Group = 0; 
   barcode.Symbology = BarcodeSymbology.PDF417; 
 
   // We will use the alignment to position the barcodes, so use all of the image 
   barcode.Bounds = new LeadRect(0, 0, image.ImageWidth, image.ImageHeight); 
 
   // Set the write options 
   PDF417BarcodeWriteOptions options = new PDF417BarcodeWriteOptions(); 
 
   if (topLeft) 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Near; 
      options.VerticalAlignment = BarcodeAlignment.Near; 
   } 
   else 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Far; 
      options.VerticalAlignment = BarcodeAlignment.Far; 
   } 
 
   options.Truncated = false; 
   options.EnableGroupMode = false; 
   options.SymbolWidthAspectRatio = 2; 
   options.SymbolHeightAspectRatio = 1; 
   options.LimitByRowsAndColumns = true; 
   options.Rows = rows; 
   options.Columns = columns; 
   options.XModule = 30; 
   options.XModuleAspectRatio = 3; 
   options.ECCLevel = PDF417BarcodeECCLevel.Level0; 
   options.ECCPercentage = 0; 
 
   // Write it 
   Console.WriteLine("Writing barcode with symbol rows/columns: {0}/{1} and Data: {2}", rows, columns, value); 
   writer.WriteBarcode(image, barcode, options); 
} 
 
private void ReadBarcodes(BarcodeReader reader, RasterImage image) 
{ 
   // Setup read options 
   PDF417BarcodeReadOptions options = new PDF417BarcodeReadOptions(); 
   options.SearchDirection = BarcodeSearchDirection.Horizontal; 
   options.EnableDoublePass = false; 
   options.EnableFastMode = false; 
   options.ReadMode = PDF417BarcodeReadMode.Mode0; 
   options.ReturnCorruptedSymbolArea = false; 
   options.ReadOptionalMacroFileNameField = false; 
   options.ReadOptionalMacroSegmentCountField = false; 
   options.ReadOptionalMacroTimestampField = false; 
   options.ReadOptionalMacroSenderField = false; 
   options.ReadOptionalMacroAddresseeField = false; 
   options.ReadOptionalMacroFileSizeField = false; 
   options.ReadOptionalMacroChecksumField = false; 
   options.ReadOptionalMacro79AndAZField = false; 
   options.EnableDoublePassIfSuccess = true; 
   options.EnableNoIndicatorTrail = true; 
   options.EnablePreprocessing = true; 
 
   Console.WriteLine("Reading Barcodes"); 
   BarcodeData[] barcodes = reader.ReadBarcodes(image, LeadRect.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.PDF417 }, new BarcodeReadOptions[] { options }); 
   Console.WriteLine("{0} barcodes found:", barcodes.Length); 
   foreach (PDF417BarcodeData barcode in barcodes) 
   { 
      Console.WriteLine(" At {0} data: {1} and symbology: {2}", barcode.Bounds, barcode.Value, barcode.Symbology); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
 
import static org.junit.Assert.assertTrue; 
 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
 
import leadtools.*; 
import leadtools.barcode.*; 
import leadtools.codecs.*; 
 
 
public void pdf417Barcode_Example() { 
    final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
    String imageFileName = combine(LEAD_VARS_IMAGES_DIR, "MyPDF417Barcodes.tif"); 
    BarcodeEngine engine = new BarcodeEngine(); 
 
    // Create the image to write the barcodes to 
    int resolution = 300; 
    RasterImage image = RasterImage.create((int) (8.5 * resolution), (int) (11.0 * resolution), 1, resolution, 
            RasterColor.fromKnownColor(RasterKnownColor.WHITE)); 
 
    // Write two PDF417 barcodes 
    writeBarcode(engine.getWriter(), image, "DATA1", 10, 10, true); 
    writeBarcode(engine.getWriter(), image, "DATA2", 20, 20, false); 
 
    // Save the image 
    RasterCodecs codecs = new RasterCodecs(); 
    codecs.save(image, imageFileName, RasterImageFormat.CCITT_GROUP4, 1); 
 
    assertTrue("image unsuccessfully saved", new File(imageFileName).exists()); 
    System.out.println("Command run and image saved to " + imageFileName); 
 
    // Now read the barcodes again 
    image = codecs.load(imageFileName); 
    readBarcodes(engine.getReader(), image); 
    image.dispose(); 
    codecs.dispose(); 
} 
 
// Create the barcode data 
private void writeBarcode(BarcodeWriter writer, RasterImage image, String value, int rows, int columns, boolean topLeft) { 
    PDF417BarcodeData barcode = new PDF417BarcodeData(); 
    barcode.setValue(value); 
    barcode.setGroup(0); 
    barcode.setSymbology(BarcodeSymbology.PDF417); 
 
    // We will use the alignment to position the barcodes, so use all of the image 
    barcode.setBounds(new LeadRect(0, 0, image.getImageWidth(), image.getImageHeight())); 
 
    // Set the write options 
    PDF417BarcodeWriteOptions options = new PDF417BarcodeWriteOptions(); 
 
    if (topLeft) { 
        options.setHorizontalAlignment(BarcodeAlignment.NEAR); 
        options.setVerticalAlignment(BarcodeAlignment.NEAR); 
    } else { 
        options.setHorizontalAlignment(BarcodeAlignment.FAR); 
        options.setVerticalAlignment(BarcodeAlignment.FAR); 
    } 
 
    options.setTruncated(false); 
    options.setEnableGroupMode(false); 
    options.setSymbolWidthAspectRatio(2); 
    options.setSymbolHeightAspectRatio(1); 
    options.setLimitByRowsAndColumns(true); 
    options.setRows(rows); 
    options.setColumns(columns); 
    options.setXModule(30); 
    options.setXModuleAspectRatio(3); 
    options.setECCLevel(PDF417BarcodeECCLevel.LEVEL0); 
    options.setECCPercentage(0); 
 
    // Write it 
    System.out.printf("Writing barcode with symbol rows/columns: %1s/%2s and Data: %3s%n", rows, columns, value); 
    writer.writeBarcode(image, barcode, options); 
} 
 
// Setup read options 
private void readBarcodes(BarcodeReader reader, RasterImage image) { 
    PDF417BarcodeReadOptions options = new PDF417BarcodeReadOptions(); 
    options.setSearchDirection(BarcodeSearchDirection.HORIZONTAL); 
    options.setEnableDoublePass(false); 
    options.setEnableFastMode(false); 
    options.setReadMode(PDF417BarcodeReadMode.MODE0); 
    options.setReturnCorruptedSymbolArea(false); 
    options.setReadOptionalMacroFileNameField(false); 
    options.setReadOptionalMacroSegmentCountField(false); 
    options.setReadOptionalMacroTimestampField(false); 
    options.setReadOptionalMacroSenderField(false); 
    options.setReadOptionalMacroAddresseeField(false); 
    options.setReadOptionalMacroFileSizeField(false); 
    options.setReadOptionalMacroChecksumField(false); 
    options.setReadOptionalMacro79AndAZField(false); 
    options.setEnableDoublePassIfSuccess(true); 
    options.setEnablePreprocessing(true); 
 
    System.out.println("Reading Barcodes"); 
    BarcodeData[] barcodes = reader.readBarcodes(image, LeadRect.getEmpty(), 0, 
            new BarcodeSymbology[] { BarcodeSymbology.PDF417 }, new BarcodeReadOptions[] { options }); 
    System.out.printf("%s barcodes found:%n", barcodes.length); 
    for (BarcodeData barcode : barcodes) { 
        System.out.printf(" At %1s data: %2s and symbology: %3s", barcode.getBounds(), barcode.getValue(), 
                barcode.getSymbology()); 
    } 
} 
 
public static String combine(String path1, String path2) { 
    File file = new File(path1, path2); 
    return file.getPath(); 
}
Requirements

Target Platforms

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