public bool Truncated { get; set; }
true to write truncated PDF417 symbols. Otherwise, false. The default value is false.
Truncated PDF417 are symbols that are missing one data crossword and the stop bars. Not all scanners will read Truncated PDF417, however LEADTOOLS will read these symbols normally.
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 toint resolution = 300;using (RasterImage image = RasterImage.Create((int)(8.5 * resolution), (int)(11.0 * resolution), 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))){// Write two PDF417 barcodesWriteBarcode(engine.Writer, image, "DATA1", 10, 10, true);WriteBarcode(engine.Writer, image, "DATA2", 20, 20, false);// Save the imageusing (RasterCodecs codecs = new RasterCodecs()){codecs.Save(image, imageFileName, RasterImageFormat.CcittGroup4, 1);}}// Now read the barcodes againusing (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 dataPDF417BarcodeData 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 imagebarcode.Bounds = new LeadRect(0, 0, image.ImageWidth, image.ImageHeight);// Set the write optionsPDF417BarcodeWriteOptions 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 itConsole.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 optionsPDF417BarcodeReadOptions 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:\LEADTOOLS22\Resources\Images";}