SymbolSize Property

Summary

Gets or sets the Datamatrix barcode symbol size.

Syntax

Objective-C

C++/CLI

Java

Python

public DatamatrixBarcodeSymbolSize SymbolSize { get; set; }

@property (nonatomic, assign) LTDatamatrixBarcodeSymbolSize symbolSize;

public DatamatrixBarcodeSymbolSize getSymbolSize() 
public void setSymbolSize(DatamatrixBarcodeSymbolSize value)

public: 
property DatamatrixBarcodeSymbolSize SymbolSize { 
   DatamatrixBarcodeSymbolSize get(); 
   void set (    DatamatrixBarcodeSymbolSize ); 
}

SymbolSize # get and set (DatamatrixBarcodeData)

Property Value

An DatamatrixBarcodeSymbolSize enumeration member that specifies the Datamatrix barcode symbol size. The default value is DatamatrixBarcodeSymbolSize.AutoSize.

Remarks

The SymbolSize of a Datamatrix barcode controls how much data the barcode can hold. Generally, you should only be concerned with the value of this property when writing barcodes. LEADTOOLS will automatically find the correct symbol and data size from the barcode itself and populate this property and the data with the correct value. Refer to Datamatrix Barcodes in LEADTOOLS for more information.

In addition to the above, the following symbol sizes can be used when writing a Datamatrix barcode:

Symbol size	Description
Auto size (DatamatrixBarcodeSymbolSize.AutoSize)	Uses the minimum required size based on the data inside the barcode (the data set using BarcodeData.SetData)
Fit to bounds (DatamatrixBarcodeSymbolSize.FitToBounds)	Uses as much size to fit the data inside BarcodeData.Bounds.

You can only use the above special Datamatrix barcode symbol sizes when writing a barcode, when reading the Datamatrix barcode back, SymbolSize will be set to one of the other constant values.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void DatamatrixBarcode_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyDatamatrixBarcodes.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 Datamatrix barcodes, a square and a rectangle one 
      WriteBarcode(engine.Writer, image, DatamatrixBarcodeSymbolSize.Size16X36, "Datamatrix1 16x36", false); 
      WriteBarcode(engine.Writer, image, DatamatrixBarcodeSymbolSize.Size132X132, "Datamatrix2 132x132", true); 
 
      // 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)) 
      { 
         // Read only square symbols, should only read the first barcode 
         ReadBarcodes(engine.Reader, image, true); 
 
         // Read all symbols, should read both barcodes 
         ReadBarcodes(engine.Reader, image, false); 
      } 
   } 
} 
 
private void WriteBarcode(BarcodeWriter writer, RasterImage image, DatamatrixBarcodeSymbolSize symbolSize, string value, bool topLeft) 
{ 
   // Create the barcode data 
   DatamatrixBarcodeData barcode = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.Datamatrix) as DatamatrixBarcodeData; 
   barcode.SymbolSize = symbolSize; 
   barcode.Value = value; 
   barcode.Symbology= BarcodeSymbology.Datamatrix; 
 
   // 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 
   DatamatrixBarcodeWriteOptions options = new DatamatrixBarcodeWriteOptions(); 
 
   if (topLeft) 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Near; 
      options.VerticalAlignment = BarcodeAlignment.Near; 
   } 
   else 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Far; 
      options.VerticalAlignment = BarcodeAlignment.Far; 
   } 
 
   options.DisableCompression = false; 
   options.GroupNumber = 0; 
   options.GroupTotal = 0; 
   options.FileIdNumberLowByte = 1; 
   options.FileIdNumberHighByte = 1; 
   options.XModule = 30; 
   options.HRItoGS1 = false; 
 
   // Write it 
   Console.WriteLine("Writing barcode with symbol size: {0} and Data: {1}", symbolSize, value); 
   writer.WriteBarcode(image, barcode, options); 
} 
 
private void ReadBarcodes(BarcodeReader reader, RasterImage image, bool squareOnly) 
{ 
   // Setup read options 
   DatamatrixBarcodeReadOptions options = new DatamatrixBarcodeReadOptions(); 
   options.ReadSquareSymbolsOnly = squareOnly; 
   options.EnableDoublePass = false; 
   options.EnableDoublePassIfSuccess = false; 
   options.EnableInvertedSymbols = false; 
   options.EnableFastMode = true; 
   options.EnableSmallSymbols = true; 
   options.EnablePreprocessing = true; 
   options.GS1toHRI = false; 
 
   Console.WriteLine("Reading Datamatrix barcodes with ReadSquareSymbolsOnly set to {0}", squareOnly); 
   BarcodeData[] barcodes = reader.ReadBarcodes(image, LeadRect.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.Datamatrix }, new BarcodeReadOptions[] { options }); 
   Console.WriteLine("{0} barcodes found:", barcodes.Length); 
   foreach (DatamatrixBarcodeData barcode in barcodes) 
   { 
      Console.WriteLine(" At {0}, symbol size: {1} data: {2} and symbology: {3}", barcode.Bounds, barcode.SymbolSize, barcode.Value, barcode.Symbology); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

DatamatrixBarcodeData Class

DatamatrixBarcodeData Members

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Help Version 22.0.2023.5.9

Leadtools.Barcode Assembly

Introduction

Getting Started

Namespaces

Leadtools.Barcode Namespace

Assemblies