IOcrZoneManager Interface

Summary

Support for determining the various zone types, recognition modules and fill methods supported by the OCR engine.

Syntax

Objective-C

C++/CLI

Java

Python

public interface IOcrZoneManager

@interface LTOcrZoneManager : NSObject

public class OcrZoneManager

public interface class IOcrZoneManager

class IOcrZoneManager:

Remarks

You can access the instance of the IOcrZoneManager used by an IOcrEngine through the IOcrEngine.ZoneManager property.

When calling the IOcrPage.AutoZone method on a page, the generated zone's type (OcrZone.ZoneType) will always be one of the supported values as reported by the IOcrZoneManager.

Before manually changing any of the above zone properties, you must determine whether the particular value is supported by this instance of IOcrEngine by using IsZoneTypeSupported first.

To get all the supported zone types use GetSupportedZoneTypes.

Example

This example will show the different zone types supported by the LEADTOOLS OCR Module - LEAD Engine.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Ocr; 
using Leadtools.Forms.Common; 
using Leadtools.Document.Writer; 
using Leadtools.WinForms; 
 
public void ZoneManagerExample() 
{ 
   // Create an instance of the engine 
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)) 
   { 
      // Start the engine using default parameters 
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
 
      // Get the zone manager 
      IOcrZoneManager ocrZoneManager = ocrEngine.ZoneManager; 
 
      // Show all the zone types supported by this engine 
      Console.WriteLine("Hit enter to show the supported zone types"); 
      //Console.ReadLine(); 
 
      OcrZoneType[] zoneTypes = ocrZoneManager.GetSupportedZoneTypes(); 
      Console.WriteLine("Supported zone types:"); 
      Console.WriteLine("---------------------"); 
      foreach (OcrZoneType zoneType in zoneTypes) 
         Console.WriteLine("  {0}", zoneType); 
 
      // Shutdown the engine 
      // Note: calling Dispose will also automatically shutdown the engine if it has been started 
      ocrEngine.Shutdown(); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS23\Bin\Common\OcrLEADRuntime"; 
}

 
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.codecs.*; 
import leadtools.ocr.*; 
import leadtools.document.writer.*; 
 
 
public void IOcrZoneManagerExample() { 
   final String OCR_LEAD_RUNTIME_DIR = "C:\\LEADTOOLS23\\Bin\\Common\\OcrLEADRuntime"; 
 
   // Create an instance of the engine 
   OcrEngine ocrEngine = OcrEngineManager.createEngine(OcrEngineType.LEAD); 
 
   // Start the engine using default parameters 
   ocrEngine.startup(null, null, null, OCR_LEAD_RUNTIME_DIR); 
   assertTrue(ocrEngine.isStarted()); 
 
   // Get the zone manager 
   OcrZoneManager ocrZoneManager = ocrEngine.getZoneManager(); 
 
   // Show all the zone types supported by this engine 
   System.out.println("Hit enter to show the supported zone types"); 
 
   OcrZoneType[] zoneTypes = ocrZoneManager.getSupportedZoneTypes(); 
   System.out.println("Supported zone types:"); 
   System.out.println("---------------------"); 
   for (OcrZoneType zoneType : zoneTypes) 
      System.out.printf("  %s", zoneType); 
 
   // Shutdown the engine 
   // Note: calling Dispose will also automatically shutdown the engine if it has 
   // been started 
   ocrEngine.dispose(); 
 
   assertTrue("Length of zone type is not expected value", zoneTypes.length == 11); 
}