ClipText Method

Summary

Creates a new DocumentPageText from a portion of this text data.

Syntax

C++/CLI

Java

Python

public DocumentPageText ClipText( 
   LeadRectD bounds 
)

public:  
   DocumentPageText^ ClipText( 
      LeadRectD^ bounds 
   )

public DocumentPageText clipText(LeadRectD bounds)

def ClipText(self,bounds):

Parameters

bounds

The area to clone. This value is in document coordinates.

Return Value

New DocumentPageText that contains only the characters that are included in bounds.

Remarks

Use this method to create a copy of DocumentPageText that contains only the characters that intersect with a specified rectangle. For example, if your application contains functionality where the user can select a portion of the page using rubber band to extract text from, then you can use ClipText on the page object to return a new object that can be used with BuildWords or BuildText to parse only the words and text of the area.

ClipText works by checking the value of DocumentCharacter.Bounds of each item in Characters by intersecting with bounds. If the value intersects, then it is added to the Characters list of the new object.

If the value of bounds is empty (IsEmpty), then this method returns an exact copy of this DocumentPageText.

bounds must be in document coordinates. Refer to Document Library Coordinate System for more information.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Document.Writer; 
 
using Leadtools.Document; 
using Leadtools.Caching; 
using Leadtools.Annotations.Engine; 
using Leadtools.Ocr; 
using Leadtools.Barcode; 
using Leadtools.Document.Converter; 
 
public void DocumentPageTextClipTextExample() 
{ 
   var options = new LoadDocumentOptions(); 
   using (var document = DocumentFactory.LoadFromFile(Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.doc"), options)) 
   { 
      LeadRect clipPixels = LeadRect.FromLTRB(1337, 300, 1545, 347); 
      LeadRectD clipDocument = document.RectToDocument(clipPixels); 
 
      // get text  
      var page = document.Pages[0]; 
      var pageText = page.GetText().ClipText(clipDocument); 
      if (pageText != null) 
      { 
         pageText.BuildText(); 
         var text = pageText.Text; 
 
         Console.WriteLine(text); 
      } 
      else 
      { 
         Console.WriteLine("Failed!"); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

DocumentPageText Class

DocumentPageText Members

Leadtools.Document Namespace

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Help Version 22.0.2023.4.21

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