SvgTextData Class

Summary

Contains the data of a text element.

Syntax

Objective-C

C++/CLI

Java

Python

public class SvgTextData

@interface LTSvgTextData : NSObject

public class SvgTextData

public ref class SvgTextData

class SvgTextData:

Remarks

Used as the value of SvgElementInfo.TextData. This member is only valid if the SVG element (SvgElementInfo.ElementType) is a text SVG element.

SvgTextData contains the following:

Member	Value
Text	The text as a string. The number of items in the arrays below is equivalent to the number of characters in this string (System.String.Length).
Bounds	An array of Leadtools.LeadRectD that specifies the physical (pixel) bounds of each character in the text.
CharacterFlags	An array of SvgTextCharacterFlags that specifies the position flags of each character in the text.
Directions	An array of SvgCharacterDirection that specifies the direction of each character in the text.
OcrZoneIndex	Index of the OCR zone containing the text if this SVG document was obtained through OCR.
OcrCharacterIndex	Index of the first OCR character in the text if this SVG document was obtained through OCR.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.Forms.DocumentWriters; 
using Leadtools.Svg; 
 
using Leadtools.Document.Writer; 
 
public void SortElementsExample() 
{ 
   // The source PDF file 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf"); 
   string dstFileName = Path.Combine(LEAD_VARS.ImagesDir, "Example.txt"); 
 
   // SVG sort callback handler 
   SvgSortElementsCallback sortCallback = (callabackDocument, info, userData) => 
   { 
      StreamWriter writer = userData as StreamWriter; 
      // Is it text? 
      SvgTextData textData = info.TextData; 
      if (textData != null) 
      { 
         // Yes, print it to the console 
         writer.Write(textData.Text + " "); 
 
         // See if its end of line 
         var len = textData.Text.Length; 
         if ((textData.CharacterFlags[len - 1] & SvgTextCharacterFlags.EndOfLine) == SvgTextCharacterFlags.EndOfLine) 
            writer.WriteLine(); 
      } 
 
      return true; 
   }; 
 
   using (var codecs = new RasterCodecs()) 
   { 
      // Set 300 as the default value for loading document files 
      codecs.Options.RasterizeDocument.Load.Resolution = 300; 
 
      // get the number of pages 
      int pageCount = codecs.GetTotalPages(srcFileName); 
 
      // Create a writer for the output text file 
      using (StreamWriter writer = File.CreateText(dstFileName)) 
      { 
         for (int pageNumber = 1; pageNumber <= pageCount; pageNumber++) 
         { 
            // Load this page as SVG, we are interested in the text only so 
            // we will ask LEADTOOLS to skip other elements 
            CodecsLoadSvgOptions loadSvgOptions = new CodecsLoadSvgOptions(); 
            loadSvgOptions.DropShapes = false; 
            loadSvgOptions.DropImages = true; 
            loadSvgOptions.DropShapes = true; 
            using (SvgDocument svgDocument = codecs.LoadSvg(srcFileName, pageNumber, loadSvgOptions) as SvgDocument) 
            { 
               // Sort requires a flat document, so check for that 
               if (!svgDocument.IsFlat) 
                  svgDocument.Flat(null); 
 
               if (!svgDocument.Bounds.IsValid) 
                  svgDocument.CalculateBounds(false); 
 
               SvgSortOptions sortOptions = new SvgSortOptions(); 
               sortOptions.ExtractText = SvgExtractText.Word; 
               sortOptions.SortFlags = SvgSortFlags.Default; 
               Console.WriteLine("Text for page {0}", pageNumber); 
               svgDocument.SortElements(sortOptions, sortCallback, writer); 
            } 
         } 
 
         // Show the text file 
         System.Diagnostics.Process.Start(dstFileName); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.ByteArrayInputStream; 
import java.io.ByteArrayOutputStream; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.ObjectInputStream; 
import java.io.ObjectOutputStream; 
import java.io.PrintStream; 
import java.nio.file.FileVisitOption; 
import java.nio.file.Files; 
import java.nio.file.Path; 
import java.nio.file.Paths; 
import java.util.stream.Stream; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.document.writer.*; 
import leadtools.svg.*; 
 
 
public void svgDocumentSortElementsExample() { 
   String LEAD_VARS_ImagesDir = "C:\\LEADTOOLS23\\Resources\\Images"; 
   // The source PDF file 
   String srcFilePath = combine(LEAD_VARS_ImagesDir, "Leadtools_pdf.svg"); 
   String dstFilePath = combine(LEAD_VARS_ImagesDir, "Example.txt"); 
 
   // SVG sort callback handler 
   SvgSortElementsCallback sortCallback = (callbackDocument, info, userData) -> { 
      try { 
         FileOutputStream writer = (FileOutputStream) userData; 
         PrintStream printWriter = new PrintStream(writer); 
         // Is it text? 
         SvgTextData textData = info.getTextData(); 
         if (textData.getText() != null) { 
            // Yes, print it to the console 
            printWriter.print(textData.getText() + " "); 
 
            // See if its end of line 
            int length = textData.getText().length(); 
            if ((textData.getCharacterFlags()[length - 1] 
                  & SvgTextCharacterFlags.END_OF_LINE.getValue()) == SvgTextCharacterFlags.END_OF_LINE.getValue()) 
               printWriter.println(); 
         } 
         writer.flush(); 
      } catch (Exception e) { 
         assertFalse(true); 
         e.printStackTrace(); 
      } 
      return true; 
   }; 
 
   RasterCodecs codecs = new RasterCodecs(); 
   // Set 300 as the default value for loading document files 
   codecs.getOptions().getRasterizeDocument().getLoad().setResolution(300); 
   // get the number of pages 
   int pageCount = codecs.getTotalPages(srcFilePath); 
 
   // Create a stream for the output text file 
   try (FileOutputStream fos = new FileOutputStream(dstFilePath)) { 
      for (int pageNumber = 1; pageNumber <= pageCount; pageNumber++) { 
         // Load this page as SVG, we are interested in the text only so 
         // we will ask LEADTOOLS to skip other elements 
         CodecsLoadSvgOptions loadSvgOptions = new CodecsLoadSvgOptions(); 
         loadSvgOptions.setDropImages(true); 
         loadSvgOptions.setDropShapes(true); 
 
         SvgDocument svgDocument = (SvgDocument) codecs.loadSvg(srcFilePath, pageNumber, loadSvgOptions); 
         // Sort requires a flat document, so check for that 
         if (!svgDocument.isFlat()) 
            svgDocument.flat(null); 
         if (!svgDocument.getBounds().isValid()) 
            svgDocument.calculateBounds(false); 
 
         SvgSortOptions sortOptions = new SvgSortOptions(); 
         sortOptions.setExtractText(SvgExtractText.WORD.getValue()); 
         sortOptions.setSortFlags(SvgSortFlags.DEFAULT.getValue()); 
         System.out.println("Text for page " + pageNumber); 
         svgDocument.sortElements(sortOptions, sortCallback, fos); 
      } 
   } catch (Exception exception) { 
      assertFalse(true); 
      exception.printStackTrace(); 
   } 
 
   System.out.println(sortCallback); 
 
}

Requirements

Target Platforms

Reference

SvgTextData Members

Leadtools.Svg Namespace

Download our FREE evaluation

Help Version 23.0.2024.5.23

Leadtools.Svg Assembly

Introduction

Getting Started

Namespaces

Leadtools.Svg Namespace

Assemblies