CalculateBounds Method

Summary

Calculates the physical (pixel) bounds and resolution of this SvgDocument.

Syntax

Objective-C

C++/CLI

Java

Python

public void CalculateBounds( 
   bool trimmed 
)

- (BOOL)calculateBounds:(BOOL)trimmed error:(NSError **)error NS_SWIFT_NAME(calculateBounds(trimmed:));

public void calculateBounds(boolean trimmed)

public: 
void CalculateBounds(  
   bool trimmed 
)

def CalculateBounds(self,trimmed):

Parameters

trimmed
true to crop the result bounds using the actual object; otherwise, false.

Remarks

For more information about flat SVG documents and bounds and resolution, refer to SVG Size, Bounds and Flat.

This method will calculate the physical (pixel) bounds of the document by internally enumerating all the elements and resolving the transformation. When this method returns, the members of Bounds will be set as follows:

Member	Description
SvgBounds.IsValid	true
SvgBounds.IsTrimmed	The value of trimmed
SvgBounds.Resolution	A value such as 96 or 300 DPI calculated automatically from the SVG elements. If this value cannot be calculated, it will be set to the default of 0.
SvgBounds.Bounds	The document physical boundaries in pixels.

Use Flat and ToFlat to flatten a document in-place or return a flat copy of an SvgDocument.

Use IsFlat to determine whether this SvgDocument is flat. Use SetFlat to set or clear the internal flattening flag without re-calculating the document's bounds.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.Forms.DocumentWriters; 
using Leadtools.Svg; 
 
using Leadtools.Document.Writer; 
 
public void SvgDocumentExample() 
{ 
   // input directory 
   string inDir = LEAD_VARS.ImagesDir; 
   // output directory 
   string outDir = Path.Combine(LEAD_VARS.ImagesDir, "svgpages"); 
   if (!Directory.Exists(outDir)) 
      Directory.CreateDirectory(outDir); 
 
   using (var codecs = new RasterCodecs()) 
   { 
      // Set 300 as the default value for loading document files 
      codecs.Options.RasterizeDocument.Load.Resolution = 300; 
 
      codecs.ThrowExceptionsOnInvalidImages = false; 
 
      // Get all the files from input directory 
      foreach (var srcFileName in Directory.EnumerateFiles(inDir)) 
      { 
         Console.WriteLine("Checking {0}", srcFileName); 
         using (var info = codecs.GetInformation(srcFileName, false)) 
         { 
            // We can load as SVG if its document or vector (skipping SVG files themselves) 
            if (info.Format != RasterImageFormat.Unknown && // valid format 
               info.Format != RasterImageFormat.Svg && // not svg 
               (info.Document.IsDocumentFile || // a document 
               info.Vector.IsVectorFile)) // or vector 
            { 
               // try to load the first page as SVG 
               try 
               { 
                  using (SvgDocument svgDocument = codecs.LoadSvg(srcFileName, 1, null) as SvgDocument) 
                  { 
                     // Save it to disk 
                     string name = Path.GetFileName(srcFileName).Replace(".", "-"); 
                     name = Path.ChangeExtension(name, "svg"); 
                     string dstFileName = Path.Combine(outDir, name); 
                     Console.WriteLine("Saving to {0}", dstFileName); 
                     svgDocument.SaveToFile(dstFileName, null); 
                  } 
               } 
               catch (Exception ex) 
               { 
                  Console.WriteLine(ex.Message); 
               } 
            } 
         } 
      } 
   } 
} 
 
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 svgDocumentExample() { 
   String LEAD_VARS_ImagesDir = "C:\\LEADTOOLS23\\Resources\\Images"; 
   // input directory 
   String inDir = LEAD_VARS_ImagesDir; 
   // output directory 
   String outDir = combine(LEAD_VARS_ImagesDir, "svgpages"); 
   File outDirr = new File(outDir); 
   if (!outDirr.exists()) { 
      outDirr.mkdirs(); 
   } 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Set 300 as the default value for loading document files 
   codecs.getOptions().getRasterizeDocument().getLoad().setResolution(300); 
 
   codecs.setThrowExceptionsOnInvalidImages(false); 
 
   // Get all the files from input directory 
   try (Stream<Path> stream = Files.walk(Paths.get(inDir), FileVisitOption.FOLLOW_LINKS) 
         .filter(Files::isRegularFile)) { 
      stream.forEach(file -> { 
         System.out.println("Checking " + file.toString()); 
         CodecsImageInfo info = codecs.getInformation(file.toString(), false); 
         // We can load as SVG if its document or vector (skipping SVG files themselves) 
         if (info.getFormat() != RasterImageFormat.UNKNOWN // valid format 
               && info.getFormat() != RasterImageFormat.SVG // not svg 
               && (info.getDocument().isDocumentFile() // a document 
                     || info.getVector().isVectorFile())) { // or vector 
 
            SvgDocument svgDocument = (SvgDocument) codecs.loadSvg(file.toString(), 1, null); 
            // Change file extension 
            int i = file.getFileName().toString().lastIndexOf('.'); 
            String dstFileName = outDirr.toString() + "-" + file.getFileName().toString().substring(0, i) + ".svg"; 
            // Save the file 
            System.out.println("Saving to " + dstFileName); 
            svgDocument.saveToFile(dstFileName, null); 
            assertTrue(new File(dstFileName).exists()); 
         } 
      }); 
   } catch (Exception e) { 
      e.printStackTrace(); 
   } 
 
}

Requirements

Target Platforms

Reference

SvgDocument Class

SvgDocument Members

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Help Version 23.0.2024.5.23

Leadtools.Svg Assembly

Introduction

Getting Started

Namespaces

Leadtools.Svg Namespace

Assemblies