LoadFromMemory Method
Summary
Creates an
SvgDocument object from data saved in a memory buffer.
Syntax
C#
Objective-C
C++/CLI
Java
Python
- (nullable instancetype)initWithData:(NSData *)data
options:(nullable LTSvgLoadOptions *)options
error:(NSError **)error
Parameters
buffer
Buffer containing the SVG data.
offset
0-based offset into the buffer where the data begins.
length
Number of bytes to read.
options
Options to use during load. If this parameter is null, then a default SvgLoadOptions object will be used.
Return Value
The SvgDocument object this method creates.
Example
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Drawing;
using Leadtools.Forms.DocumentWriters;
using Leadtools.Svg;
using Leadtools.Document.Writer;
public void SvgLoadFromMemoryExample()
{
// Assume the SVG file is located here
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Page1.svg");
// Load the file into memory
byte[] data = File.ReadAllBytes(srcFileName);
// Load the SVG
using (SvgDocument document = SvgDocument.LoadFromMemory(data, 0, data.Length, null))
{
// Prepare it
if (!document.IsFlat)
document.Flat(null);
if (!document.Bounds.IsValid)
document.CalculateBounds(false);
// Show its properties
Console.WriteLine("Bounds: " + document.Bounds.Bounds);
Console.WriteLine("Resolution: " + document.Bounds.Resolution);
}
}
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 svgDocumentLoadFromMemoryExample() {
// Assume the SVG file is located here
String LEAD_VARS_ImagesDir = "C:\\LEADTOOLS23\\Resources\\Images";
String srcFileName = combine(LEAD_VARS_ImagesDir, "Leadtools_pdf.svg");
File file = new File(srcFileName);
// Load the file into memory
try (FileInputStream fis = new FileInputStream(file)) {
byte[] byteArray = new byte[(int) file.length()];
fis.read(byteArray);
// Load the SVG
SvgDocument document = SvgDocument.loadFromMemory(byteArray, 0, byteArray.length, null);
// Prepare it
if (!document.isFlat())
document.flat(null);
if (!document.getBounds().isValid())
document.calculateBounds(false);
// Show its properties
System.out.printf("Bounds: %s%nResolution: %s%n%n", document.getBounds().getBounds(),
document.getBounds().getResolution());
assertTrue(document != null);
} catch (Exception exception) {
exception.printStackTrace();
}
}
