ReadGmlData(Stream) Method

Summary

Reads Geography Markup Language (GML) data stored in a JPEG 2000 data stream.

Syntax

C++/CLI

Python

public GmlData ReadGmlData( 
   Stream stream 
)

public: 
GmlData^ ReadGmlData(  
   Stream^ stream 
)

def ReadGmlData(self,stream):

Parameters

stream
A System.IO.Stream containing the JPEG 2000 file data to from which GML information is being read.

Return Value

GmlData object containing the GML information stored in the stream.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Jpeg2000; 
 
 
public void AppendGmlDataStringExample(String inputFile, String outputFile, GmlElement newData) 
{ 
   Jpeg2000Engine engine = new Jpeg2000Engine(); 
   //Read GML data in the input file 
   GmlData gml = engine.ReadGmlData(inputFile); 
   //Add the new gml element data 
   gml.Data.Add(newData); 
   List<int> frames = new List<int>(); 
   //extract all inputfile frames 
   Jpeg2000FileInformation fileInfo = engine.GetFileInformation(inputFile); 
   for (int i = 0; i < fileInfo.Frame.GetLength(0); i++) 
      frames.Add(i); 
   engine.ExtractFrames(inputFile, outputFile, frames); 
   //add all GML data 
   engine.AppendGmlData(outputFile, gml); 
}