Public Overloads Sub WriteGeoKey( _
   ByVal fileName As String, _
   ByVal pageNumber As Integer, _
   ByVal geoKey As RasterTagMetadata _
) 

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim fileName As String Dim pageNumber As Integer Dim geoKey As RasterTagMetadata   instance.WriteGeoKey(fileName, pageNumber, geoKey)

public void WriteGeoKey( 
   string fileName,
   int pageNumber,
   RasterTagMetadata geoKey
)

public:
void WriteGeoKey( 
   String^ fileName,
   int pageNumber,
   RasterTagMetadata geoKey
) 

Parameters

fileName

A String that contains the filename.

pageNumber

1-based index of the page at which to write the GeoKey.

geoKey

GeoKey to identify the data in the Geo TIFF file.

This example will show all the geo keys in the given file then loads them and adds them to a destination file

Visual Basic

Copy Code

Private geoKeySrcFileName As String Private geoKeyDestFileName As String Private Sub WriteGeoKeyExample(ByVal srcFileName As String, ByVal destFileName As String)    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    geoKeySrcFileName = srcFileName    geoKeyDestFileName = destFileName    AddHandler codecs.GeoKeyFound, AddressOf codecs_MyGeyKeyFound    codecs.EnumGeoKeys(srcFileName, 1)    RemoveHandler codecs.GeoKeyFound, AddressOf codecs_MyGeyKeyFound    ' Clean up    codecs.Dispose()    RasterCodecs.Shutdown() End Sub Private Sub codecs_MyGeyKeyFound(ByVal sender As Object, ByVal e As CodecsEnumGeoKeysEventArgs)    Console.WriteLine("GeoKey: Id={0}, Count={1}, Type={2}, DataLength={3}, Data=", e.Id, e.Count, e.MetadataType, e.DataLength)    ' Load this GeoKey    Dim codecs As RasterCodecs = TryCast(sender, RasterCodecs)    Dim geoKey As RasterTagMetadata = codecs.ReadGeoKey(geoKeySrcFileName, 1, e.Id)    ' Write it to the destination file    Console.WriteLine("Wirting this GeoKey to the destination file")    codecs.WriteGeoKey(geoKeyDestFileName, 1, geoKey) End Sub

C#

Copy Code

string geoKeySrcFileName;  string geoKeyDestFileName;    void WriteGeoKeyExample(string srcFileName, string destFileName)  {     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       geoKeySrcFileName = srcFileName;     geoKeyDestFileName = destFileName;       codecs.GeoKeyFound += new EventHandler<CodecsEnumGeoKeysEventArgs>(codecs_MyGeyKeyFound);     codecs.EnumGeoKeys(srcFileName, 1);     codecs.GeoKeyFound -= new EventHandler<CodecsEnumGeoKeysEventArgs>(codecs_MyGeyKeyFound);       // Clean up     codecs.Dispose();     RasterCodecs.Shutdown();  }    void codecs_MyGeyKeyFound(object sender, CodecsEnumGeoKeysEventArgs e)  {     Console.WriteLine("GeoKey: Id={0}, Count={1}, Type={2}, DataLength={3}, Data=", e.Id, e.Count, e.MetadataType, e.DataLength);       // Load this GeoKey     RasterCodecs codecs = sender as RasterCodecs;     RasterTagMetadata geoKey = codecs.ReadGeoKey(geoKeySrcFileName, 1, e.Id);       // Write it to the destination file     Console.WriteLine("Wirting this GeoKey to the destination file");     codecs.WriteGeoKey(geoKeyDestFileName, 1, geoKey);  }

This method writes to or changes the GeoKeys in an existing file.

This method works only with TIFF files. If you also want to write the other TIFF tags and comments, use WriteMarkers instead.

Note: Use this method carefully. LEADTOOLS will not restrict the GeoKeys that you write. If you write bad GeoKeys, the file might become corrupted. Consult the GeoTIFF specification documentation for a list of GeoKeys.

Some restrictions apply to this function if you use an IFD to indicate to which page to write the GeoKey. See the Loading and Saving Large Tiff Files topic for more information.

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference