Leadtools.Codecs Namespace > RasterCodecs Class > ReadGeoKey Method : ReadGeoKey(Stream,Int32,Int32) Method |
GeoKey ID. Values of the GeoKey ID range between 0 and 65535. Possible ranges are:
Range | Meaning |
---|---|
0..1023 | Do not use; reserved for future use. |
1024..2047 | GeoTIFF Configuration Keys. |
2048..3071 | Geographic/Geocentric CS Parameter Keys. |
3072..4095 | Projected CS Parameter Keys. |
4096..5119 | Vertical CS Parameter Keys. |
5120..32767 | Reserved. |
32768..65535 | Private use - use to store your own data. |
public RasterTagMetadata ReadGeoKey( Stream stream, int pageNumber, int id )
'Declaration Public Overloads Function ReadGeoKey( _ ByVal stream As Stream, _ ByVal pageNumber As Integer, _ ByVal id As Integer _ ) As RasterTagMetadata
'Usage Dim instance As RasterCodecs Dim stream As Stream Dim pageNumber As Integer Dim id As Integer Dim value As RasterTagMetadata value = instance.ReadGeoKey(stream, pageNumber, id)
public RasterTagMetadata ReadGeoKey( Stream stream, int pageNumber, int id )
function Leadtools.Codecs.RasterCodecs.ReadGeoKey(Stream,Int32,Int32)( stream , pageNumber , id )
public: RasterTagMetadata^ ReadGeoKey( Stream^ stream, int pageNumber, int id )
GeoKey ID. Values of the GeoKey ID range between 0 and 65535. Possible ranges are:
Range | Meaning |
---|---|
0..1023 | Do not use; reserved for future use. |
1024..2047 | GeoTIFF Configuration Keys. |
2048..3071 | Geographic/Geocentric CS Parameter Keys. |
3072..4095 | Projected CS Parameter Keys. |
4096..5119 | Vertical CS Parameter Keys. |
5120..32767 | Reserved. |
32768..65535 | Private use - use to store your own data. |
You can use this method to obtain the GeoKey data from a particular file.
If no such GeoKey exists in the image, this method will return a null reference (Nothing in Visual Basic).
The most efficient way of reading the GeoKeys in a file is to enumerate them with EnumGeoKeys(String,Int32) and then read each GeoKey with ReadGeoKey(String,Int32,Int32).
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2