org.deegree.coverage.raster.container
Class GriddedBlobTileContainer

java.lang.Object
  org.deegree.coverage.raster.container.GriddedTileContainer
      org.deegree.coverage.raster.container.GriddedBlobTileContainer

All Implemented Interfaces:

TileContainer

public class GriddedBlobTileContainer
extends GriddedTileContainer

Concrete implementation of GriddedTileContainer that extracts the tiles from a blob with a custom format. See d3_tools/RasterTreeGridifier on how to create the format.

Version:

$Revision: 31644 $, $Date: 2011-08-24 22:27:43 +0200 (Wed, 24 Aug 2011) $

Author:

Markus Schneider, last edited by: $Author: mschneider $

Field Summary

static String	BLOB_FILE_EXT extension of a blob file.
static String	BLOB_FILE_NAME name of a blob file.

Fields inherited from class org.deegree.coverage.raster.container.GriddedTileContainer

tileSamplesX, tileSamplesY

Constructor Summary

GriddedBlobTileContainer(File blobFile, GridMetaInfoFile metaInfoFile)
A gridded tile container which reads data from a deegree internal format.

GriddedBlobTileContainer(GridMetaInfoFile metaInfoFile, File blobDir)
A gridded tile container which reads data from a deegree internal format.

Method Summary

static GriddedBlobTileContainer	create(File dir, RasterIOOptions options) Reads the index file, 'gridded_raster.info' from the given directory reads the world file information as well as the number of tiles.
AbstractRaster	getTile(int rowId, int columnId) Returns the raster tile at the given grid position.

Methods inherited from class org.deegree.coverage.raster.container.GriddedTileContainer

getColumns, getEnvelope, getRasterDataInfo, getRasterReference, getResolutionInfo, getRows, getTileEnvelope, getTileId, getTiles

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BLOB_FILE_NAME

public static final String BLOB_FILE_NAME

name of a blob file.

See Also:

Constant Field Values

BLOB_FILE_EXT

public static final String BLOB_FILE_EXT

extension of a blob file.

See Also:

Constant Field Values

Constructor Detail

GriddedBlobTileContainer

public GriddedBlobTileContainer(GridMetaInfoFile metaInfoFile,
                                File blobDir)
                         throws IOException

A gridded tile container which reads data from a deegree internal format. See d3_tools/RasterTreeGridifier on how to create the format.

Parameters:

metaInfoFile - encapsulating the values read from the grid meta info file.

blobDir -

Throws:

IOException

GriddedBlobTileContainer

public GriddedBlobTileContainer(File blobFile,
                                GridMetaInfoFile metaInfoFile)
                         throws IOException

A gridded tile container which reads data from a deegree internal format. See d3_tools/RasterTreeGridifier on how to create the format. This methods takes a single bob file instead of scanning a given directory

Parameters:

blobFile - to read the tiles from.

metaInfoFile -

Throws:

IOException

Method Detail

create

public static GriddedBlobTileContainer create(File dir,
                                              RasterIOOptions options)
                                       throws IOException

Reads the index file, 'gridded_raster.info' from the given directory reads the world file information as well as the number of tiles.

Parameters:

dir - to read the gridded_raster.info

options - which will hold information on the file.

Returns:

a GriddedBlobTileContainer instantiated with the values read from the gridded_raster.info.

Throws:

IOException

getTile

public AbstractRaster getTile(int rowId,
                              int columnId)

Description copied from class: GriddedTileContainer

Returns the raster tile at the given grid position.

Specified by:

getTile in class GriddedTileContainer

Parameters:

rowId - row id, must in the range [0 ... #rows - 1]

columnId - column id, must be in the range [0 ... #columns - 1]

Returns:

the raster tile at the given grid position