org.deegree.coverage.raster.container
Class GriddedTileContainer

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

All Implemented Interfaces:

TileContainer

Direct Known Subclasses:

GriddedBlobTileContainer, GriddedMemoryTileContainer

public abstract class GriddedTileContainer
extends Object
implements TileContainer

Abstract base class for TileContainers based on a rectangular grid of disjunct, equal-sized cells (raster tiles).

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

protected int	tileSamplesX Number of samples of each raster tile in x-direction.
protected int	tileSamplesY Number of samples of each raster tile in y-direction.

Constructor Summary

protected	GriddedTileContainer(GridMetaInfoFile infoFile) Creates a new GriddedTileContainer instances.
protected	GriddedTileContainer(RasterGeoReference.OriginLocation location, Envelope envelope, int rows, int columns, int tileSamplesX, int tileSamplesY) Creates a new GriddedTileContainer instances.

Method Summary

int	getColumns() Returns the number of columns of the grid.
Envelope	getEnvelope() Returns the envelope of all tiles in this container.
RasterDataInfo	getRasterDataInfo() Return the first tile of this container.
RasterGeoReference	getRasterReference() Returns the RasterReference of all tiles in this container.
ResolutionInfo	getResolutionInfo()
int	getRows() Returns the number of rows of the grid.
abstract AbstractRaster	getTile(int rowId, int columnId) Returns the raster tile at the given grid position.
protected Envelope	getTileEnvelope(int rowId, int columnId) Calculates the envelope for a tile at a given position in the grid.
protected int	getTileId(int columnId, int rowId) Calculates the id for a tile at a given position in the grid.
List<AbstractRaster>	getTiles(Envelope env) Returns all tiles that intersects the envelope.

Methods inherited from class java.lang.Object

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

Field Detail

tileSamplesX

protected final int tileSamplesX

Number of samples of each raster tile in x-direction.

tileSamplesY

protected final int tileSamplesY

Number of samples of each raster tile in y-direction.

Constructor Detail

GriddedTileContainer

protected GriddedTileContainer(GridMetaInfoFile infoFile)

Creates a new GriddedTileContainer instances.

Parameters:

infoFile - containing the relevant information.

GriddedTileContainer

protected GriddedTileContainer(RasterGeoReference.OriginLocation location,
                               Envelope envelope,
                               int rows,
                               int columns,
                               int tileSamplesX,
                               int tileSamplesY)

Creates a new GriddedTileContainer instances.

Parameters:

location -

envelope - area of the samples of the contained tiles

rows - number of rows in the cell grid

columns - number of columns in the cell grid

tileSamplesX - number of samples of each raster tile in x-direction

tileSamplesY - number of samples of each raster tile in y-direction

Method Detail

getTile

public abstract AbstractRaster getTile(int rowId,
                                       int columnId)

Returns the raster tile at the given grid position.

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

getTiles

public List<AbstractRaster> getTiles(Envelope env)

Description copied from interface: TileContainer

Returns all tiles that intersects the envelope.

Specified by:

getTiles in interface TileContainer

Parameters:

env - return List with tiles

Returns:

A List with all intersecting tiles.

getEnvelope

public Envelope getEnvelope()

Description copied from interface: TileContainer

Returns the envelope of all tiles in this container.

Specified by:

getEnvelope in interface TileContainer

Returns:

The envelope of all tiles.

getRasterReference

public RasterGeoReference getRasterReference()

Description copied from interface: TileContainer

Returns the RasterReference of all tiles in this container.

Specified by:

getRasterReference in interface TileContainer

Returns:

The raster envelope of the tiles.

getRows

public int getRows()

Returns the number of rows of the grid.

Returns:

the number of rows

getColumns

public int getColumns()

Returns the number of columns of the grid.

Returns:

the number of columns

getTileId

protected int getTileId(int columnId,
                        int rowId)

Calculates the id for a tile at a given position in the grid.

Parameters:

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

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

Returns:

the tile's id

getTileEnvelope

protected Envelope getTileEnvelope(int rowId,
                                   int columnId)

Calculates the envelope for a tile at a given position in the grid.

Parameters:

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

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

Returns:

the tile's envelope

getRasterDataInfo

public RasterDataInfo getRasterDataInfo()

Description copied from interface: TileContainer

Return the first tile of this container. First is implementation status.

Specified by:

getRasterDataInfo in interface TileContainer

Returns:

the first tile in the container

getResolutionInfo

public ResolutionInfo getResolutionInfo()

Specified by:

getResolutionInfo in interface TileContainer

Returns:

the information about the resolution