Package noaa.coastwatch.io.tile

Class NCTileSource

java.lang.Object

noaa.coastwatch.io.tile.NCTileSource

All Implemented Interfaces:

TileSource

public class NCTileSource
extends Object
implements TileSource

The NCTileSource class provides tiles from a NetCDF 3 or 4 dataset variable.

Since:

3.3.1

Author:

Peter Hollemans

Constructor Summary

Constructors

Constructor	Description
NCTileSource(ucar.nc2.NetcdfFile file, String varName, int rowIndex, int colIndex, int[] start)	Constructs a new NetCDF tile source to access the specified dataset and variable.

Method Summary

Modifier and Type	Method	Description
TilingScheme	getScheme()	Gets the tiling scheme used to deliver tiles by this source.
static void	main(String[] argv)	Tests this class.
TilingScheme.Tile	readTile(TilingScheme.TilePosition pos)	Reads the specified tile from the source.

Methods inherited from class java.lang.Object

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

Constructor Details

NCTileSource

public NCTileSource(ucar.nc2.NetcdfFile file,
 String varName,
 int rowIndex,
 int colIndex,
 int[] start)
             throws IOException

Constructs a new NetCDF tile source to access the specified dataset and variable.

Parameters:

file - the NetCDF file to access.

varName - the NetCDF variable name to read.

rowIndex - the dimension index to use as the row dimension of the 2D slice.

colIndex - the dimension index to use as the column dimension of the 2D slice.

start - the starting coordinates for the 2D slice, or null to start at the origin.

Throws:

IOException - if a problem occurred accessing the NetCDF file.

ArrayIndexOutOfBoundsException - if the row or column index is out of bounds with respect to the variable dimensions.

IllegalArgumentException - if the start coordinate dimensions do not match the variable.

Method Details

readTile

public TilingScheme.Tile readTile(TilingScheme.TilePosition pos)
                           throws IOException

Description copied from interface: TileSource

Reads the specified tile from the source.

Specified by:

readTile in interface TileSource

Parameters:

pos - the tile position to read.

Returns:

the tile at the specified position.

Throws:

IOException - if an error occurred reading the tile data.

See Also:

• TileSource.getScheme()

getScheme

public TilingScheme getScheme()

Description copied from interface: TileSource

Gets the tiling scheme used to deliver tiles by this source.

Specified by:

getScheme in interface TileSource

Returns:

the tiling scheme.

main

public static void main(String[] argv)
                 throws Exception

Tests this class.

Parameters:

argv - the array of command line parameters.

Throws:

Exception