Package com.luciad.format.raster

Class TLcdTileDecoder

java.lang.Object

com.luciad.format.raster.ALcdTileDecoder

com.luciad.format.raster.TLcdTileDecoder

All Implemented Interfaces:

ILcdTileDecoder, ILcdInputStreamFactoryCapable

public class TLcdTileDecoder
extends ALcdTileDecoder
implements ILcdTileDecoder

This ILcdTileDecoder decodes uncompressed tiles of bytes, shorts, or integers. Since the tiles don't have a header, their size and type have to be specified explicitly to the decoder. The values are read in traditional scanline order: row by row, left-to-right, top-to-bottom.

This decoder is a limited version of TLcdBILTileDecoder.

This class is thread-safe.

Constructor Summary

Constructors

Constructor	Description
TLcdTileDecoder(int aHeight, int aWidth, int aType)	Creates a new TLcdTileDecoder for tiles with the given specifications.

Method Summary

Modifier and Type	Method	Description
protected ILcdTileInfo	readTileFromStream(InputStream is, int aImageIndex, int aSubTileWidth, int aSubTileHeight, int aRowIndex, int aColumnIndex, ILcdBuffer aBuffer)	Reads a sub-tile from an input stream.

Methods inherited from class com.luciad.format.raster.ALcdTileDecoder

getInputStreamFactory, isTraceOn, readTile, readTile, setClassTraceOn, setInputStreamFactory, setTraceOn

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.luciad.format.raster.ILcdTileDecoder

readTile, readTile

Constructor Details

TLcdTileDecoder

public TLcdTileDecoder(int aHeight,
 int aWidth,
 int aType)

Creates a new TLcdTileDecoder for tiles with the given specifications. Note that the width and height are not in the most conventional order.

Parameters:

aHeight - the tile height.

aWidth - the tile width.

aType - the tile type: ILcdTile.BYTE, ILcdTile.SHORT, or ILcdTile.INT.

Method Details

readTileFromStream

protected ILcdTileInfo readTileFromStream(InputStream is,
 int aImageIndex,
 int aSubTileWidth,
 int aSubTileHeight,
 int aRowIndex,
 int aColumnIndex,
 ILcdBuffer aBuffer)
                                   throws TLcdCodecException

Description copied from class: ALcdTileDecoder

Reads a sub-tile from an input stream.

Specified by:

readTileFromStream in class ALcdTileDecoder

Parameters:

is - the input stream from which the tile data can be read.

aImageIndex - the index of the tile in the given input stream (if applicable).

aSubTileWidth - the width of the sub-tiles, expressed in pixels.

aSubTileHeight - the height of the sub-tiles, expressed in pixels.

aRowIndex - the row number of the sub-tile to be decoded.

aColumnIndex - the column number of the sub-tile to be decoded.

aBuffer - the buffer in which the decoded bytes will be stored.

Returns:

ILcdTileInfo information about the decoded tile.

Throws:

TLcdCodecException - in case of decoding problems.