Package jj2000.j2k.image

Class DataBlkFloat

java.lang.Object

jj2000.j2k.image.DataBlk

jj2000.j2k.image.DataBlkFloat

public class DataBlkFloat
extends DataBlk

This is an implementation of the DataBlk interface for 32 bit floating point data (float).

The methods in this class are declared final, so that they can be inlined by inlining compilers.

See Also:

DataBlk

Field Summary

Fields

Modifier and Type	Field	Description
float[]	data	The array where the data is stored

Fields inherited from class jj2000.j2k.image.DataBlk

h, offset, progressive, scanw, TYPE_BYTE, TYPE_FLOAT, TYPE_INT, TYPE_SHORT, ulx, uly, w

Constructor Summary

Constructors

Constructor	Description
DataBlkFloat()	Creates a DataBlkFloat with 0 dimensions and no data array (i.e.
DataBlkFloat(int ulx, int uly, int w, int h)	Creates a DataBlkFloat with the specified dimensions and position.
DataBlkFloat(DataBlkFloat src)	Copy constructor.

Method Summary

Modifier and Type	Method	Description
Object	getData()	Returns the array containing the data, or null if there is no data array.
float[]	getDataFloat()	Returns the array containing the data, or null if there is no data array.
int	getDataType()	Returns the identifier of this data type, TYPE_FLOAT, as defined in DataBlk.
void	setData(Object arr)	Sets the data array to the specified one.
void	setDataFloat(float[] arr)	Sets the data array to the specified one.
String	toString()	Returns a string of informations about the DataBlkInt.

Methods inherited from class jj2000.j2k.image.DataBlk

getSize

Methods inherited from class java.lang.Object

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

Field Detail

data

public float[] data

The array where the data is stored

Constructor Detail

DataBlkFloat

public DataBlkFloat()

Creates a DataBlkFloat with 0 dimensions and no data array (i.e. data is null).

DataBlkFloat

public DataBlkFloat(int ulx,
                    int uly,
                    int w,
                    int h)

Creates a DataBlkFloat with the specified dimensions and position. The data array is initialized to an array of size w*h.

Parameters:

ulx - The horizontal coordinate of the upper-left corner of the block

uly - The vertical coordinate of the upper-left corner of the block

w - The width of the block (in pixels)

h - The height of the block (in pixels)

DataBlkFloat

public DataBlkFloat(DataBlkFloat src)

Copy constructor. Creates a DataBlkFloat which is the copy of the DataBlkFloat given as paramter.

Parameters:

DataBlkFloat - the object to be copied.

Method Detail

getDataType

public final int getDataType()

Returns the identifier of this data type, TYPE_FLOAT, as defined in DataBlk.

Specified by:

getDataType in class DataBlk

Returns:

The type of data stored. Always DataBlk.TYPE_FLOAT

See Also:

DataBlk.TYPE_FLOAT

getData

public final Object getData()

Returns the array containing the data, or null if there is no data array. The returned array is a float array.

Specified by:

getData in class DataBlk

Returns:

The array of data (a float[]) or null if there is no data.

See Also:

DataBlk.getDataType()

getDataFloat

public final float[] getDataFloat()

Returns the array containing the data, or null if there is no data array.

Returns:

The array of data or null if there is no data.

setData

public final void setData(Object arr)

Sets the data array to the specified one. The provided array must be a float array, otherwise a ClassCastException is thrown. The size of the array is not checked for consistency with the block's dimensions.

Specified by:

setData in class DataBlk

Parameters:

arr - The data array to use. Must be a float array.

See Also:

DataBlk.getDataType()

setDataFloat

public final void setDataFloat(float[] arr)

Sets the data array to the specified one. The size of the array is not checked for consistency with the block's dimensions.

Parameters:

arr - The data array to use.

toString

public String toString()

Returns a string of informations about the DataBlkInt.

Overrides:

toString in class DataBlk

Returns:

Block dimensions and progressiveness in a string