Package com.bc.ceres.glevel.support

Class FileMultiLevelSource

java.lang.Object

com.bc.ceres.glevel.support.AbstractMultiLevelSource

com.bc.ceres.glevel.support.FileMultiLevelSource

All Implemented Interfaces:

MultiLevelSource

public class FileMultiLevelSource
extends AbstractMultiLevelSource

A file based image pyramid. For each level an image file named <basename>.<level>.<extension> is ecpected to exist in the directory given by location.

Since:

BEAM 4.6

Version:

$Revision$ $Date$

Field Summary

Fields inherited from interface com.bc.ceres.glevel.MultiLevelSource

NULL

Constructor Summary

Constructors

Constructor	Description
FileMultiLevelSource(File location, String basename, String extension, MultiLevelModel multiLevelModel)

Method Summary

Modifier and Type	Method	Description
static FileMultiLevelSource	create(File location, String extension, AffineTransform imageToModelTransform, int levelCount)
RenderedImage	createImage(int level)	Called by AbstractMultiLevelSource.getImage(int) if a level image is requested for the first time.
String	getBasename()
String	getExtension()
File	getLocation()

Methods inherited from class com.bc.ceres.glevel.support.AbstractMultiLevelSource

checkLevel, getImage, getImageShape, getModel, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

FileMultiLevelSource

public FileMultiLevelSource(File location,
                            String basename,
                            String extension,
                            MultiLevelModel multiLevelModel)

Method Detail

getLocation

public File getLocation()

getBasename

public String getBasename()

getExtension

public String getExtension()

createImage

public RenderedImage createImage(int level)

Description copied from class: AbstractMultiLevelSource

Called by AbstractMultiLevelSource.getImage(int) if a level image is requested for the first time. Note that images created via this method will be disposed when AbstractMultiLevelSource.reset() is called on this multi-level image source. See AbstractMultiLevelSource.getImage(int).

The dimension of the level image created must be the same as that obtained from {DefaultMultiLevelSource.getLevelImageBounds(Rectangle sourceBounds, double scale)} for the scale associated with the given resolution level.

Specified by:

createImage in class AbstractMultiLevelSource

Parameters:

level - The resolution level.

Returns:

An instance of a RenderedImage for the given resolution level.

create

public static FileMultiLevelSource create(File location,
                                          String extension,
                                          AffineTransform imageToModelTransform,
                                          int levelCount)