Package qupath.lib.gui.images.servers

Class PathHierarchyImageServer

java.lang.Object

qupath.lib.images.servers.AbstractImageServer<BufferedImage>

qupath.lib.images.servers.AbstractTileableImageServer

qupath.lib.gui.images.servers.PathHierarchyImageServer

All Implemented Interfaces:

AutoCloseable, GeneratingImageServer<BufferedImage>, ImageServer<BufferedImage>

public class PathHierarchyImageServer
extends AbstractTileableImageServer
implements GeneratingImageServer<BufferedImage>

A special ImageServer implementation that doesn't have a backing image, but rather constructs tiles on request from a PathObjectHierarchy and its detection objects.

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEFAULT_PREFIX	Prefix used for the path of all instances of this class.

Constructor Summary

Constructors

Constructor	Description
PathHierarchyImageServer(ImageData<BufferedImage> imageData, OverlayOptions options)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected BufferedImage	createDefaultRGBImage(int width, int height)	Create the default (blank) RGB image for this server.
protected String	createID()	Returns a UUID.
protected ImageServerBuilder.ServerBuilder<BufferedImage>	createServerBuilder()	Returns null (does not support ServerBuilders).
ImageServerMetadata	getOriginalMetadata()	Get the original metadata read during creation of the server.
String	getServerType()	A string describing the type of server, for example the name of the library used (Openslide, Bioformats...)
Collection<URI>	getURIs()	Get the URIs for images required for this server.
boolean	isEmptyRegion(RegionRequest request)	Returns true if there are no objects to be painted within the requested region.
protected BufferedImage	readTile(TileRequest tileRequest)	Read a single image tile.
void	setMetadata(ImageServerMetadata metadata)	Throws an exception - metadata should not be set for a hierarchy image server directly.

Methods inherited from class qupath.lib.images.servers.AbstractTileableImageServer

allowSmoothInterpolation, getDefaultColorModel, getEmptyTile, getEmptyTile, getTile, readRegion

Methods inherited from class qupath.lib.images.servers.AbstractImageServer

close, getAssociatedImage, getAssociatedImageList, getBuilder, getCache, getCachedTile, getChannel, getDefaultThumbnail, getDownsampleForResolution, getHeight, getImageClass, getMetadata, getPath, getPixelType, getPreferredDownsamples, getThumbnailDownsampleFactor, getTileRequestManager, getWidth, isRGB, nChannels, nResolutions, nTimepoints, nZSlices, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.AutoCloseable

close

Methods inherited from interface qupath.lib.images.servers.ImageServer

getAssociatedImage, getAssociatedImageList, getBuilder, getCachedTile, getChannel, getDefaultThumbnail, getDownsampleForResolution, getHeight, getImageClass, getMetadata, getPath, getPixelCalibration, getPixelType, getPreferredDownsamples, getTileRequestManager, getWidth, isRGB, nChannels, nResolutions, nTimepoints, nZSlices, readBufferedImage, readRegion, readRegion, readRegion

Field Details

DEFAULT_PREFIX

public static String DEFAULT_PREFIX

Prefix used for the path of all instances of this class. This can be used to help with caching (and in particular with clearing caches selectively).

Constructor Details

PathHierarchyImageServer

public PathHierarchyImageServer(ImageData<BufferedImage> imageData,
 OverlayOptions options)

Constructor.

Parameters:

imageData - the image data

options - options defining how objects will be painted

Method Details

createServerBuilder

protected ImageServerBuilder.ServerBuilder<BufferedImage> createServerBuilder()

Returns null (does not support ServerBuilders).

Specified by:

createServerBuilder in class AbstractImageServer<BufferedImage>

Returns:

getURIs

public Collection<URI> getURIs()

Description copied from interface: ImageServer

Get the URIs for images required for this server. In the simplest case, this is a singleton list returning a URI representing a local file. However, some ImageServers may not have an associated URI at all, whereas others may depend upon multiple URIs (e.g. if concatenating images).

Note: A URI alone may not be sufficient to recreate even a simple ImageServer; see ImageServer.getBuilder().

Specified by:

getURIs in interface ImageServer<BufferedImage>

Returns:

createID

protected String createID()

Returns a UUID.

Specified by:

createID in class AbstractImageServer<BufferedImage>

Returns:

isEmptyRegion

public boolean isEmptyRegion(RegionRequest request)

Returns true if there are no objects to be painted within the requested region.

Specified by:

isEmptyRegion in interface ImageServer<BufferedImage>

Overrides:

isEmptyRegion in class AbstractImageServer<BufferedImage>

Parameters:

request -

Returns:

getServerType

public String getServerType()

Description copied from interface: ImageServer

A string describing the type of server, for example the name of the library used (Openslide, Bioformats...)

Specified by:

getServerType in interface ImageServer<BufferedImage>

Returns:

getOriginalMetadata

public ImageServerMetadata getOriginalMetadata()

Description copied from interface: ImageServer

Get the original metadata read during creation of the server. This may or may not be correct.

Specified by:

getOriginalMetadata in interface ImageServer<BufferedImage>

Returns:

See Also:

• ImageServer.getMetadata()

setMetadata

public void setMetadata(ImageServerMetadata metadata)

Throws an exception - metadata should not be set for a hierarchy image server directly. Any changes should be made to the underlying image server for which this server represents an object hierarchy.

Specified by:

setMetadata in interface ImageServer<BufferedImage>

Overrides:

setMetadata in class AbstractImageServer<BufferedImage>

Parameters:

metadata -

createDefaultRGBImage

protected BufferedImage createDefaultRGBImage(int width,
 int height)

Description copied from class: AbstractTileableImageServer

Create the default (blank) RGB image for this server.

By default this will have TYPE_INT_RGB but a subclass may change this if necessary (e.g. to incorporate an alpha channel).

Overrides:

createDefaultRGBImage in class AbstractTileableImageServer

Parameters:

width -

height -

Returns:

readTile

protected BufferedImage readTile(TileRequest tileRequest)
                          throws IOException

Description copied from class: AbstractTileableImageServer

Read a single image tile.

Specified by:

readTile in class AbstractTileableImageServer

Parameters:

tileRequest -

Returns:

Throws:

IOException