weka.knowledgeflow.steps

Class ImageViewer

java.lang.Object

weka.knowledgeflow.steps.BaseStep

weka.knowledgeflow.steps.ImageViewer

All Implemented Interfaces:

Serializable, BaseStepExtender, Step

@KFStep(name="ImageViewer",
        category="Visualization",
        toolTipText="View images",
        iconPath="weka/gui/knowledgeflow/icons/StripChart.gif")
public class ImageViewer
extends BaseStep

A step for collecting and viewing image data

Version:

$Revision: $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ImageViewer()

Method Summary

Modifier and Type	Method and Description
Map<String,BufferedImage>	getImages() Get a map of named images that this step has collected
List<String>	getIncomingConnectionTypes() Get a list of acceptable incoming connections - only StepManager.CON_IMAGE in this case
Map<String,String>	getInteractiveViewers() Gets a list of classes of viewers that can be popped up in the GUI Knowledge Flow from this step, given that we have received and stored some image data.
List<String>	getOutgoingConnectionTypes() Get a list of outgoing connections that can be generated given the current state of the step - will produce StepManager.CON_IMAGE data if we have at least one incoming image connection connection
void	processIncoming(Data data) Process incoming image data
void	stepInit() Initialize the step.

Methods inherited from class weka.knowledgeflow.steps.BaseStep

environmentSubstitute, getCustomEditorForStep, getDefaultSettings, getInteractiveViewersImpls, getName, getStepManager, globalInfo, isResourceIntensive, isStopRequested, outputStructureForConnectionType, setName, setStepIsResourceIntensive, setStepManager, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageViewer

public ImageViewer()

Method Detail

stepInit

public void stepInit()

Initialize the step. Nothing to do in the case of this step

getIncomingConnectionTypes

public List<String> getIncomingConnectionTypes()

Get a list of acceptable incoming connections - only StepManager.CON_IMAGE in this case

Returns:

a list of acceptable incoming connections

getOutgoingConnectionTypes

public List<String> getOutgoingConnectionTypes()

Get a list of outgoing connections that can be generated given the current state of the step - will produce StepManager.CON_IMAGE data if we have at least one incoming image connection connection

Returns:

a list of outgoing connections

processIncoming

public void processIncoming(Data data)
                     throws WekaException

Process incoming image data

Specified by:

processIncoming in interface BaseStepExtender

Specified by:

processIncoming in interface Step

Overrides:

processIncoming in class BaseStep

Parameters:

data - the data to process

Throws:

WekaException - if a problem occurs

getImages

public Map<String,BufferedImage> getImages()

Get a map of named images that this step has collected

Returns:

a map of named images

getInteractiveViewers

public Map<String,String> getInteractiveViewers()

Gets a list of classes of viewers that can be popped up in the GUI Knowledge Flow from this step, given that we have received and stored some image data.

Specified by:

getInteractiveViewers in interface Step

Overrides:

getInteractiveViewers in class BaseStep

Returns:

a list of viewer classes