diva.sketch.recognition

Class StrokeSceneRecognizer

java.lang.Object

diva.sketch.recognition.StrokeSceneRecognizer

All Implemented Interfaces:

SceneRecognizer

public class StrokeSceneRecognizer
extends Object
implements SceneRecognizer

A scene recognizer that uses a given stroke recognizer so that the results of its single-stroke recognition get added to the scene properly.

Version:

$Revision: 1.12 $

Author:

Michael Shilman (michaels@eecs.berkeley.edu)

Field Summary

Fields

Modifier and Type	Field and Description
static String	STROKE_NAME The string ID to access the child of a scene element.

Constructor Summary

Constructors

Constructor and Description
StrokeSceneRecognizer(StrokeRecognizer r) Construct a scene recognizer using the given stroke recognizer to perform single-stroke recognition.

Method Summary

Modifier and Type	Method and Description
StrokeRecognizer	getStrokeRecognzer() Return the stroke recognizer that this wraps.
SceneDeltaSet	sessionCompleted(StrokeElement[] session, Scene db) Call the child recognizer and add the results, if any, to the given scene database.
SceneDeltaSet	strokeCompleted(StrokeElement se, Scene db) Call the child recognizer and add the results, if any, to the given scene database.
SceneDeltaSet	strokeModified(StrokeElement se, Scene db) Call the child recognizer and add the results, if any, to the given scene database.
SceneDeltaSet	strokeStarted(StrokeElement se, Scene db) Call the child recognizer and add the results, if any, to the given scene database.

Methods inherited from class java.lang.Object

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

Field Detail

STROKE_NAME

public static final String STROKE_NAME

The string ID to access the child of a scene element. When StrokeSceneRecognizer calls a StrokeRecognizer to perform recognition of individual strokes, it uses this name to point from the SceneElement to the StrokeElement in the scene database. To access the stroke use:

 SceneElement parent = ...
 StrokeElement stroke = parent.getChild(
      StrokeSceneRecognizer.STROKE_NAME);
 

assuming that "parent" is the parent of a stroke element.

See Also:

Constant Field Values

Constructor Detail

StrokeSceneRecognizer

public StrokeSceneRecognizer(StrokeRecognizer r)

Construct a scene recognizer using the given stroke recognizer to perform single-stroke recognition.

Method Detail

getStrokeRecognzer

public StrokeRecognizer getStrokeRecognzer()

Return the stroke recognizer that this wraps.

strokeCompleted

public SceneDeltaSet strokeCompleted(StrokeElement se,
                                     Scene db)

Call the child recognizer and add the results, if any, to the given scene database.

Specified by:

strokeCompleted in interface SceneRecognizer

strokeModified

public SceneDeltaSet strokeModified(StrokeElement se,
                                    Scene db)

Call the child recognizer and add the results, if any, to the given scene database.

Specified by:

strokeModified in interface SceneRecognizer

strokeStarted

public SceneDeltaSet strokeStarted(StrokeElement se,
                                   Scene db)

Call the child recognizer and add the results, if any, to the given scene database.

Specified by:

strokeStarted in interface SceneRecognizer

sessionCompleted

public SceneDeltaSet sessionCompleted(StrokeElement[] session,
                                      Scene db)

Call the child recognizer and add the results, if any, to the given scene database. If the session contains more than one stroke, call the child recognizer for each stroke in the session and append the deltas. (FIXME: does this make sense?)

Specified by:

sessionCompleted in interface SceneRecognizer