org.shapelogic.imageprocessing
Class ShortLineBasedVectorizer

java.lang.Object
  org.shapelogic.imageutil.BaseImageOperation
      org.shapelogic.imageprocessing.BaseVectorizer
          org.shapelogic.imageprocessing.ShortLineBasedVectorizer

All Implemented Interfaces:

java.lang.Runnable, java.util.Iterator<Polygon>, IPixelTypeFinder, LazyPlugInFilter<Polygon>, PixelJumperByte, ImageOperation

Direct Known Subclasses:

DirectionBasedVectorizer, LineVectorizer

public abstract class ShortLineBasedVectorizer
extends BaseVectorizer

Base class for vectorizers that are using a local short line, to determine when to set point on multi line. This approach was not very successful.

Author:

Sami Badawi

Field Summary

double	_angleLimit
protected double	_currentAngle
protected CircleInterval	_currentCircleInterval
protected LineType	_currentLineType
protected CPointInt	_currentVectorDirection Short to current point
protected CPointInt	_firstPointInLine Start of current line, this is also the last point saved in the multi line
protected byte	_firstUsedDirection
int	_maxPointsInShortLine
protected PixelTypeCalculator	_pixelTypeCalculatorNextPoint
protected int	_pointsInCurrentShortLine
protected byte	_secondUsedDirection
protected CPointInt	_startOfShortLinePoint Try to do short lines and
static double	ANGLE_DIFFERENCE_LIMIT
static int	MAX_NUMBER_OF_POINTS_IN_SHORT_LINE

Fields inherited from class org.shapelogic.imageprocessing.BaseVectorizer

_cleanedupPolygon, _currentDirection, _currentPixelIndex, _currentPoint, _cyclePoints, _displayInternalInfo, _endPointsClusters, _errorMessage, _firstPointInLineIndex, _firstPointInMultiLine, _matchingOH, _maxX, _maxY, _minX, _minY, _nextCount, _numberOfPointsInAllLines, _pixels, _pixelTypeCalculator, _pixelTypeFinder, _rulesArrayForLetterMatching, _stream, _streamName, _unfinishedPoints, _yForUnporcessedPixel, MAX_DISTANCE_BETWEEN_CLUSTER_POINTS, STRAIGHT_LINE_COLOR

Fields inherited from class org.shapelogic.imageutil.BaseImageOperation

_arg, _guiWrapper, _image, _keyValueParser, _setupReturnValue

Constructor Summary

ShortLineBasedVectorizer()

Method Summary

protected void	findMultiLine() Take point off _unfinishedPoints try to start line from that, if nothing is found the remove point.
protected void	findMultiLinePostProcess() To be overridden.
protected boolean	findMultiLinePreProcess()
protected boolean	findNextLinePoint() Get the next point to investigate from _currentPoint.
double	getAngleLimit()
int	getMaxSinceLast()
protected byte	handleProblematicPoints() Find the maximum if there is more than one the add them all the unknown list.
protected void	internalFactory() All the objects that needs special version should be created here.
protected boolean	lastPixelOk(byte newDirection) Change to be an up front check.
protected void	makeNewPoint()
protected void	makeNewPointPostProcess()
protected void	moveCurrentPointForwards(byte newDirection)
void	newShortLine() Hook for creating new short line.
protected void	resetShortLine()
void	setAngleLimit(double angleLimit)
void	setMaxSinceLast(int maxSinceLast)
protected void	splitLine(CPointInt splitPoint) Insert point between current _firstPointInLine and newFirstPoint.

Methods inherited from class org.shapelogic.imageprocessing.BaseVectorizer

addToUnfinishedPoints, cleanPolygon, countRegionCrossingsAroundPoint, drawLine, drawLines, findAllLines, findFirstLinePoint, findPointType, getCleanedupPolygon, getCyclePoints, getErrorMessage, getImageProcessor, getMatchingOH, getMaxX, getMaxY, getMinX, getMinY, getPixels, getPoints, getPolygon, getStream, getStreamName, hasNext, init, isPixelUsed, matchLines, next, oppesiteDirection, pixelIndexToPoint, pointToPixelIndex, pointToPixelIndex, polygonFactory, remove, run, setStreamName

Methods inherited from class org.shapelogic.imageutil.BaseImageOperation

getGuiWrapper, getImage, getKeyValueParser, getSetupReturnValue, isImageValid, setArg, setGuiWrapper, setKeyValueParser, setSetupReturnValue, setup, showAbout, showMessage

Methods inherited from class java.lang.Object

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

Field Detail

MAX_NUMBER_OF_POINTS_IN_SHORT_LINE

public static final int MAX_NUMBER_OF_POINTS_IN_SHORT_LINE

See Also:

Constant Field Values

ANGLE_DIFFERENCE_LIMIT

public static final double ANGLE_DIFFERENCE_LIMIT

See Also:

Constant Field Values

_angleLimit

public double _angleLimit

_currentAngle

protected double _currentAngle

_pointsInCurrentShortLine

protected int _pointsInCurrentShortLine

_maxPointsInShortLine

public int _maxPointsInShortLine

_secondUsedDirection

protected byte _secondUsedDirection

_startOfShortLinePoint

protected CPointInt _startOfShortLinePoint

Try to do short lines and

_currentVectorDirection

protected CPointInt _currentVectorDirection

Short to current point

_pixelTypeCalculatorNextPoint

protected PixelTypeCalculator _pixelTypeCalculatorNextPoint

_currentCircleInterval

protected CircleInterval _currentCircleInterval

_firstPointInLine

protected CPointInt _firstPointInLine

Start of current line, this is also the last point saved in the multi line

_firstUsedDirection

protected byte _firstUsedDirection

_currentLineType

protected LineType _currentLineType

Constructor Detail

ShortLineBasedVectorizer

public ShortLineBasedVectorizer()

Method Detail

findMultiLine

protected void findMultiLine()

Take point off _unfinishedPoints try to start line from that, if nothing is found the remove point.

Specified by:

findMultiLine in class BaseVectorizer

findMultiLinePostProcess

protected void findMultiLinePostProcess()

Description copied from class: BaseVectorizer

To be overridden. If I want to do more matching at the end.

Overrides:

findMultiLinePostProcess in class BaseVectorizer

findMultiLinePreProcess

protected boolean findMultiLinePreProcess()

Overrides:

findMultiLinePreProcess in class BaseVectorizer

handleProblematicPoints

protected byte handleProblematicPoints()

Find the maximum if there is more than one the add them all the unknown list.

Specified by:

handleProblematicPoints in class BaseVectorizer

newShortLine

public void newShortLine()

Hook for creating new short line.

resetShortLine

protected void resetShortLine()

getMaxSinceLast

public int getMaxSinceLast()

setMaxSinceLast

public void setMaxSinceLast(int maxSinceLast)

setAngleLimit

public void setAngleLimit(double angleLimit)

lastPixelOk

protected boolean lastPixelOk(byte newDirection)

Change to be an up front check.

Specified by:

lastPixelOk in class BaseVectorizer

getAngleLimit

public double getAngleLimit()

moveCurrentPointForwards

protected void moveCurrentPointForwards(byte newDirection)

Overrides:

moveCurrentPointForwards in class BaseVectorizer

makeNewPoint

protected void makeNewPoint()

makeNewPointPostProcess

protected void makeNewPointPostProcess()

internalFactory

protected void internalFactory()

All the objects that needs special version should be created here.

Specified by:

internalFactory in class BaseVectorizer

findNextLinePoint

protected boolean findNextLinePoint()

Get the next point to investigate from _currentPoint. This also contains check if this should cause a new new point to be created. if there is more than one point to chose from add the point to: _unfinishedPoints that is a list of points that need to be revisited. assumes that _pixelTypeCalculator is set to current point

Returns:

true if there are more points

splitLine

protected void splitLine(CPointInt splitPoint)

Insert point between current _firstPointInLine and newFirstPoint. There are currently several things that I am not sure how to handle look in makeNewPoint()