org.opensourcephysics.cabrillo.tracker
Class LineProfileStep

java.lang.Object
  org.opensourcephysics.cabrillo.tracker.Step
      org.opensourcephysics.cabrillo.tracker.LineProfileStep

All Implemented Interfaces:

java.lang.Cloneable

public class LineProfileStep
extends Step

This is a step for a LineProfile. It is used for obtaining line profile data from a video image.

Author:

Douglas Brown

Field Summary

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.Corner[][]	corners
protected java.util.Map<TrackerPanel,java.awt.Shape>	end0Shapes
protected java.util.Map<TrackerPanel,java.awt.Shape>	end1Shapes
protected boolean	endsEnabled
protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[]	endX
protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[]	endY
protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.Handle	handle
protected LineProfile	line
protected TPoint	lineEnd0
protected TPoint	lineEnd1
protected java.util.Map<TrackerPanel,java.awt.Shape>	shaftShapes
protected java.util.TreeSet<org.opensourcephysics.cabrillo.tracker.LineProfileStep.Intersection>	sorter
protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[][]	sweepX
protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[][]	sweepY
protected java.util.ArrayList<org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridVertex>	vertices

Fields inherited from class org.opensourcephysics.cabrillo.tracker.Step

dataVisible, defaultIndex, footprint, format, frc, hitRect, marks, n, points, screenPoints, selectionShape, track, transform, valid

Constructor Summary

LineProfileStep(LineProfile track, int n, double x1, double y1, double x2, double y2)
Constructs a LineProfileStep with specified end point coordinates in image space.

Method Summary

java.lang.Object	clone() Clones this Step.
void	draw(DrawingPanel panel, java.awt.Graphics _g) Overrides Step draw method.
Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix) Overrides Step findInteractive method.
java.awt.Rectangle	getBounds(TrackerPanel trackerPanel) Overrides Step getBounds method.
TPoint	getHandle() Gets the center handle.
static int	getLength() Gets the step length.
TPoint	getLineEnd0() Gets end 1.
TPoint	getLineEnd1() Gets end 2.
protected Mark	getMark(TrackerPanel trackerPanel) Overrides Step getMark method.
double[][]	getProfileData(TrackerPanel trackerPanel) Gets the line profile data.
boolean	isEndsEnabled() Gets whether the ends are enabled.
protected void	rotate() Rotates this step about its center to keep it either horizontal or parallel to the x-axis.
void	setEndsEnabled(boolean enabled) Enables and disables the interactivity of the ends.
void	setFootprint(Footprint footprint) Overrides Step setFootprint method.
java.lang.String	toString() Returns a String describing this step.

Methods inherited from class org.opensourcephysics.cabrillo.tracker.Step

erase, erase, getDefaultAutotrackIndex, getDefaultPoint, getFrameNumber, getPointIndex, getPoints, getTrack, remark, remark, repaint, repaint, setDefaultPointIndex, setHitRectCenter

Methods inherited from class java.lang.Object

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

Field Detail

lineEnd0

protected TPoint lineEnd0

lineEnd1

protected TPoint lineEnd1

handle

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.Handle handle

endsEnabled

protected boolean endsEnabled

end0Shapes

protected java.util.Map<TrackerPanel,java.awt.Shape> end0Shapes

end1Shapes

protected java.util.Map<TrackerPanel,java.awt.Shape> end1Shapes

shaftShapes

protected java.util.Map<TrackerPanel,java.awt.Shape> shaftShapes

line

protected LineProfile line

corners

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.Corner[][] corners

endX

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[] endX

endY

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[] endY

sweepX

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[][] sweepX

sweepY

protected org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridIntersection[][] sweepY

sorter

protected java.util.TreeSet<org.opensourcephysics.cabrillo.tracker.LineProfileStep.Intersection> sorter

vertices

protected java.util.ArrayList<org.opensourcephysics.cabrillo.tracker.LineProfileStep.GridVertex> vertices

Constructor Detail

LineProfileStep

public LineProfileStep(LineProfile track,
                       int n,
                       double x1,
                       double y1,
                       double x2,
                       double y2)

Constructs a LineProfileStep with specified end point coordinates in image space.

Parameters:

track - the track

n - the frame number

x1 - the x coordinate of end 1

y1 - the y coordinate of end 1

x2 - the x coordinate of end 2

y2 - the y coordinate of end 2

Method Detail

getLineEnd0

public TPoint getLineEnd0()

Gets end 1.

Returns:

end 1

getLineEnd1

public TPoint getLineEnd1()

Gets end 2.

Returns:

end 2

getHandle

public TPoint getHandle()

Gets the center handle.

Returns:

the handle

setEndsEnabled

public void setEndsEnabled(boolean enabled)

Enables and disables the interactivity of the ends.

Parameters:

enabled - true to enable the ends

isEndsEnabled

public boolean isEndsEnabled()

Gets whether the ends are enabled.

Returns:

true if the ends are enabled

setFootprint

public void setFootprint(Footprint footprint)

Overrides Step setFootprint method.

Overrides:

setFootprint in class Step

Parameters:

footprint - the footprint

findInteractive

public Interactive findInteractive(DrawingPanel panel,
                                   int xpix,
                                   int ypix)

Overrides Step findInteractive method.

Overrides:

findInteractive in class Step

Parameters:

panel - the drawing panel

xpix - the x pixel position

ypix - the y pixel position

Returns:

the TPoint that is hit, or null

draw

public void draw(DrawingPanel panel,
                 java.awt.Graphics _g)

Overrides Step draw method.

Overrides:

draw in class Step

Parameters:

panel - the drawing panel requesting the drawing

_g - the graphics context on which to draw

getMark

protected Mark getMark(TrackerPanel trackerPanel)

Overrides Step getMark method.

Overrides:

getMark in class Step

Parameters:

trackerPanel - the tracker panel

Returns:

the mark

getBounds

public java.awt.Rectangle getBounds(TrackerPanel trackerPanel)

Overrides Step getBounds method.

Overrides:

getBounds in class Step

Parameters:

trackerPanel - the tracker panel drawing the step

Returns:

the bounding rectangle

clone

public java.lang.Object clone()

Clones this Step.

Overrides:

clone in class Step

Returns:

a clone of this step

toString

public java.lang.String toString()

Returns a String describing this step.

Overrides:

toString in class Step

Returns:

a descriptive string

getProfileData

public double[][] getProfileData(TrackerPanel trackerPanel)

Gets the line profile data.

Parameters:

trackerPanel - the tracker panel

Returns:

an integer array of values for image pixels along the line

rotate

protected void rotate()

Rotates this step about its center to keep it either horizontal or parallel to the x-axis.

getLength

public static int getLength()

Gets the step length.

Returns:

the length of the points array