Package org.opensourcephysics.cabrillo.tracker

Class PositionStep

java.lang.Object

org.opensourcephysics.cabrillo.tracker.Step

org.opensourcephysics.cabrillo.tracker.PositionStep

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

MultiPositionStep

public class PositionStep
extends Step

This is a Step that represents a position. It is used by PointMass tracks.

Author:

Douglas Brown

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	PositionStep.Position

Field Summary

Fields

Modifier and Type	Field	Description
protected CircleFootprint	innerCircleFootprint
protected boolean	labelVisible
protected PositionStep.Position	p
protected Map<Integer,Rectangle>	panelLayoutBounds
protected Map<Integer,OSPRuntime.TextLayout>	panelTextLayouts
protected boolean	rolloverVisible

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

dataVisible, defaultIndex, footprint, format, hitRect, n, panelMarks, points, screenPoints, selectionShape, selectionStroke, trackID, transform, type, TYPE_ACCELERATION, TYPE_UNKNOWN, TYPE_VELOCITY, valid

Constructor Summary

Constructors

Constructor	Description
PositionStep(PointMass track, int n, double x, double y)	Constructs a PositionStep with specified image coordinates.

Method Summary

Modifier and Type	Method	Description
Object	clone()	Clones this Step.
void	draw(DrawingPanel panel, Graphics _g)	Overrides Step draw method.
Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix)	Overrides Step findInteractive method.
protected Point	getLayoutPosition(TrackerPanel trackerPanel)	Gets TextLayout screen position.
static XML.ObjectLoader	getLoader()	Returns an ObjectLoader to save and load data for this class.
protected Mark	getMark(TrackerPanel trackerPanel)	Overrides Step getMark method.
PositionStep.Position	getPosition()	Gets the position TPoint.
boolean	isLabelVisible()	Gets the label visibility.
boolean	isRolloverVisible()	Gets the rollover visibility.
void	setLabelVisible(boolean visible)	Sets the label visibility.
void	setRolloverVisible(boolean visible)	Sets the rollover visibility.
String	toString()	Returns a String describing this.

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

dispose, erase, erase, getDefaultPoint, getFrameNumber, getLength, getPointIndex, getPoints, getTrack, remark, remark, repaint, repaint, setDefaultPointIndex, setFootprint, setHitRectCenter

Methods inherited from class java.lang.Object

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

Field Details

p

protected PositionStep.Position p

labelVisible

protected boolean labelVisible

rolloverVisible

protected boolean rolloverVisible

panelTextLayouts

protected Map<Integer,OSPRuntime.TextLayout> panelTextLayouts

panelLayoutBounds

protected Map<Integer,Rectangle> panelLayoutBounds

innerCircleFootprint

protected CircleFootprint innerCircleFootprint

Constructor Details

PositionStep

public PositionStep(PointMass track,
 int n,
 double x,
 double y)

Constructs a PositionStep with specified image coordinates.

Parameters:

track - the PointMass track

n - the frame number

x - the x coordinate

y - the y coordinate

Method Details

getPosition

public PositionStep.Position getPosition()

Gets the position TPoint.

Returns:

the position TPoint

isLabelVisible

public boolean isLabelVisible()

Gets the label visibility.

Returns:

true if label is visible

setLabelVisible

public void setLabelVisible(boolean visible)

Sets the label visibility.

Parameters:

visible - true to make label visible

isRolloverVisible

public boolean isRolloverVisible()

Gets the rollover visibility.

Returns:

true if labels are visible on rollover only

setRolloverVisible

public void setRolloverVisible(boolean visible)

Sets the rollover visibility.

Parameters:

visible - true to make labels visible on rollover only

draw

public void draw(DrawingPanel panel,
 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

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

getMark

protected Mark getMark(TrackerPanel trackerPanel)

Overrides Step getMark method.

Overrides:

getMark in class Step

Parameters:

trackerPanel - the tracker panel

Returns:

the mark

clone

public Object clone()

Clones this Step.

Overrides:

clone in class Step

Returns:

a cloned step

toString

public String toString()

Returns a String describing this.

Overrides:

toString in class Step

Returns:

a descriptive string

getLayoutPosition

protected Point getLayoutPosition(TrackerPanel trackerPanel)

Gets TextLayout screen position.

Parameters:

trackerPanel - the tracker panel

Returns:

the screen position point

getLoader

public static XML.ObjectLoader getLoader()

Returns an ObjectLoader to save and load data for this class.

Returns:

the object loader