org.opensourcephysics.cabrillo.tracker
Class ProtractorStep

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

All Implemented Interfaces:

java.lang.Cloneable

public class ProtractorStep
extends Step

This is a Step for a Protractor. It is used for measuring angles.

Author:

Douglas Brown

Field Summary

protected java.awt.Shape	arcHighlight
protected boolean	drawLayoutBounds
protected TPoint	end1
protected java.util.Map<TrackerPanel,java.awt.Shape>	end1Shapes
protected TPoint	end2
protected java.util.Map<TrackerPanel,java.awt.Shape>	end2Shapes
protected boolean	endsEnabled
protected static java.awt.Font	font
protected org.opensourcephysics.cabrillo.tracker.ProtractorStep.Handle	handle
protected java.util.Map<TrackerPanel,java.awt.Rectangle>	layoutBounds
protected double	line1Angle
protected java.util.Map<TrackerPanel,java.awt.Shape>	line1Shapes
protected double	line2Angle
protected java.util.Map<TrackerPanel,java.awt.Shape>	line2Shapes
protected Protractor	protractor
protected org.opensourcephysics.cabrillo.tracker.ProtractorStep.Rotator	rotator
protected java.util.Map<TrackerPanel,java.awt.Shape>	rotatorShapes
protected java.awt.Shape	selectedShape
protected java.util.Map<TrackerPanel,java.awt.font.TextLayout>	textLayouts
protected static java.awt.geom.AffineTransform	transform
protected TPoint	vertex
protected java.awt.Shape	vertexCircle
protected java.util.Map<TrackerPanel,java.awt.Shape>	vertexShapes

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

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

Constructor Summary

ProtractorStep(Protractor track, int n, double x1, double y1, double x2, double y2)
Constructs a ProtractorStep 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.
static int	getLength() Gets the step length.
protected Mark	getMark(TrackerPanel trackerPanel) Overrides Step getMark method.
double	getProtractorAngle() Gets the protractor angle.
boolean	isEndsEnabled() Gets whether the ends are enabled.
int	n() Returns the frame number.
void	setEndsEnabled(boolean enabled) Enables and disables the interactivity of the ends.
void	setFootprint(Footprint footprint) Overrides Step setFootprint method.
void	setProtractorAngle(double theta) Sets the protractor angle of this tape.
java.lang.String	toString() Returns a String describing this.

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

transform

protected static java.awt.geom.AffineTransform transform

font

protected static java.awt.Font font

protractor

protected Protractor protractor

vertex

protected TPoint vertex

end1

protected TPoint end1

end2

protected TPoint end2

handle

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

rotator

protected org.opensourcephysics.cabrillo.tracker.ProtractorStep.Rotator rotator

line1Angle

protected double line1Angle

line2Angle

protected double line2Angle

endsEnabled

protected boolean endsEnabled

drawLayoutBounds

protected boolean drawLayoutBounds

vertexCircle

protected java.awt.Shape vertexCircle

arcHighlight

protected java.awt.Shape arcHighlight

vertexShapes

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

end1Shapes

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

end2Shapes

protected java.util.Map<TrackerPanel,java.awt.Shape> end2Shapes

line1Shapes

protected java.util.Map<TrackerPanel,java.awt.Shape> line1Shapes

line2Shapes

protected java.util.Map<TrackerPanel,java.awt.Shape> line2Shapes

rotatorShapes

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

textLayouts

protected java.util.Map<TrackerPanel,java.awt.font.TextLayout> textLayouts

layoutBounds

protected java.util.Map<TrackerPanel,java.awt.Rectangle> layoutBounds

selectedShape

protected java.awt.Shape selectedShape

Constructor Detail

ProtractorStep

public ProtractorStep(Protractor track,
                      int n,
                      double x1,
                      double y1,
                      double x2,
                      double y2)

Constructs a ProtractorStep 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

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 Interactive 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

getProtractorAngle

public double getProtractorAngle()

Gets the protractor angle.

Returns:

the angle in radians

setProtractorAngle

public void setProtractorAngle(double theta)

Sets the protractor angle of this tape.

Parameters:

theta - the angle in radians

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.

Overrides:

toString in class Step

Returns:

a descriptive string

n

public int n()

Returns the frame number.

Returns:

the frame number

getLength

public static int getLength()

Gets the step length.

Returns:

the length of the points array