objectdraw
Class Arc

java.lang.Object
  objectdraw.Drawable
      objectdraw.Drawable2D
          objectdraw.Resizable2D
              objectdraw.Rectangular
                  objectdraw.Arc

All Implemented Interfaces:

Serializable, Drawable2DInterface, DrawableInterface, Resizable2DInterface

Direct Known Subclasses:

FilledArc, FramedArc

abstract class Arc
extends Rectangular

Arc is an abstract class to be used as a superclass of FilledArc and FramedArc.

Version:

1.1.1 released February 2005

Field Summary

protected double	arcAngle
protected double	startAngle

Fields inherited from class objectdraw.Rectangular

height, width, x, y

Fields inherited from class objectdraw.Drawable

canvasContent, color, shown

Constructor Summary

Arc(double x, double y, double width, double height, double startAngle, double arcAngle, DrawingCanvas c)
Creates a new FilledArc object.

Arc(Location origin, double width, double height, double startAngle, double arcAngle, DrawingCanvas c)

Arc(Location p0, Location p1, double startAngle, double arcAngle, DrawingCanvas c)
Creates a new FilledArc object.

Method Summary

boolean	contains(Location point) Determines if a particular position on the DrawingCanvas is contained within the object.
double	getArcAngle() Determine the angle spanned by this arc
double	getStartAngle() Determine the starting angle for an arc
void	setArcAngle(double arcAngle) Change the angle spanned by this arc
void	setStartAngle(double startAngle) Change the starting position for this arc
String	toString() Generates a string representation of the object.

Methods inherited from class objectdraw.Rectangular

getBounds, getHeight, getWidth, setBounds, setHeight, setSize, setWidth

Methods inherited from class objectdraw.Resizable2D

move, moveTo

Methods inherited from class objectdraw.Drawable2D

draw, getLocation, getX, getY, overlaps

Methods inherited from class objectdraw.Drawable

addToCanvas, clearCanvasContent, getCanvas, getColor, hide, isHidden, moveTo, removeFromCanvas, sendBackward, sendForward, sendToBack, sendToFront, setCanvasContent, setColor, setStateChanged, show

Methods inherited from class java.lang.Object

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

Methods inherited from interface objectdraw.Drawable2DInterface

getLocation, getX, getY, overlaps

Methods inherited from interface objectdraw.DrawableInterface

addToCanvas, getCanvas, getColor, hide, isHidden, move, moveTo, moveTo, removeFromCanvas, sendBackward, sendForward, sendToBack, sendToFront, setColor, show

Field Detail

arcAngle

protected double arcAngle

startAngle

protected double startAngle

Constructor Detail

Arc

public Arc(double x,
           double y,
           double width,
           double height,
           double startAngle,
           double arcAngle,
           DrawingCanvas c)

Creates a new FilledArc object.

Parameters:

x - coordinate of the upper left corner of the bounding rectangle.

y - coordinate of the upper left corner of the bounding rectangle.

width - the width of the bounding rectangle.

height - the height of the bounding rectangle.

startAngle - the starting angle of the arc.

arcAngle - the ending angle of the arc.

c - the canvas in which the object is created.

Arc

public Arc(Location origin,
           double width,
           double height,
           double startAngle,
           double arcAngle,
           DrawingCanvas c)

Arc

public Arc(Location p0,
           Location p1,
           double startAngle,
           double arcAngle,
           DrawingCanvas c)

Creates a new FilledArc object.

Parameters:

p0 - endpoint of a diagonal of the rectangle

p1 - other diagonal endpoint

startAngle - the starting angle of the arc.

arcAngle - the ending angle of the arc.

c - the canvas in which the object is created

Method Detail

contains

public boolean contains(Location point)

Description copied from interface: DrawableInterface

Determines if a particular position on the DrawingCanvas is contained within the object.

Specified by:

contains in interface DrawableInterface

Overrides:

contains in class Drawable2D

Parameters:

point - the position on the canvas.

Returns:

true if point is contained in the object, false otherwise.

getArcAngle

public double getArcAngle()

Determine the angle spanned by this arc

Returns:

arc angle of this arc.

getStartAngle

public double getStartAngle()

Determine the starting angle for an arc

Returns:

starting angle of this arc.

setArcAngle

public void setArcAngle(double arcAngle)

Change the angle spanned by this arc

Parameters:

arcAngle - - new total angle for this arc.

setStartAngle

public void setStartAngle(double startAngle)

Change the starting position for this arc

Parameters:

startAngle - - new starting angle for this arc.

toString

public String toString()

Generates a string representation of the object.

Overrides:

toString in class Object

Returns:

a string representation of the object.