Module java.desktop

Package java.awt.geom

Class Arc2D.Double

java.lang.Object

java.awt.geom.RectangularShape

java.awt.geom.Arc2D

java.awt.geom.Arc2D.Double

All Implemented Interfaces:

Shape, Serializable, Cloneable

Enclosing class:

Arc2D

public static class Arc2D.Double
extends Arc2D
implements Serializable

This class defines an arc specified in double precision.

Since:

1.2

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces declared in class java.awt.geom.Arc2D

Arc2D.Double, Arc2D.Float

Field Summary

Fields

Modifier and Type	Field	Description
double	extent	The angular extent of the arc in degrees.
double	height	The overall height of the full ellipse of which this arc is a partial section (not considering the angular extents).
double	start	The starting angle of the arc in degrees.
double	width	The overall width of the full ellipse of which this arc is a partial section (not considering the angular extents).
double	x	The X coordinate of the upper-left corner of the framing rectangle of the arc.
double	y	The Y coordinate of the upper-left corner of the framing rectangle of the arc.

Fields declared in class java.awt.geom.Arc2D

CHORD, OPEN, PIE

Constructor Summary

Constructors

Constructor	Description
Double()	Constructs a new OPEN arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0).
Double(double x, double y, double w, double h, double start, double extent, int type)	Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.
Double(int type)	Constructs a new arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0), and the specified closure type.
Double(Rectangle2D ellipseBounds, double start, double extent, int type)	Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.

Method Summary

Modifier and Type	Method	Description
double	getAngleExtent()	Returns the angular extent of the arc.
double	getAngleStart()	Returns the starting angle of the arc.
double	getHeight()	Returns the height of the framing rectangle in double precision.
double	getWidth()	Returns the width of the framing rectangle in double precision.
double	getX()	Returns the X coordinate of the upper-left corner of the framing rectangle in double precision.
double	getY()	Returns the Y coordinate of the upper-left corner of the framing rectangle in double precision.
boolean	isEmpty()	Determines whether the RectangularShape is empty.
protected Rectangle2D	makeBounds(double x, double y, double w, double h)	Constructs a Rectangle2D of the appropriate precision to hold the parameters calculated to be the framing rectangle of this arc.
void	setAngleExtent(double angExt)	Sets the angular extent of this arc to the specified double value.
void	setAngleStart(double angSt)	Sets the starting angle of this arc to the specified double value.
void	setArc(double x, double y, double w, double h, double angSt, double angExt, int closure)	Sets the location, size, angular extents, and closure type of this arc to the specified double values.

Methods declared in class java.awt.geom.Arc2D

contains, contains, contains, containsAngle, equals, getArcType, getBounds2D, getEndPoint, getPathIterator, getStartPoint, hashCode, intersects, setAngles, setAngles, setAngleStart, setArc, setArc, setArc, setArcByCenter, setArcByTangent, setArcType, setFrame

Methods declared in class java.awt.geom.RectangularShape

clone, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal

Methods declared in class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

x

public double x

The X coordinate of the upper-left corner of the framing rectangle of the arc.

Since:

1.2

y

public double y

The Y coordinate of the upper-left corner of the framing rectangle of the arc.

Since:

1.2

width

public double width

The overall width of the full ellipse of which this arc is a partial section (not considering the angular extents).

Since:

1.2

height

public double height

The overall height of the full ellipse of which this arc is a partial section (not considering the angular extents).

Since:

1.2

start

public double start

The starting angle of the arc in degrees.

Since:

1.2

extent

public double extent

The angular extent of the arc in degrees.

Since:

1.2

Constructor Details

Double

public Double()

Constructs a new OPEN arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0).

Since:

1.2

Double

public Double(int type)

Constructs a new arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0), and the specified closure type.

Parameters:

type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

Since:

1.2

Double

public Double(double x,
 double y,
 double w,
 double h,
 double start,
 double extent,
 int type)

Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.

Parameters:

x - The X coordinate of the upper-left corner of the arc's framing rectangle.

y - The Y coordinate of the upper-left corner of the arc's framing rectangle.

w - The overall width of the full ellipse of which this arc is a partial section.

h - The overall height of the full ellipse of which this arc is a partial section.

start - The starting angle of the arc in degrees.

extent - The angular extent of the arc in degrees.

type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

Since:

1.2

Double

public Double(Rectangle2D ellipseBounds,
 double start,
 double extent,
 int type)

Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.

Parameters:

ellipseBounds - The framing rectangle that defines the outer boundary of the full ellipse of which this arc is a partial section.

start - The starting angle of the arc in degrees.

extent - The angular extent of the arc in degrees.

type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

Since:

1.2

Method Details

getX

public double getX()

Returns the X coordinate of the upper-left corner of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

Specified by:

getX in class RectangularShape

Returns:

the X coordinate of the upper-left corner of the framing rectangle.

Since:

1.2

getY

public double getY()

Returns the Y coordinate of the upper-left corner of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

Specified by:

getY in class RectangularShape

Returns:

the Y coordinate of the upper-left corner of the framing rectangle.

Since:

1.2

getWidth

public double getWidth()

Returns the width of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

Specified by:

getWidth in class RectangularShape

Returns:

the width of the framing rectangle.

Since:

1.2

getHeight

public double getHeight()

Returns the height of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

Specified by:

getHeight in class RectangularShape

Returns:

the height of the framing rectangle.

Since:

1.2

getAngleStart

public double getAngleStart()

Returns the starting angle of the arc.

Specified by:

getAngleStart in class Arc2D

Returns:

A double value that represents the starting angle of the arc in degrees.

Since:

1.2

See Also:

• Arc2D.setAngleStart(double)

getAngleExtent

public double getAngleExtent()

Returns the angular extent of the arc.

Specified by:

getAngleExtent in class Arc2D

Returns:

A double value that represents the angular extent of the arc in degrees.

Since:

1.2

See Also:

• Arc2D.setAngleExtent(double)

isEmpty

public boolean isEmpty()

Determines whether the RectangularShape is empty. When the RectangularShape is empty, it encloses no area.

Specified by:

isEmpty in class RectangularShape

Returns:

true if the RectangularShape is empty; false otherwise.

Since:

1.2

setArc

public void setArc(double x,
 double y,
 double w,
 double h,
 double angSt,
 double angExt,
 int closure)

Sets the location, size, angular extents, and closure type of this arc to the specified double values.

Specified by:

setArc in class Arc2D

Parameters:

x - The X coordinate of the upper-left corner of the arc.

y - The Y coordinate of the upper-left corner of the arc.

w - The overall width of the full ellipse of which this arc is a partial section.

h - The overall height of the full ellipse of which this arc is a partial section.

angSt - The starting angle of the arc in degrees.

angExt - The angular extent of the arc in degrees.

closure - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

Since:

1.2

setAngleStart

public void setAngleStart(double angSt)

Sets the starting angle of this arc to the specified double value.

Specified by:

setAngleStart in class Arc2D

Parameters:

angSt - The starting angle of the arc in degrees.

Since:

1.2

See Also:

• Arc2D.getAngleStart()

setAngleExtent

public void setAngleExtent(double angExt)

Sets the angular extent of this arc to the specified double value.

Specified by:

setAngleExtent in class Arc2D

Parameters:

angExt - The angular extent of the arc in degrees.

Since:

1.2

See Also:

• Arc2D.getAngleExtent()

makeBounds

protected Rectangle2D makeBounds(double x,
 double y,
 double w,
 double h)

Constructs a Rectangle2D of the appropriate precision to hold the parameters calculated to be the framing rectangle of this arc.

Specified by:

makeBounds in class Arc2D

Parameters:

x - The X coordinate of the upper-left corner of the framing rectangle.

y - The Y coordinate of the upper-left corner of the framing rectangle.

w - The width of the framing rectangle.

h - The height of the framing rectangle.

Returns:

a Rectangle2D that is the framing rectangle of this arc.

Since:

1.2