Java Platform 1.2

java.awt.geom
Class Arc2D.Double

java.lang.Object
  |
  +--java.awt.geom.RectangularShape
        |
        +--java.awt.geom.Arc2D
              |
              +--java.awt.geom.Arc2D.Double

public static class Arc2D.Double
extends Arc2D

An arc specified in double precision,


Inner classes inherited from class java.awt.geom.Arc2D
Arc2D.Double, Arc2D.Float
 
Field Summary
 double extent
          The angular extent of the arc in degrees.
 double height
          The overall height of the full ellipse (not considering the angular extents).
 double start
          The starting angle of the arc in degrees.
 double width
          The overall width of the full ellipse (not considering the angular extents).
 double x
          The x coordinate of the upper left corner of the arc.
 double y
          The y coordinate of the upper left corner of the arc.
 
Fields inherited from class java.awt.geom.Arc2D
CHORD, OPEN, PIE
 
Constructor Summary
Arc2D.Double()
          Constructs a new OPEN arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0).
Arc2D.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.
Arc2D.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.
Arc2D.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
 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 ellipse of which this arc is a partial section
 double getWidth()
          Returns the width of the ellipse of which this arc is a partial section
 double getX()
          Returns the x coordinate of the upper left corner of the arc.
 double getY()
          Returns the y coordinate of the upper left corner of the arc.
 boolean isEmpty()
          Determines whether the arc is empty.
protected  Rectangle2D makeBounds(double x, double y, double w, double h)
          Returns the high-precision bounding box of the 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 inherited from class java.awt.geom.Arc2D
contains, contains, contains, containsAngle, getArcType, getBounds2D, getEndPoint, getPathIterator, getStartPoint, intersects, setAngles, setAngles, setAngleStart, setArc, setArc, setArc, setArcByCenter, setArcByTangent, setArcType, setFrame
 
Methods inherited from class java.awt.geom.RectangularShape
clone, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

x

public double x
The x coordinate of the upper left corner of the arc.

y

public double y
The y coordinate of the upper left corner of the arc.

width

public double width
The overall width of the full ellipse (not considering the angular extents).

height

public double height
The overall height of the full ellipse (not considering the angular extents).

start

public double start
The starting angle of the arc in degrees.

extent

public double extent
The angular extent of the arc in degrees.
Constructor Detail

Arc2D.Double

public Arc2D.Double()
Constructs a new OPEN arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0).

Arc2D.Double

public Arc2D.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: OPEN, CHORD, or PIE.

Arc2D.Double

public Arc2D.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, y - The coordinates of the upper left corner of the arc. (Specified in double precision.)
w - The overall width of the full ellipse of which this arc is a partial section. (Specified in double precision.)
h - The overall height of the full ellipse of which this arc is a partial section. (Specified in double precision.)
angSt - The starting angle of the arc in degrees. (Specified in double precision.)
angExt - The angular extent of the arc in degrees. (Specified in double precision.)
closure - The closure type for the arc: OPEN, CHORD, or PIE.

Arc2D.Double

public Arc2D.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 bounding rectangle that defines the outer boundary of the full ellipse of which this arc is a partial section.
angSt - The starting angle of the arc in degrees. (Specified in double precision.)
angExt - The angular extent of the arc in degrees. (Specified in double precision.)
closure - The closure type for the arc: OPEN, CHORD, or PIE.
Method Detail

getX

public double getX()
Returns the x coordinate of the upper left corner of the arc.
Returns:
The x coordinate of arc's upper left coordinate in double precision.
Overrides:
getX in class RectangularShape

getY

public double getY()
Returns the y coordinate of the upper left corner of the arc.
Returns:
The y coordinate of arc's upper left coordinate in double precision.
Overrides:
getY in class RectangularShape

getWidth

public double getWidth()
Returns the width of the ellipse of which this arc is a partial section
Returns:
A double value that represents the width of the full ellipse of which this arc is a partial section.
Overrides:
getWidth in class RectangularShape

getHeight

public double getHeight()
Returns the height of the ellipse of which this arc is a partial section
Returns:
A double value that represents the height of the full ellipse of which this arc is a partial section.
Overrides:
getHeight in class RectangularShape

getAngleStart

public double getAngleStart()
Returns the starting angle of the arc.
Returns:
A double value that represents the starting angle of the arc in degrees.
Overrides:
getAngleStart in class Arc2D

getAngleExtent

public double getAngleExtent()
Returns the angular extent of the arc.
Returns:
A double value that represents the angular extent of the arc in degrees.
Overrides:
getAngleExtent in class Arc2D

isEmpty

public boolean isEmpty()
Determines whether the arc is empty.
Returns:
true if the arc is empty, false if it not.
Overrides:
isEmpty in class RectangularShape

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.
Parameters:
x, y - The coordinates 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: OPEN, CHORD, or PIE.
Overrides:
setArc in class Arc2D

setAngleStart

public void setAngleStart(double angSt)
Sets the starting angle of this arc to the specified double value.
Parameters:
angSt - The starting angle of the arc in degrees.
Overrides:
setAngleStart in class Arc2D

setAngleExtent

public void setAngleExtent(double angExt)
Sets the angular extent of this arc to the specified double value.
Parameters:
angExt - The angular extent of the arc in degrees.
Overrides:
setAngleExtent in class Arc2D

makeBounds

protected Rectangle2D makeBounds(double x,
                                 double y,
                                 double w,
                                 double h)
Returns the high-precision bounding box of the arc.
Parameters:
x, y - The coordinates 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.
Returns:
The bounding box as a Rectangle2D object.
Overrides:
makeBounds in class Arc2D

Java Platform 1.2

Submit a bug or feature Version 1.2 of Java Platform API Specification
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