public static class Ellipse2D.Double extends Ellipse2D implements Serializable
The Double
class defines an ellipse specified in double
precision.
Ellipse2D.Double, Ellipse2D.Float
public double x
The X coordinate of the upper-left corner of the framing rectangle of this Ellipse2D
.
public double y
The Y coordinate of the upper-left corner of the framing rectangle of this Ellipse2D
.
public double width
The overall width of this Ellipse2D
.
public double height
The overall height of the Ellipse2D
.
public Double()
Constructs a new Ellipse2D
, initialized to location (0, 0) and size (0, 0).
public Double(double x, double y, double w, double h)
Constructs and initializes an Ellipse2D
from the specified coordinates.
x
- the X coordinate of the upper-left corner of the framing rectangley
- the Y coordinate of the upper-left corner of the framing rectanglew
- the width of the framing rectangleh
- the height of the framing rectanglepublic double getX()
Returns the X coordinate of the upper-left corner of the framing rectangle in double
precision.
getX
in class RectangularShape
public double getY()
Returns the Y coordinate of the upper-left corner of the framing rectangle in double
precision.
getY
in class RectangularShape
public double getWidth()
Returns the width of the framing rectangle in double
precision.
getWidth
in class RectangularShape
public double getHeight()
Returns the height of the framing rectangle in double
precision.
getHeight
in class RectangularShape
public boolean isEmpty()
Determines whether the RectangularShape
is empty. When the RectangularShape
is empty, it encloses no area.
isEmpty
in class RectangularShape
true
if the RectangularShape
is empty; false
otherwise.public void setFrame(double x, double y, double w, double h)
Sets the location and size of the framing rectangle of this Shape
to the specified rectangular values.
setFrame
in class RectangularShape
x
- the X coordinate of the upper-left corner of the specified rectangular shapey
- the Y coordinate of the upper-left corner of the specified rectangular shapew
- the width of the specified rectangular shapeh
- the height of the specified rectangular shapeRectangularShape.getFrame()
public Rectangle2D getBounds2D()
Returns a high precision and more accurate bounding box of the Shape
than the getBounds
method. Note that there is no guarantee that the returned Rectangle2D
is the smallest bounding box that encloses the Shape
, only that the Shape
lies entirely within the indicated Rectangle2D
. The bounding box returned by this method is usually tighter than that returned by the getBounds
method and never fails due to overflow problems since the return value can be an instance of the Rectangle2D
that uses double precision values to store the dimensions.
Note that the definition of insideness can lead to situations where points on the defining outline of the shape
may not be considered contained in the returned bounds
object, but only in cases where those points are also not considered contained in the original shape
.
If a point
is inside the shape
according to the contains(point)
method, then it must be inside the returned Rectangle2D
bounds object according to the contains(point)
method of the bounds
. Specifically:
shape.contains(p)
requires bounds.contains(p)
If a point
is not inside the shape
, then it might still be contained in the bounds
object:
bounds.contains(p)
does not imply shape.contains(p)
getBounds2D
in interface Shape
Rectangle2D
that is a high-precision bounding box of the Shape
.Shape.getBounds()
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