Class Ellipse2D.Double
java.lang.Object
java.awt.geom.RectangularShape
java.awt.geom.Ellipse2D
java.awt.geom.Ellipse2D.Double
- All Implemented Interfaces:
Shape
,Serializable
,Cloneable
- Enclosing class:
Ellipse2D
The
Double
class defines an ellipse specified
in double
precision.- Since:
- 1.2
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class java.awt.geom.Ellipse2D
Ellipse2D.Double, Ellipse2D.Float
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Field Summary
Modifier and TypeFieldDescriptiondouble
The overall height of theEllipse2D
.double
The overall width of thisEllipse2D
.double
The X coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.double
The Y coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionReturns a high precision and more accurate bounding box of theShape
than thegetBounds
method.double
Returns the height of the framing rectangle indouble
precision.double
getWidth()
Returns the width of the framing rectangle indouble
precision.double
getX()
Returns the X coordinate of the upper-left corner of the framing rectangle indouble
precision.double
getY()
Returns the Y coordinate of the upper-left corner of the framing rectangle indouble
precision.boolean
isEmpty()
Determines whether theRectangularShape
is empty.void
setFrame
(double x, double y, double w, double h) Sets the location and size of the framing rectangle of thisShape
to the specified rectangular values.Methods inherited from class java.awt.geom.Ellipse2D
contains, contains, equals, getPathIterator, hashCode, intersects
Methods inherited from class java.awt.geom.RectangularShape
clone, contains, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal
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Field Details
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x
public double xThe X coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.- Since:
- 1.2
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y
public double yThe Y coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.- Since:
- 1.2
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width
public double widthThe overall width of thisEllipse2D
.- Since:
- 1.2
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height
public double heightThe overall height of theEllipse2D
.- Since:
- 1.2
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Constructor Details
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Double
public Double()Constructs a newEllipse2D
, initialized to location (0, 0) and size (0, 0).- Since:
- 1.2
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Double
public Double(double x, double y, double w, double h) Constructs and initializes anEllipse2D
from the specified coordinates.- Parameters:
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 rectangle- Since:
- 1.2
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Method Details
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getX
public double getX()Returns the X coordinate of the upper-left corner of the framing rectangle indouble
precision.- Specified by:
getX
in classRectangularShape
- 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 indouble
precision.- Specified by:
getY
in classRectangularShape
- Returns:
- the Y coordinate of the upper-left corner of the framing rectangle.
- Since:
- 1.2
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getWidth
public double getWidth()Returns the width of the framing rectangle indouble
precision.- Specified by:
getWidth
in classRectangularShape
- Returns:
- the width of the framing rectangle.
- Since:
- 1.2
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getHeight
public double getHeight()Returns the height of the framing rectangle indouble
precision.- Specified by:
getHeight
in classRectangularShape
- Returns:
- the height of the framing rectangle.
- Since:
- 1.2
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isEmpty
public boolean isEmpty()Determines whether theRectangularShape
is empty. When theRectangularShape
is empty, it encloses no area.- Specified by:
isEmpty
in classRectangularShape
- Returns:
true
if theRectangularShape
is empty;false
otherwise.- Since:
- 1.2
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setFrame
public void setFrame(double x, double y, double w, double h) Sets the location and size of the framing rectangle of thisShape
to the specified rectangular values.- Specified by:
setFrame
in classRectangularShape
- Parameters:
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 shape- Since:
- 1.2
- See Also:
-
getBounds2D
Returns a high precision and more accurate bounding box of theShape
than thegetBounds
method. Note that there is no guarantee that the returnedRectangle2D
is the smallest bounding box that encloses theShape
, only that theShape
lies entirely within the indicatedRectangle2D
. The bounding box returned by this method is usually tighter than that returned by thegetBounds
method and never fails due to overflow problems since the return value can be an instance of theRectangle2D
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 returnedbounds
object, but only in cases where those points are also not considered contained in the originalshape
.If a
point
is inside theshape
according to thecontains(point)
method, then it must be inside the returnedRectangle2D
bounds object according to thecontains(point)
method of thebounds
. Specifically:shape.contains(p)
requiresbounds.contains(p)
If a
point
is not inside theshape
, then it might still be contained in thebounds
object:bounds.contains(p)
does not implyshape.contains(p)
- Specified by:
getBounds2D
in interfaceShape
- Returns:
- an instance of
Rectangle2D
that is a high-precision bounding box of theShape
. - Since:
- 1.2
- See Also:
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