- java.lang.Object
-
- java.awt.geom.RectangularShape
-
- java.awt.geom.Ellipse2D
-
- java.awt.geom.Ellipse2D.Float
-
- All Implemented Interfaces:
- Shape, Serializable, Cloneable
- Enclosing class:
- Ellipse2D
public static class Ellipse2D.Float extends Ellipse2D implements Serializable
TheFloat
class defines an ellipse specified infloat
precision.- Since:
- 1.2
- See Also:
- Serialized Form
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class java.awt.geom.Ellipse2D
Ellipse2D.Double, Ellipse2D.Float
-
-
Field Summary
Fields Modifier and Type Field and Description float
height
The overall height of thisEllipse2D
.float
width
The overall width of thisEllipse2D
.float
x
The X coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.float
y
The Y coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.
-
Constructor Summary
Constructors Constructor and Description Ellipse2D.Float()
Constructs a newEllipse2D
, initialized to location (0, 0) and size (0, 0).Ellipse2D.Float(float x, float y, float w, float h)
Constructs and initializes anEllipse2D
from the specified coordinates.
-
Method Summary
Methods Modifier and Type Method and Description Rectangle2D
getBounds2D()
Returns a high precision and more accurate bounding box of theShape
than thegetBounds
method.double
getHeight()
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.void
setFrame(float x, float y, float w, float 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
-
-
-
-
Field Detail
-
x
public float x
The X coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.- Since:
- 1.2
-
y
public float y
The Y coordinate of the upper-left corner of the framing rectangle of thisEllipse2D
.- Since:
- 1.2
-
width
public float width
The overall width of thisEllipse2D
.- Since:
- 1.2
-
height
public float height
The overall height of thisEllipse2D
.- Since:
- 1.2
-
-
Constructor Detail
-
Ellipse2D.Float
public Ellipse2D.Float()
Constructs a newEllipse2D
, initialized to location (0, 0) and size (0, 0).- Since:
- 1.2
-
Ellipse2D.Float
public Ellipse2D.Float(float x, float y, float w, float 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
-
-
Method Detail
-
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
-
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
-
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
-
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
-
setFrame
public void setFrame(float x, float y, float w, float h)
Sets the location and size of the framing rectangle of thisShape
to the specified rectangular values.- 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
-
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:
RectangularShape.getFrame()
-
getBounds2D
public Rectangle2D 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:
Shape.getBounds()
-
-
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Vielen Dank im Voraus.
Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-java/awt/geom/ellipse2d.float.html/.html
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