The Ellipse2D class describes an ellipse that is defined by a framing rectangle.
This class is only the abstract superclass for all objects which store a 2D ellipse. The actual storage representation of the coordinates is left to the subclass.
The Ellipse2D class describes an ellipse that is defined by a framing rectangle. This class is only the abstract superclass for all objects which store a 2D ellipse. The actual storage representation of the coordinates is left to the subclass.
(contains this x y)
(contains this x y w h)
Tests if the interior of the Shape entirely contains the specified rectangular area. All coordinates that lie inside the rectangular area must lie within the Shape for the entire rectangular area to be considered contained within the Shape.
The Shape.contains() method allows a Shape implementation to conservatively return false when:
the intersect method returns true and
the calculations to determine whether or not the Shape entirely contains the rectangular area are prohibitively expensive.
This means that for some Shapes this method might return false even though the Shape contains the rectangular area. The Area class performs more accurate geometric computations than most Shape objects and therefore can be used if a more precise answer is required.
x - the X coordinate of the upper-left corner of the specified rectangular area - double
y - the Y coordinate of the upper-left corner of the specified rectangular area - double
w - the width of the specified rectangular area - double
h - the height of the specified rectangular area - double
returns: true if the interior of the Shape
entirely contains the specified rectangular area;
false otherwise or, if the Shape
contains the rectangular area and the
intersects method returns true
and the containment calculations would be too expensive to
perform. - boolean
Tests if the interior of the Shape entirely contains the specified rectangular area. All coordinates that lie inside the rectangular area must lie within the Shape for the entire rectangular area to be considered contained within the Shape. The Shape.contains() method allows a Shape implementation to conservatively return false when: the intersect method returns true and the calculations to determine whether or not the Shape entirely contains the rectangular area are prohibitively expensive. This means that for some Shapes this method might return false even though the Shape contains the rectangular area. The Area class performs more accurate geometric computations than most Shape objects and therefore can be used if a more precise answer is required. x - the X coordinate of the upper-left corner of the specified rectangular area - `double` y - the Y coordinate of the upper-left corner of the specified rectangular area - `double` w - the width of the specified rectangular area - `double` h - the height of the specified rectangular area - `double` returns: true if the interior of the Shape entirely contains the specified rectangular area; false otherwise or, if the Shape contains the rectangular area and the intersects method returns true and the containment calculations would be too expensive to perform. - `boolean`
(equals this obj)
Determines whether or not the specified Object is equal to this Ellipse2D. The specified Object is equal to this Ellipse2D if it is an instance of Ellipse2D and if its location and size are the same as this Ellipse2D.
obj - an Object to be compared with this Ellipse2D. - java.lang.Object
returns: true if obj is an instance
of Ellipse2D and has the same values;
false otherwise. - boolean
Determines whether or not the specified Object is equal to this Ellipse2D. The specified Object is equal to this Ellipse2D if it is an instance of Ellipse2D and if its location and size are the same as this Ellipse2D. obj - an Object to be compared with this Ellipse2D. - `java.lang.Object` returns: true if obj is an instance of Ellipse2D and has the same values; false otherwise. - `boolean`
(get-path-iterator this at)
Returns an iteration object that defines the boundary of this Ellipse2D. The iterator for this class is multi-threaded safe, which means that this Ellipse2D class guarantees that modifications to the geometry of this Ellipse2D object do not affect any iterations of that geometry that are already in process.
at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired - java.awt.geom.AffineTransform
returns: the PathIterator object that returns the
geometry of the outline of this Ellipse2D,
one segment at a time. - java.awt.geom.PathIterator
Returns an iteration object that defines the boundary of this Ellipse2D. The iterator for this class is multi-threaded safe, which means that this Ellipse2D class guarantees that modifications to the geometry of this Ellipse2D object do not affect any iterations of that geometry that are already in process. at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired - `java.awt.geom.AffineTransform` returns: the PathIterator object that returns the geometry of the outline of this Ellipse2D, one segment at a time. - `java.awt.geom.PathIterator`
(hash-code this)
Returns the hashcode for this Ellipse2D.
returns: the hashcode for this Ellipse2D. - int
Returns the hashcode for this Ellipse2D. returns: the hashcode for this Ellipse2D. - `int`
(intersects this x y w h)
Tests if the interior of the Shape intersects the interior of a specified rectangular area. The rectangular area is considered to intersect the Shape if any point is contained in both the interior of the Shape and the specified rectangular area.
The Shape.intersects() method allows a Shape implementation to conservatively return true when:
there is a high probability that the rectangular area and the Shape intersect, but
the calculations to accurately determine this intersection are prohibitively expensive.
This means that for some Shapes this method might return true even though the rectangular area does not intersect the Shape. The Area class performs more accurate computations of geometric intersection than most Shape objects and therefore can be used if a more precise answer is required.
x - the X coordinate of the upper-left corner of the specified rectangular area - double
y - the Y coordinate of the upper-left corner of the specified rectangular area - double
w - the width of the specified rectangular area - double
h - the height of the specified rectangular area - double
returns: true if the interior of the Shape and
the interior of the rectangular area intersect, or are
both highly likely to intersect and intersection calculations
would be too expensive to perform; false otherwise. - boolean
Tests if the interior of the Shape intersects the interior of a specified rectangular area. The rectangular area is considered to intersect the Shape if any point is contained in both the interior of the Shape and the specified rectangular area. The Shape.intersects() method allows a Shape implementation to conservatively return true when: there is a high probability that the rectangular area and the Shape intersect, but the calculations to accurately determine this intersection are prohibitively expensive. This means that for some Shapes this method might return true even though the rectangular area does not intersect the Shape. The Area class performs more accurate computations of geometric intersection than most Shape objects and therefore can be used if a more precise answer is required. x - the X coordinate of the upper-left corner of the specified rectangular area - `double` y - the Y coordinate of the upper-left corner of the specified rectangular area - `double` w - the width of the specified rectangular area - `double` h - the height of the specified rectangular area - `double` returns: true if the interior of the Shape and the interior of the rectangular area intersect, or are both highly likely to intersect and intersection calculations would be too expensive to perform; false otherwise. - `boolean`
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