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java.awt.geom
Class CubicCurve2D
java.lang.Object
java.awt.geom.CubicCurve2D
-
All Implemented Interfaces:
-
Shape
,
Cloneable
-
Direct Known Subclasses:
-
CubicCurve2D.Double
,
CubicCurve2D.Float
-
public abstract class CubicCurve2D
- extends Object
- implements Shape, Cloneable
The CubicCurve2D class defines a cubic parametric curve segment in
(x,y)
(x, y)
coordinate space.
This class is only the abstract superclass for all objects which store a 2D cubic curve segment. The actual storage representation of the coordinates is left to the subclass.
-
Since:
-
1.2
Nested Class Summary
|
static class |
CubicCurve2D.Double
A cubic parametric curve segment specified with double coordinates. |
static class |
CubicCurve2D.Float
A cubic parametric curve segment specified with float coordinates. |
Constructor Summary
|
protected |
CubicCurve2D
()
This is an abstract class that cannot be instantiated directly. |
Method Summary
|
Object
|
clone
()
Creates a new object of the same class as this object. |
boolean |
contains
(double x, double y)
Tests if
the
a
specified
coordinates are
coordinate is
inside the boundary of the
Shape.
shape.
|
boolean |
contains
(double x, double y, double w, double h)
Tests if the interior of the
Shape
shape
entirely contains the specified
set of
rectangular
area.
coordinates.
|
boolean |
contains
(
Point2D
Tests if a specified
Point2D
Point2D is inside the boundary of the shape.
|
boolean |
contains
(
Rectangle2D
Tests if the interior of the
Shape
shape
entirely contains the specified Rectangle2D. |
Rectangle
|
getBounds
()
Returns
an integer
Rectangle
the bounding box of the shape.
|
abstract
Point2D
|
getCtrlP1
()
Returns the first control point. |
abstract
Point2D
|
getCtrlP2
()
Returns the second control point. |
abstract double |
getCtrlX1
()
Returns the X coordinate of the first control point in double precision. |
abstract double |
getCtrlX2
()
Returns the X coordinate of the second control point in double precision. |
abstract double |
getCtrlY1
()
Returns the Y coordinate of the first control point in double precision. |
abstract double |
getCtrlY2
()
Returns the Y coordinate of the second control point in double precision. |
double |
getFlatness
()
Returns the flatness of this curve. |
static double |
getFlatness
(double[] coords, int offset)
Returns the flatness of the cubic curve specified by the
control points
controlpoints
stored in the indicated array at the indicated index. |
static double |
getFlatness
(double x1, double y1, double ctrlx1, double ctrly1, double ctrlx2, double ctrly2, double x2, double y2)
Returns the flatness of the cubic curve specified by the indicated
control points.
controlpoints.
|
double |
getFlatnessSq
()
Returns the square of the flatness of this curve. |
static double |
getFlatnessSq
(double[] coords, int offset)
Returns the square of the flatness of the cubic curve specified by the
control points
controlpoints
stored in the indicated array at the indicated index. |
static double |
getFlatnessSq
(double x1, double y1, double ctrlx1, double ctrly1, double ctrlx2, double ctrly2, double x2, double y2)
Returns the square of the flatness of the cubic curve specified by the indicated
control points.
controlpoints.
|
abstract
Point2D
|
getP1
()
Returns the start point. |
abstract
Point2D
|
getP2
()
Returns the end point. |
PathIterator
|
getPathIterator
(
AffineTransform
at)
Returns an iteration object that defines the boundary of the shape. |
PathIterator
|
getPathIterator
(
AffineTransform
at, double flatness)
Return an iteration object that defines the boundary of the flattened shape. |
abstract double |
getX1
()
Returns the X coordinate of the start point in double precision. |
abstract double |
getX2
()
Returns the X coordinate of the end point in double precision. |
abstract double |
getY1
()
Returns the Y coordinate of the start point in double precision. |
abstract double |
getY2
()
Returns the Y coordinate of the end point in double precision. |
boolean |
intersects
(double x, double y, double w, double h)
Tests if the
interior of the Shape
shape
intersects the interior of a specified
set of
rectangular
area.
coordinates.
|
boolean |
intersects
(
Rectangle2D
Tests if the
interior of the Shape
shape
intersects the interior of a specified Rectangle2D. |
void |
setCurve
(
CubicCurve2D
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the same as those in the specified CubicCurve2D. |
void |
setCurve
(double[] coords, int offset)
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the double coordinates at the specified offset in the specified array. |
abstract void |
setCurve
(double x1, double y1, double ctrlx1, double ctrly1, double ctrlx2, double ctrly2, double x2, double y2)
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the specified double coordinates. |
void |
setCurve
(
Point2D
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the coordinates of the Point2D objects at the specified offset in the specified array. |
void |
setCurve
(
Point2D
p1,
Point2D
cp1,
Point2D
cp2,
Point2D
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the specified Point2D coordinates. |
static int |
solveCubic
(double[] eqn)
Solves the cubic whose coefficients are in the eqn array and places the non-complex roots back into the same array, returning the number of roots. |
static int |
solveCubic
(double[] eqn, double[] res)
Solve the cubic whose coefficients are in the eqn array and place the non-complex roots into the res array, returning the number of roots. |
void |
subdivide
(
CubicCurve2D
left,
CubicCurve2D
right)
Subdivides this cubic curve and stores the resulting two subdivided curves into the left and right curve parameters. |
static void |
subdivide
(
CubicCurve2D
src,
CubicCurve2D
left,
CubicCurve2D
right)
Subdivides the cubic curve specified by the src parameter and stores the resulting two subdivided curves into the left and right curve parameters. |
static void |
subdivide
(double[] src, int srcoff, double[] left, int leftoff, double[] right, int rightoff)
Subdivides the cubic curve specified by the coordinates stored in the src array at indices srcoff through (srcoff + 7) and stores the resulting two subdivided curves into the two result arrays at the corresponding indices. |
CubicCurve2D
protected CubicCurve2D()
-
This is an abstract class that cannot be instantiated directly. Type-specific implementation subclasses are available for instantiation and provide a number of formats for storing the information necessary to satisfy the various accessor methods below.
-
Since:
-
1.2
-
See Also:
-
CubicCurve2D.Float
,
CubicCurve2D.Double
getX1
public abstract double getX1()
-
Returns the X coordinate of the start point in double precision.
-
-
-
Returns:
-
the X coordinate of the start point of the CubicCurve2D.
-
Since:
-
1.2
getY1
public abstract double getY1()
-
Returns the Y coordinate of the start point in double precision.
-
-
-
Returns:
-
the Y coordinate of the start point of the CubicCurve2D.
-
Since:
-
1.2
getP1
public abstract Point2D getP1()
-
Returns the start point.
-
-
-
Returns:
-
a Point2D that is the start point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlX1
public abstract double getCtrlX1()
-
Returns the X coordinate of the first control point in double precision.
-
-
-
Returns:
-
the X coordinate of the first control point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlY1
public abstract double getCtrlY1()
-
Returns the Y coordinate of the first control point in double precision.
-
-
-
Returns:
-
the Y coordinate of the first control point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlP1
public abstract Point2D getCtrlP1()
-
Returns the first control point.
-
-
-
Returns:
-
a Point2D that is the first control point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlX2
public abstract double getCtrlX2()
-
Returns the X coordinate of the second control point in double precision.
-
-
-
Returns:
-
the X coordinate of the second control point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlY2
public abstract double getCtrlY2()
-
Returns the Y coordinate of the second control point in double precision.
-
-
-
Returns:
-
the Y coordinate of the second control point of the CubicCurve2D.
-
Since:
-
1.2
getCtrlP2
public abstract Point2D getCtrlP2()
-
Returns the second control point.
-
-
-
Returns:
-
a Point2D that is the second control point of the CubicCurve2D.
-
Since:
-
1.2
getX2
public abstract double getX2()
-
Returns the X coordinate of the end point in double precision.
-
-
-
Returns:
-
the X coordinate of the end point of the CubicCurve2D.
-
Since:
-
1.2
getY2
public abstract double getY2()
-
Returns the Y coordinate of the end point in double precision.
-
-
-
Returns:
-
the Y coordinate of the end point of the CubicCurve2D.
-
Since:
-
1.2
getP2
public abstract Point2D getP2()
-
Returns the end point.
-
-
-
Returns:
-
a Point2D that is the end point of the CubicCurve2D.
-
Since:
-
1.2
setCurve
public abstract void setCurve(double x1,
double y1,
double ctrlx1,
double ctrly1,
double ctrlx2,
double ctrly2,
double x2,
double y2)
-
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the specified double coordinates.
-
-
-
Parameters:
-
x1
x1, y1
- the
X coordinate
first specified coordinates
used to set the start point of this CubicCurve2D -
y1
ctrlx1, ctrly1
- the
Y coordinate
second specified coordinates
used to set the
start
first control
point of this CubicCurve2D -
ctrlx1
ctrlx2, ctrly2
- the
X coordinate
third specified coordinates
used to set the
first
second
control point of this CubicCurve2D -
ctrly1 - the Y coordinate used to set the first control point of this CubicCurve2D
-
ctrlx2 - the X coordinate used to set the second control point of this CubicCurve2D
-
ctrly2 - the Y coordinate used to set the second control point of this CubicCurve2D
-
x2 - the X coordinate used to set the end point of this CubicCurve2D
-
y2 - the Y coordinate used to set the end point of this CubicCurve2D
-
Since:
-
1.2
x2, y2 - the fourth specified coordinates used to set the end point of this CubicCurve2D
setCurve
public void setCurve(double[] coords,
int offset)
-
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the double coordinates at the specified offset in the specified array.
-
-
-
Parameters:
-
coords - a double array containing coordinates
-
offset - the index of coords
from
at
which to begin setting the
end points
endpoints
and
control points
controlpoints
of this curve to the coordinates contained in coords -
Since:
-
1.2
setCurve
public void setCurve(Point2D p1,
Point2D cp1,
Point2D cp2,
Point2D p2)
-
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the specified Point2D coordinates.
-
-
-
Parameters:
-
p1 - the first specified Point2D used to set the start point of this curve
-
cp1 - the second specified Point2D used to set the first control point of this curve
-
cp2 - the third specified Point2D used to set the second control point of this curve
-
p2 - the fourth specified Point2D used to set the end point of this curve
-
Since:
-
1.2
setCurve
public void setCurve(Point2D[] pts,
int offset)
-
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the coordinates of the Point2D objects at the specified offset in the specified array.
-
-
-
Parameters:
-
pts - an array of Point2D objects
-
offset - the index of pts
from
at
which to begin setting the
end points
endpoints
and
control points
controlpoints
of this curve to the points contained in pts -
Since:
-
1.2
setCurve
public void setCurve(CubicCurve2D c)
-
Sets the location of the
end points
endpoints
and
control points
controlpoints
of this curve to the same as those in the specified CubicCurve2D.
-
-
-
Parameters:
-
c - the specified CubicCurve2D
-
Since:
-
1.2
getFlatnessSq
public static double getFlatnessSq(double x1,
double y1,
double ctrlx1,
double ctrly1,
double ctrlx2,
double ctrly2,
double x2,
double y2)
-
Returns the square of the flatness of the cubic curve specified by the indicated
control points.
controlpoints.
The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Parameters:
-
x1
x1, y1
- the
X coordinate
first specified coordinates
that
specifies
specify
the start point of a CubicCurve2D -
y1
ctrlx1, ctrly1
- the
Y coordinate
second specified coordinates
that
specifies
specify
the
start
first control
point of a CubicCurve2D -
ctrlx1
ctrlx2, ctrly2
- the
X coordinate
third specified coordinates
that
specifies
specify
the
first
second
control point of a CubicCurve2D -
ctrly1 - the Y coordinate that specifies the first control point of a CubicCurve2D
-
ctrlx2 - the X coordinate that specifies the second control point of a CubicCurve2D
-
ctrly2 - the Y coordinate that specifies the second control point of a CubicCurve2D
-
x2 - the X coordinate that specifies the end point of a CubicCurve2D
-
y2 - the Y coordinate that specifies the end point of a CubicCurve2D
x2, y2 - the fourth specified coordinates that specify the end point of a CubicCurve2D
-
Returns:
-
the square of the flatness of the CubicCurve2D represented by the specified coordinates.
-
Since:
-
1.2
getFlatness
public static double getFlatness(double x1,
double y1,
double ctrlx1,
double ctrly1,
double ctrlx2,
double ctrly2,
double x2,
double y2)
-
Returns the flatness of the cubic curve specified by the indicated
control points.
controlpoints.
The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Parameters:
-
x1
x1, y1
- the
X coordinate
first specified coordinates
that
specifies
specify
the start point of a CubicCurve2D -
y1
ctrlx1, ctrly1
- the
Y coordinate
second specified coordinates
that
specifies
specify
the
start
first control
point of a CubicCurve2D -
ctrlx1
ctrlx2, ctrly2
- the
X coordinate
third specified coordinates
that
specifies
specify
the
first
second
control point of a CubicCurve2D -
ctrly1 - the Y coordinate that specifies the first control point of a CubicCurve2D
-
ctrlx2 - the X coordinate that specifies the second control point of a CubicCurve2D
-
ctrly2 - the Y coordinate that specifies the second control point of a CubicCurve2D
-
x2 - the X coordinate that specifies the end point of a CubicCurve2D
-
y2 - the Y coordinate that specifies the end point of a CubicCurve2D
x2, y2 - the fourth specified coordinates that specify the end point of a CubicCurve2D
-
Returns:
-
the flatness of the CubicCurve2D represented by the specified coordinates.
-
Since:
-
1.2
getFlatnessSq
public static double getFlatnessSq(double[] coords,
int offset)
-
Returns the square of the flatness of the cubic curve specified by the
control points
controlpoints
stored in the indicated array at the indicated index. The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Parameters:
-
coords - an array containing coordinates
-
offset - the index of coords
from
at
which to begin
getting
setting
the
end points
endpoints
and
control points
controlpoints
of
this curve to
the
curve
coordinates contained in coords
-
Returns:
-
the square of the flatness of the CubicCurve2D specified by the coordinates in coords at the specified offset.
-
Since:
-
1.2
getFlatness
public static double getFlatness(double[] coords,
int offset)
-
Returns the flatness of the cubic curve specified by the
control points
controlpoints
stored in the indicated array at the indicated index. The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Parameters:
-
coords - an array containing coordinates
-
offset - the index of coords
from
at
which to begin
getting
setting
the
end points
endpoints
and
control points
controlpoints
of
this curve to
the
curve
coordinates contained in coords
-
Returns:
-
the flatness of the CubicCurve2D specified by the coordinates in coords at the specified offset.
-
Since:
-
1.2
getFlatnessSq
public double getFlatnessSq()
-
Returns the square of the flatness of this curve. The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Returns:
-
the square of the flatness of this curve.
-
Since:
-
1.2
getFlatness
public double getFlatness()
-
Returns the flatness of this curve. The flatness is the maximum distance of a
control point
controlpoint
from the line connecting the
end points.
endpoints.
-
-
-
Returns:
-
the flatness of this curve.
-
Since:
-
1.2
subdivide
public void subdivide(CubicCurve2D left,
CubicCurve2D right)
-
Subdivides this cubic curve and stores the resulting two subdivided curves into the left and right curve parameters. Either or both of the left and right objects may be the same as this object or null.
-
-
-
Parameters:
-
left - the cubic curve object for storing for the left or first half of the subdivided curve
-
right - the cubic curve object for storing for the right or second half of the subdivided curve
-
Since:
-
1.2
subdivide
public static void subdivide(CubicCurve2D src,
CubicCurve2D left,
CubicCurve2D right)
-
Subdivides the cubic curve specified by the src parameter and stores the resulting two subdivided curves into the left and right curve parameters. Either or both of the left and right objects may be the same as the src object or null.
-
-
-
Parameters:
-
src - the cubic curve to be subdivided
-
left - the cubic curve object for storing the left or first half of the subdivided curve
-
right - the cubic curve object for storing the right or second half of the subdivided curve
-
Since:
-
1.2
subdivide
public static void subdivide(double[] src,
int srcoff,
double[] left,
int leftoff,
double[] right,
int rightoff)
-
Subdivides the cubic curve specified by the coordinates stored in the src array at indices srcoff through (srcoff + 7) and stores the resulting two subdivided curves into the two result arrays at the corresponding indices. Either or both of the left and right arrays may be null or a reference to the same array as the src array. Note that the last point in the first subdivided curve is the same as the first point in the second subdivided curve. Thus, it is possible to pass the same array for left and right and to use offsets, such as rightoff equals (leftoff + 6), in order to avoid allocating extra storage for this common point.
-
-
-
Parameters:
-
src - the array holding the coordinates for the source curve
-
srcoff - the offset into the array of the beginning of the the 6 source coordinates
-
left - the array for storing the coordinates for the first half of the subdivided curve
-
leftoff - the offset into the array of the beginning of the the 6 left coordinates
-
right - the array for storing the coordinates for the second half of the subdivided curve
-
rightoff - the offset into the array of the beginning of the the 6 right coordinates
-
Since:
-
1.2
solveCubic
public static int solveCubic(double[] eqn)
-
Solves the cubic whose coefficients are in the eqn array and places the non-complex roots back into the same array, returning the number of roots. The solved cubic is represented by the equation:
eqn = {c, b, a, d}
dx^3 + ax^2 + bx + c = 0
A return value of -1 is used to distinguish a constant equation that might be always 0 or never 0 from an equation that has no zeroes.
-
-
-
Parameters:
-
eqn - an array containing coefficients for a cubic
-
Returns:
-
the number of roots, or -1 if the equation is a constant.
-
Since:
-
1.2
solveCubic
public static int solveCubic(double[] eqn,
double[] res)
-
Solve the cubic whose coefficients are in the eqn array and place the non-complex roots into the res array, returning the number of roots. The cubic solved is represented by the equation: eqn = {c, b, a, d} dx^3 + ax^2 + bx + c = 0 A return value of -1 is used to distinguish a constant equation, which may be always 0 or never 0, from an equation which has no zeroes.
-
-
-
Parameters:
-
eqn - the specified array of coefficients to use to solve the cubic equation
-
res - the array that contains the non-complex roots resulting from the solution of the cubic equation
-
Returns:
-
the number of roots, or -1 if the equation is a constant
-
Since:
-
1.3
contains
public boolean contains(double x,
double y)
-
Tests if
the
a
specified
coordinates are
coordinate is
inside the boundary of the
Shape.
shape.
-
-
Specified by:
-
contains
in interface
Shape
-
-
Parameters:
-
x
x, y
- the specified
X
coordinate to be tested -
y - the specified Y coordinate to be tested
-
Returns:
-
true if the specified coordinates are inside the Shape boundary; false otherwise.
-
Since:
-
1.2
true if the coordinate is inside the boundary of the shape; false otherwise.
contains
public boolean contains(Point2D p)
-
Tests if a specified
Point2D
Point2D
is inside the boundary of the
Shape.
shape.
-
-
Specified by:
-
contains
in interface
Shape
-
-
Parameters:
-
p - the specified Point2D to be tested
-
Returns:
-
true if the
specified Point2D
p
is inside the boundary of the
Shape;
shape;
false otherwise. -
Since:
-
1.2
intersects
public boolean intersects(double x,
double y,
double w,
double 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.
Tests if the shape intersects the interior of a specified set of rectangular coordinates.
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.
-
-
Specified by:
-
intersects
in interface
Shape
-
-
Parameters:
-
x
x, y
- the
X coordinate
coordinates
of the
upper-left
upper left
corner of the specified rectangular area -
y - the Y coordinate of the upper-left corner of the specified rectangular area
-
w - the width of the specified rectangular area
-
h - the height of the specified rectangular area
-
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.
true if the shape intersects the interior of the specified rectangular area; false otherwise.
-
Since:
-
1.2
-
See Also:
-
Area
intersects
public boolean intersects(Rectangle2D r)
-
Tests if the interior of the Shape intersects the interior of a specified Rectangle2D. The Shape.intersects() method allows a Shape implementation to conservatively return true when:
-
there is a high probability that the Rectangle2D 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 Rectangle2D 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.
Tests if the shape intersects the interior of a specified Rectangle2D.
-
-
Specified by:
-
intersects
in interface
Shape
-
-
Parameters:
-
r - the specified Rectangle2D
to be tested
-
Returns:
-
true if the interior of the Shape and the interior of the specified Rectangle2D intersect, or are both highly likely to intersect and intersection calculations would be too expensive to perform; false otherwise.
true if the shape intersects the interior of the specified Rectangle2D; false otherwise.
-
Since:
-
1.2
-
See Also:
-
Shape.intersects(double, double, double, double)
contains
public boolean contains(double x,
double y,
double w,
double 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 rectanglar area to be considered contained within the Shape.
Tests if the interior of the shape entirely contains the specified set of rectangular coordinates.
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.
-
-
Specified by:
-
contains
in interface
Shape
-
-
Parameters:
-
x
x, y
- the
X coordinate
coordinates
of the
upper-left
upper left
corner of the specified rectangular
area
shape
-
y
w
- the
Y coordinate
width
of the
upper-left corner of the
specified rectangular
area
shape
-
w - the width of the specified rectangular area
-
h - the height of the specified rectangular
area
shape
-
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.
true if the shape entirely contains the specified set of rectangular coordinates; false otherwise.
-
Since:
-
1.2
-
See Also:
-
Area
,
Shape.intersects(double, double, double, double)
contains
public boolean contains(Rectangle2D r)
-
Tests if the interior of the Shape entirely contains the specified Rectangle2D. 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 Rectangle2D are prohibitively expensive.
This means that for some Shapes this method might return false even though the Shape contains the Rectangle2D. The
Area
class performs more accurate geometric computations than most Shape objects and therefore can be used if a more precise answer is required.
Tests if the interior of the shape entirely contains the specified Rectangle2D.
-
-
Specified by:
-
contains
in interface
Shape
-
-
Parameters:
-
r -
The
the
specified Rectangle2D
to be tested
-
Returns:
-
true if the interior of the Shape entirely contains the Rectangle2D; false otherwise or, if the Shape contains the Rectangle2D and the intersects method returns true and the containment calculations would be too expensive to perform.
true if the shape entirely contains the specified Rectangle2D; false otherwise.
-
Since:
-
1.2
-
See Also:
-
Shape.contains(double, double, double, double)
getBounds
public Rectangle getBounds()
-
Returns an integer
Rectangle
that completely encloses the Shape. Note that there is no guarantee that the returned Rectangle is the smallest bounding box that encloses the Shape, only that the Shape lies entirely within the indicated Rectangle. The returned Rectangle might also fail to completely enclose the Shape if the Shape overflows the limited range of the integer data type. The getBounds2D method generally returns a tighter bounding box due to its greater flexibility in representation.
Returns the bounding box of the shape.
-
-
Specified by:
-
getBounds
in interface
Shape
-
-
Returns:
-
an integer Rectangle that completely encloses the Shape.
a
Rectangle
that is the bounding box of the shape.
-
Since:
-
1.2
-
See Also:
-
Shape.getBounds2D()
getPathIterator
public PathIterator getPathIterator(AffineTransform at)
-
Returns an iteration object that defines the boundary of the shape. The iterator for this class is not multi-threaded safe, which means that this CubicCurve2D class does not guarantee that modifications to the geometry of this CubicCurve2D object do not affect any iterations of that geometry that are already in process.
-
-
Specified by:
-
getPathIterator
in interface
Shape
-
-
Parameters:
-
at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired
-
Returns:
-
the PathIterator object that returns the geometry of the outline of this CubicCurve2D, one segment at a time.
-
Since:
-
1.2
getPathIterator
public PathIterator getPathIterator(AffineTransform at,
double flatness)
-
Return an iteration object that defines the boundary of the flattened shape. The iterator for this class is not multi-threaded safe, which means that this CubicCurve2D class does not guarantee that modifications to the geometry of this CubicCurve2D object do not affect any iterations of that geometry that are already in process.
-
-
Specified by:
-
getPathIterator
in interface
Shape
-
-
Parameters:
-
at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired
-
flatness - the maximum amount that the control points for a given curve can vary from colinear before a subdivided curve is replaced by a straight line connecting the
end points
endpoints
-
Returns:
-
the PathIterator object that returns the geometry of the outline of this CubicCurve2D, one segment at a time.
-
Since:
-
1.2
clone
public Object clone()
-
Creates a new object of the same class as this object.
-
-
Overrides:
-
clone
in class
Object
-
-
Returns:
-
a clone of this instance.
-
Throws:
-
OutOfMemoryError
- if there is not enough memory.
-
Since:
-
1.2
-
See Also:
-
Cloneable