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Préférences
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JavaTM 2 Platform Std. Ed. v1.6.0
java.awt.geom
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Nested Class Summary | |
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static class |
Point2D.Double
The Double class defines a point specified in
double precision. |
static class |
Point2D.Float
The Float class defines a point specified in float
precision. |
Constructor Summary | |
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protected |
Point2D()
This is an abstract class that cannot be instantiated directly. |
Method Summary | |
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Object |
clone()
Creates a new object of the same class and with the same contents as this object. |
double |
distance(double px,
double py)
Returns the distance from this Point2D to
a specified point. |
static double |
distance(double x1,
double y1,
double x2,
double y2)
Returns the distance between two points. |
double |
distance(Point2D pt)
Returns the distance from this Point2D to a
specified Point2D . |
double |
distanceSq(double px,
double py)
Returns the square of the distance from this Point2D to a specified point. |
static double |
distanceSq(double x1,
double y1,
double x2,
double y2)
Returns the square of the distance between two points. |
double |
distanceSq(Point2D pt)
Returns the square of the distance from this Point2D to a specified Point2D . |
boolean |
equals(Object obj)
Determines whether or not two points are equal. |
abstract double |
getX()
Returns the X coordinate of this Point2D in
double precision. |
abstract double |
getY()
Returns the Y coordinate of this Point2D in
double precision. |
int |
hashCode()
Returns the hashcode for this Point2D . |
abstract void |
setLocation(double x,
double y)
Sets the location of this Point2D to the
specified double coordinates. |
void |
setLocation(Point2D p)
Sets the location of this Point2D to the same
coordinates as the specified Point2D object. |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected Point2D()
Point2D.Float
,
Point2D.Double
,
Point
Method Detail |
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public abstract double getX()
Point2D
in
double
precision.
Point2D
.public abstract double getY()
Point2D
in
double
precision.
Point2D
.public abstract void setLocation(double x, double y)
Point2D
to the
specified double
coordinates.
x
- the new X coordinate of this Point2D
y
- the new Y coordinate of this Point2D
public void setLocation(Point2D p)
Point2D
to the same
coordinates as the specified Point2D
object.
p
- the specified Point2D
to which to set
this Point2D
public static double distanceSq(double x1, double y1, double x2, double y2)
x1
- the X coordinate of the first specified pointy1
- the Y coordinate of the first specified pointx2
- the X coordinate of the second specified pointy2
- the Y coordinate of the second specified point
public static double distance(double x1, double y1, double x2, double y2)
x1
- the X coordinate of the first specified pointy1
- the Y coordinate of the first specified pointx2
- the X coordinate of the second specified pointy2
- the Y coordinate of the second specified point
public double distanceSq(double px, double py)
Point2D
to a specified point.
px
- the X coordinate of the specified point to be measured
against this Point2D
py
- the Y coordinate of the specified point to be measured
against this Point2D
Point2D
and the specified point.public double distanceSq(Point2D pt)
Point2D
to a specified Point2D
.
pt
- the specified point to be measured
against this Point2D
Point2D
to a specified Point2D
.public double distance(double px, double py)
Point2D
to
a specified point.
px
- the X coordinate of the specified point to be measured
against this Point2D
py
- the Y coordinate of the specified point to be measured
against this Point2D
Point2D
and a specified point.public double distance(Point2D pt)
Point2D
to a
specified Point2D
.
pt
- the specified point to be measured
against this Point2D
Point2D
and
the specified Point2D
.public Object clone()
OutOfMemoryError
- if there is not enough memory.Cloneable
public int hashCode()
Point2D
.
Point2D
.Object.equals(java.lang.Object)
,
Hashtable
public boolean equals(Object obj)
Point2D
are equal if the values of their
x
and y
member fields, representing
their position in the coordinate space, are the same.
obj
- an object to be compared with this Point2D
true
if the object to be compared is
an instance of Point2D
and has
the same values; false
otherwise.Object.hashCode()
,
Hashtable