Point2

java.lang.Object
- org.graphstream.ui.geom.Point2

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Point3
```
public class Point2
extends java.lang.Object
implements java.io.Serializable
```
2D point. A Point2 is a 2D location in an affine space described by three values along the X, and Y axes. This differs from the Vector3 and Vector4 classes in that it is only 2D and has no vector arithmetic bound to it (to points cannot be added, this would have no mathematical meaning).

Since:

20001121 creation

Version:

0.1

Author:

Antoine Dutot

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

static Point2 NULL_POINT2
Specific point at (0,0).

double x
X axis value.

double y
Y axis value.

Fields
Modifier and Type	Field and Description
`static Point2`	`NULL_POINT2` Specific point at (0,0).
`double`	`x` X axis value.
`double`	`y` Y axis value.

Constructor Summary

Constructors
Constructor and Description

Point2()
New 2D point at (0,0).

Point2(double x, double y)
New 2D point at (x,y).

Point2(Point2 other)
New copy of other.

Constructors
Constructor and Description
`Point2()` New 2D point at (0,0).
`Point2(double x, double y)` New 2D point at (x,y).
`Point2(Point2 other)` New copy of other.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`copy(Point2 other)` Make this a copy of other.
`double`	`distance(Point2 other)` Distance between this and `other`.
`boolean`	`equals(java.lang.Object o)`
`int`	`hashCode()`
`Point2`	`interpolate(Point2 other, double factor)` Create a new point linear interpolation of this and `other`.
`boolean`	`isZero()` Are all components to zero?.
`void`	`make(double x, double y)` New 2D point at (x,y).
`void`	`move(double dx, double dy)` Move of given vector (dx,dy).
`void`	`move(Point2 p)` Move of given point `p`.
`void`	`moveTo(double x, double y)` Move to absolute position (x,y).
`void`	`moveX(double dx)` Move horizontally of dx.
`void`	`moveY(double dy)` Move vertically of dy.
`void`	`scale(double sx, double sy)` Scale of factor (sx,sy).
`void`	`scale(Point2 s)` Scale by factor s.
`void`	`set(double x, double y)` Like #moveTo().
`void`	`setX(double x)` Change only abscissa at absolute coordinate x.
`void`	`setY(double y)` Change only ordinate at absolute coordinate y.
`void`	`swap(Point2 other)` Exchange the values of this and other.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - x
```
public double x
```
    X axis value.
  - y
```
public double y
```
    Y axis value.
  - NULL_POINT2
```
public static final Point2 NULL_POINT2
```
    Specific point at (0,0).
- Constructor Detail
  - Point2
```
public Point2()
```
    New 2D point at (0,0).
  - Point2
```
public Point2(double x,
              double y)
```
    New 2D point at (x,y).
  - Point2
```
public Point2(Point2 other)
```
    New copy of other.
- Method Detail
  - make
```
public void make(double x,
                 double y)
```
    New 2D point at (x,y).
  - isZero
```
public boolean isZero()
```
    Are all components to zero?.
  - interpolate
```
public Point2 interpolate(Point2 other,
                          double factor)
```
    Create a new point linear interpolation of this and other. The new point is located between this and other if factor is between 0 and 1 (0 yields this point, 1 yields the other point).
  - distance
```
public double distance(Point2 other)
```
    Distance between this and other.
  - copy
```
public void copy(Point2 other)
```
    Make this a copy of other.
  - set
```
public void set(double x,
                double y)
```
    Like #moveTo().
  - moveTo
```
public void moveTo(double x,
                   double y)
```
    Move to absolute position (x,y).
  - move
```
public void move(double dx,
                 double dy)
```
    Move of given vector (dx,dy).
  - move
```
public void move(Point2 p)
```
    Move of given point p.
  - moveX
```
public void moveX(double dx)
```
    Move horizontally of dx.
  - moveY
```
public void moveY(double dy)
```
    Move vertically of dy.
  - scale
```
public void scale(double sx,
                  double sy)
```
    Scale of factor (sx,sy).
  - scale
```
public void scale(Point2 s)
```
    Scale by factor s.
  - setX
```
public void setX(double x)
```
    Change only abscissa at absolute coordinate x.
  - setY
```
public void setY(double y)
```
    Change only ordinate at absolute coordinate y.
  - swap
```
public void swap(Point2 other)
```
    Exchange the values of this and other.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object

Class Point2

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

x

y

NULL_POINT2

Constructor Detail

Point2

Point2

Point2

Method Detail

make

isZero

interpolate

distance

copy

set

moveTo

move

move

moveX

moveY

scale

scale

setX

setY

swap

toString

equals

hashCode