org.scijava.vecmath

## Class Point2d

• All Implemented Interfaces:
Serializable, Cloneable

```public class Point2d
extends Tuple2d
implements Serializable```
A 2 element point that is represented by double precision floating point x,y coordinates.
See Also:
Serialized Form

• ### Fields inherited from class org.scijava.vecmath.Tuple2d

`x, y`
• ### Constructor Summary

Constructors
Constructor and Description
`Point2d()`
Constructs and initializes a Point2d to (0,0).
`Point2d(double[] p)`
Constructs and initializes a Point2d from the specified array.
```Point2d(double x, double y)```
Constructs and initializes a Point2d from the specified xy coordinates.
`Point2d(Point2d p1)`
Constructs and initializes a Point2d from the specified Point2d.
`Point2d(Point2f p1)`
Constructs and initializes a Point2d from the specified Point2f.
`Point2d(Tuple2d t1)`
Constructs and initializes a Point2d from the specified Tuple2d.
`Point2d(Tuple2f t1)`
Constructs and initializes a Point2d from the specified Tuple2f.
• ### Method Summary

All Methods
Modifier and Type Method and Description
`double` `distance(Point2d p1)`
Computes the distance between this point and point p1.
`double` `distanceL1(Point2d p1)`
Computes the L-1 (Manhattan) distance between this point and point p1.
`double` `distanceLinf(Point2d p1)`
Computes the L-infinite distance between this point and point p1.
`double` `distanceSquared(Point2d p1)`
Computes the square of the distance between this point and point p1.
• ### Methods inherited from class org.scijava.vecmath.Tuple2d

`absolute, absolute, add, add, clamp, clamp, clampMax, clampMax, clampMin, clampMin, clone, epsilonEquals, equals, equals, get, getX, getY, hashCode, interpolate, interpolate, negate, negate, scale, scale, scaleAdd, scaleAdd, set, set, set, set, setX, setY, sub, sub, toString`
• ### Methods inherited from class java.lang.Object

`finalize, getClass, notify, notifyAll, wait, wait, wait`
• ### Constructor Detail

• #### Point2d

```public Point2d(double x,
double y)```
Constructs and initializes a Point2d from the specified xy coordinates.
Parameters:
`x` - the x coordinate
`y` - the y coordinate
• #### Point2d

`public Point2d(double[] p)`
Constructs and initializes a Point2d from the specified array.
Parameters:
`p` - the array of length 2 containing xy in order
• #### Point2d

`public Point2d(Point2d p1)`
Constructs and initializes a Point2d from the specified Point2d.
Parameters:
`p1` - the Point2d containing the initialization x y data
• #### Point2d

`public Point2d(Point2f p1)`
Constructs and initializes a Point2d from the specified Point2f.
Parameters:
`p1` - the Point2f containing the initialization x y data
• #### Point2d

`public Point2d(Tuple2d t1)`
Constructs and initializes a Point2d from the specified Tuple2d.
Parameters:
`t1` - the Tuple2d containing the initialization x y data
• #### Point2d

`public Point2d(Tuple2f t1)`
Constructs and initializes a Point2d from the specified Tuple2f.
Parameters:
`t1` - the Tuple2f containing the initialization x y data
• #### Point2d

`public Point2d()`
Constructs and initializes a Point2d to (0,0).
• ### Method Detail

• #### distanceSquared

`public final double distanceSquared(Point2d p1)`
Computes the square of the distance between this point and point p1.
Parameters:
`p1` - the other point
• #### distance

`public final double distance(Point2d p1)`
Computes the distance between this point and point p1.
Parameters:
`p1` - the other point
• #### distanceL1

`public final double distanceL1(Point2d p1)`
Computes the L-1 (Manhattan) distance between this point and point p1. The L-1 distance is equal to abs(x1-x2) + abs(y1-y2).
Parameters:
`p1` - the other point
• #### distanceLinf

`public final double distanceLinf(Point2d p1)`
Computes the L-infinite distance between this point and point p1. The L-infinite distance is equal to MAX[abs(x1-x2), abs(y1-y2)].
Parameters:
`p1` - the other point

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