ur_rna.Utilities.geom

Class PointMath

java.lang.Object

ur_rna.Utilities.geom.PointMath

public class PointMath
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
PointMath()

Method Summary

Modifier and Type	Method and Description
static java.awt.geom.Point2D	diff(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
static java.awt.geom.Point2D	diff(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2, java.awt.geom.Point2D result) sets result to p1 - p2.
static double	dist(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
static double	distSqr(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
static double	magnitude(java.awt.geom.Point2D p) Returns the absolute length of the vector pointing to p
static java.awt.geom.Point2D	midpoint(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
static java.awt.geom.Point2D	midpoint(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2, java.awt.geom.Point2D result) Returns the mid-point between two points.
static java.awt.geom.Point2D	negate(java.awt.geom.Point2D p) sets result to -p.
static java.awt.geom.Point2D	negative(java.awt.geom.Point2D p)
static java.awt.geom.Point2D	negative(java.awt.geom.Point2D p, java.awt.geom.Point2D result) sets result to -p.
static java.awt.geom.Point2D	normalize(java.awt.geom.Point2D p) Assumes p represents a vector and mormalizes it to a unit vector -- i.e.
static java.awt.geom.Point2D	normalized(java.awt.geom.Point2D p)
static java.awt.geom.Point2D	normalized(java.awt.geom.Point2D p, java.awt.geom.Point2D result) Assumes p is a vector and sets result to the corresponding normalized unit vector (i.e.
static java.awt.geom.Point2D	scale(java.awt.geom.Point2D p, double factor) scales p by the given factor.
static java.awt.geom.Point2D	scale(java.awt.geom.Point2D p, double sx, double sy)
static java.awt.geom.Point2D	scaled(java.awt.geom.Point2D p, double scale)
static java.awt.geom.Point2D	scaled(java.awt.geom.Point2D p, double sx, double sy)
static java.awt.geom.Point2D	scaled(java.awt.geom.Point2D p, double sx, double sy, java.awt.geom.Point2D result)
static java.awt.geom.Point2D	scaled(java.awt.geom.Point2D p, double scale, java.awt.geom.Point2D result) sets result to scale * p.
static java.awt.geom.Point2D	sum(java.awt.geom.Point2D p, double dx, double dy)
static java.awt.geom.Point2D	sum(java.awt.geom.Point2D p, double dx, double dy, java.awt.geom.Point2D result) sets result to (p.x + dx, p.y + dy) If result is null, a new Point2D (cloned from p1) will be returned.
static java.awt.geom.Point2D	sum(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
static java.awt.geom.Point2D	sum(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2, java.awt.geom.Point2D result) sets result to p1 + p2.
static java.awt.geom.Point2D	translate(java.awt.geom.Point2D p, double dx, double dy) ranslates p by (dx, dy).
static java.awt.geom.Point2D	translate(java.awt.geom.Point2D p, java.awt.geom.Point2D delta) translates p by (p.x, p.y).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PointMath

public PointMath()

Method Detail

diff

public static java.awt.geom.Point2D diff(java.awt.geom.Point2D p1,
                                         java.awt.geom.Point2D p2)

diff

public static java.awt.geom.Point2D diff(java.awt.geom.Point2D p1,
                                         java.awt.geom.Point2D p2,
                                         java.awt.geom.Point2D result)

sets result to p1 - p2. If result is null, a new Point2D (cloned from p1) will be returned.

dist

public static double dist(java.awt.geom.Point2D p1,
                          java.awt.geom.Point2D p2)

distSqr

public static double distSqr(java.awt.geom.Point2D p1,
                             java.awt.geom.Point2D p2)

magnitude

public static double magnitude(java.awt.geom.Point2D p)

Returns the absolute length of the vector pointing to p

midpoint

public static java.awt.geom.Point2D midpoint(java.awt.geom.Point2D p1,
                                             java.awt.geom.Point2D p2)

midpoint

public static java.awt.geom.Point2D midpoint(java.awt.geom.Point2D p1,
                                             java.awt.geom.Point2D p2,
                                             java.awt.geom.Point2D result)

Returns the mid-point between two points.

negate

public static java.awt.geom.Point2D negate(java.awt.geom.Point2D p)

sets result to -p. Returns p itself (for chaining).

negative

public static java.awt.geom.Point2D negative(java.awt.geom.Point2D p)

negative

public static java.awt.geom.Point2D negative(java.awt.geom.Point2D p,
                                             java.awt.geom.Point2D result)

sets result to -p. If result is null, a new Point2D (cloned from p) will be returned.

normalize

public static java.awt.geom.Point2D normalize(java.awt.geom.Point2D p)

Assumes p represents a vector and mormalizes it to a unit vector -- i.e. divides x and y by the magnitude of vector (x, y).

normalized

public static java.awt.geom.Point2D normalized(java.awt.geom.Point2D p)

normalized

public static java.awt.geom.Point2D normalized(java.awt.geom.Point2D p,
                                               java.awt.geom.Point2D result)

Assumes p is a vector and sets result to the corresponding normalized unit vector (i.e. divides x and y by the magnitude of vector (x, y). If result is null, a new Point2D (cloned from p) will be returned.

scale

public static java.awt.geom.Point2D scale(java.awt.geom.Point2D p,
                                          double factor)

scales p by the given factor. Returns p itself (for chaining).

scale

public static java.awt.geom.Point2D scale(java.awt.geom.Point2D p,
                                          double sx,
                                          double sy)

scaled

public static java.awt.geom.Point2D scaled(java.awt.geom.Point2D p,
                                           double scale)

scaled

public static java.awt.geom.Point2D scaled(java.awt.geom.Point2D p,
                                           double sx,
                                           double sy)

scaled

public static java.awt.geom.Point2D scaled(java.awt.geom.Point2D p,
                                           double sx,
                                           double sy,
                                           java.awt.geom.Point2D result)

scaled

public static java.awt.geom.Point2D scaled(java.awt.geom.Point2D p,
                                           double scale,
                                           java.awt.geom.Point2D result)

sets result to scale * p. If result is null, a new Point2D (cloned from p) will be returned.

sum

public static java.awt.geom.Point2D sum(java.awt.geom.Point2D p,
                                        double dx,
                                        double dy)

sum

public static java.awt.geom.Point2D sum(java.awt.geom.Point2D p,
                                        double dx,
                                        double dy,
                                        java.awt.geom.Point2D result)

sets result to (p.x + dx, p.y + dy) If result is null, a new Point2D (cloned from p1) will be returned.

sum

public static java.awt.geom.Point2D sum(java.awt.geom.Point2D p1,
                                        java.awt.geom.Point2D p2)

sum

public static java.awt.geom.Point2D sum(java.awt.geom.Point2D p1,
                                        java.awt.geom.Point2D p2,
                                        java.awt.geom.Point2D result)

sets result to p1 + p2. If result is null, a new Point2D (cloned from p1) will be returned.

translate

public static java.awt.geom.Point2D translate(java.awt.geom.Point2D p,
                                              double dx,
                                              double dy)

ranslates p by (dx, dy). Returns p itself (for chaining).

translate

public static java.awt.geom.Point2D translate(java.awt.geom.Point2D p,
                                              java.awt.geom.Point2D delta)

translates p by (p.x, p.y). Returns p itself (for chaining).