Jcg.geometry

Interface Point_

All Superinterfaces:

java.lang.Comparable<Point_>

All Known Implementing Classes:

Point_2, Point_3, Point_d

public interface Point_
extends java.lang.Comparable<Point_>

An interface defining primivites and operations on points in euclidean space

Author:

Luca Castelli Aleardi (INF555, 2010)

Method Summary

Modifier and Type	Method and Description
void	barycenter(Point_[] points) Set the current point as the barycenter of an array of points
int	compareCartesian(Point_ o, int i) Perform the comparison between the i-th coordinate of two points
int	dimension() Return the dimension of the space
java.lang.Number	getCartesian(int i) return the i-th cartesian coordinate of the point
void	linearCombination(Point_[] points, java.lang.Number[] coefficients) Set the current point a linear combination of an array of points.
Vector_	minus(Point_ p) Return the vector (p-q), where q is the current point
void	setCartesian(int i, java.lang.Number x) set the i-th cartesian coordinate
void	setOrigin() set the coordinates of the origin
java.lang.Number	squareDistance(Point_ p) Return the square distance ||p-q||^2, where q is the current point
java.lang.String	toString() Return a string (representation of the point)
void	translateOf(Vector_ v) Translate the current point according to a vector v

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

getCartesian

java.lang.Number getCartesian(int i)

return the i-th cartesian coordinate of the point

setCartesian

void setCartesian(int i,
                  java.lang.Number x)

set the i-th cartesian coordinate

setOrigin

void setOrigin()

set the coordinates of the origin

translateOf

void translateOf(Vector_ v)

Translate the current point according to a vector v

minus

Vector_ minus(Point_ p)

Return the vector (p-q), where q is the current point

squareDistance

java.lang.Number squareDistance(Point_ p)

Return the square distance ||p-q||^2, where q is the current point

barycenter

void barycenter(Point_[] points)

Set the current point as the barycenter of an array of points

linearCombination

void linearCombination(Point_[] points,
                       java.lang.Number[] coefficients)

Set the current point a linear combination of an array of points. Coefficients must sum to 1

dimension

int dimension()

Return the dimension of the space

toString

java.lang.String toString()

Return a string (representation of the point)

Overrides:

toString in class java.lang.Object

compareCartesian

int compareCartesian(Point_ o,
                     int i)

Perform the comparison between the i-th coordinate of two points