org.xmlcml.euclid

Class Point2

java.lang.Object

org.xmlcml.euclid.Real2

org.xmlcml.euclid.Point2

All Implemented Interfaces:

EuclidConstants

public class Point2
extends Real2

2-dimensional point class PROBABLY OBSOLETE - WE USE Real2 instead Point2 represents a 2-dimensional point. It is one of a set of primitives which can be combined to create and manipulate complex 2-dimensional objects. Points can be transformed with rotation matrices or rotation-translation matrices (Transform2), can be calculated from other primitives or can be used to generate other primitives. Default point is 0.0, 0.0

Author:

Peter Murray-Rust, (C) P. Murray-Rust, 1996

Field Summary

Fields inherited from class org.xmlcml.euclid.Real2

x, y

Fields inherited from interface org.xmlcml.euclid.EuclidConstants

C_AMP, C_APOS, C_ATSIGN, C_BACKSLASH, C_BACKSPACE, C_CARET, C_COLON, C_COMMA, C_DEL, C_DOLLAR, C_EQUALS, C_FORMFEED, C_HASH, C_LANGLE, C_LBRAK, C_LCURLY, C_LSQUARE, C_MINUS, C_NBSP, C_NEWLINE, C_NL, C_PERCENT, C_PERIOD, C_PIPE, C_PLUS, C_POUND, C_QUERY, C_QUOT, C_RANGLE, C_RBRAK, C_RCURLY, C_RETURN, C_RSQUARE, C_SEMICOLON, C_SHRIEK, C_SLASH, C_SPACE, C_STAR, C_TAB, C_TILDE, C_UNDER, EPS, F_S, NONWHITEPUNC, NONWHITEPUNC0, NONWHITEPUNC0REGEX, ONE_THIRD, PUNC, S_AMP, S_APOS, S_ATSIGN, S_BACKSLASH, S_CARET, S_COLON, S_COMMA, S_DOLLAR, S_EMPTY, S_EQUALS, S_FORMFEED, S_HASH, S_LANGLE, S_LBRAK, S_LCURLY, S_LSQUARE, S_MINUS, S_NEWLINE, S_NL, S_PERCENT, S_PERIOD, S_PIPE, S_PLUS, S_POUND, S_QUERY, S_QUOT, S_RANGLE, S_RBRAK, S_RCURLY, S_RETURN, S_RSQUARE, S_SEMICOLON, S_SHRIEK, S_SLASH, S_SPACE, S_STAR, S_TAB, S_TILDE, S_UNDER, S_WHITEREGEX, TWO_THIRDS, U_S, WHITESPACE

Constructor Summary

Constructors

Constructor and Description
Point2() constructor.
Point2(double[] f) constructor from a double[] (or a RealArray)
Point2(double x, double y) formed from point components
Point2(Point2 p) copy constructor

Method Summary

Methods inherited from class org.xmlcml.euclid.Real2

addPolygonOnLine, clear, createFromString, dotProduct, elementAt, format, getAngle, getAngle, getCentroid, getDistance, getDistanceMatrix, getLength, getMidPoint, getSerialOfNearestPoint, getSquaredDistance, getTransformed, getUnitVector, getX, getXY, getY, isEqualTo, isEqualTo, isOrigin, isOrigin, makePoint, multiplyBy, multiplyEquals, negative, plus, plusEquals, setX, setY, sortAscending, sortDescending, subtract, swap, toString, transformBy

Methods inherited from class java.lang.Object

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

Constructor Detail

Point2

public Point2()

constructor.

Point2

public Point2(double x,
              double y)

formed from point components

Parameters:

x -

y -

Point2

public Point2(Point2 p)

copy constructor

Parameters:

p -

Point2

public Point2(double[] f)

constructor from a double[] (or a RealArray)

Parameters:

f -