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Class pmr.euclid.Int2Vector

java.lang.Object
   |
   +----java.util.Vector
           |
           +----pmr.euclid.EuclidVector
                   |
                   +----pmr.euclid.Int2Vector

public class Int2Vector

extends EuclidVector

Support is also given for the two component arrays as IntArrays

Default is an empty (Java) Vector;

Author:

(C) P. Murray-Rust, 1996

Int2Vector()

Int2Vector(int)

create a Vector with given number of points

Int2Vector(int, int[], int[])

from two parallel arrays of x, y - by REFERENCE

Int2Vector(Int2Vector)

copy constructor from Int2Vector COPIES pv

Int2Vector(int[])

Formed by feeding in an existing array to a 2xn matrix.

Int2Vector(IntArray)

constructor from IntArray - by REFERENCE

addElement(Int2)

getClosestPoint(Int2)

get the closest point (both ranges are assumed to have the same scales

getCoordinate(int, Choice2)

get a single coordinate value

getInt2(int)

get the i'th Int2

getPoint(Int2, int, int)

get the index of the first point within a box centered on p (i.e.

getRange(Choice2)

get range of one coordinate

getRange2()

get range of both coordinates

getXorY(Choice2)

get a single coordinate array - e.g.

getXY()

get the coordinate coordinate array as ints x,y,x,y, ...

makeString()

we are not allowed a toString() here, as Vector is a final class

multiplyBy(int)

multiply all coordinates be a given scalar (i.e.

plus(Int2)

add a Int2 to all elements of 'this'; MODIFIES 'this'

setElementAt(Int2, int)

sortAscending(Choice2)

sort ARRAY on X or Y coordinate; returns new array

sortDescending(Choice2)

sort ARRAY on X or Y coordinate; returns new array

sortXYAscending()

sort X and Y within each point; MODIFIES array

sortXYDescending()

sort X and Y within each point; MODIFIES array

subArray(IntSet)

create a NEW subset of the points; points are COPIED

subSet(Int2Range)

create a subset of the points within a box

subtract(Int2)

translate negatively; MODIFIES 'this'

swapXY()

swap all X and Y coordinates; MODIFIES array

translateBy(Int2)

translate by a vector, synonym for 'plus'; MODIFIES 'this'

  public Int2Vector()

  public Int2Vector(int size)

create a Vector with given number of points

  public Int2Vector(int flarray[]) throws InvalidArgumentException

Formed by feeding in an existing array to a 2xn matrix. THE COLUMN IS THE FASTEST MOVING INDEX, i.e. the matrix is filled as flarray(0,0, flarray(0,1). Primarily for compatibility with other apps

Throws: InvalidArgumentException

array must have even number of elements

  public Int2Vector(int n,
                    int x[],
                    int y[])

from two parallel arrays of x, y - by REFERENCE

  public Int2Vector(IntArray m) throws InvalidArgumentException

constructor from IntArray - by REFERENCE

Throws: InvalidArgumentException

array must have even number of elements

  public Int2Vector(Int2Vector pv)

copy constructor from Int2Vector COPIES pv

  public void addElement(Int2 p)

  public void setElementAt(Int2 v,
                           int i) throws ArrayIndexOutOfBoundsException

Throws: ArrayIndexOutOfBoundsException

v does not have an i'th element

  public IntRange getRange(Choice2 ax)

get range of one coordinate

  public Int2Range getRange2()

get range of both coordinates

  public Int2Vector subArray(IntSet is) throws BadSubscriptException

create a NEW subset of the points; points are COPIED

Throws: BadSubscriptException

an element of is is out of range of this

  public IntSet subSet(Int2Range r)

create a subset of the points within a box

  public int getClosestPoint(Int2 p)

get the closest point (both ranges are assumed to have the same scales

  public int getPoint(Int2 p,
                      int width,
                      int height)

get the index of the first point within a box centered on p (i.e. p+- width/2, height/2) or -1 if none

  public void translateBy(Int2 v)

translate by a vector, synonym for 'plus'; MODIFIES 'this'

  public void plus(Int2 p)

add a Int2 to all elements of 'this'; MODIFIES 'this'

  public void subtract(Int2 v)

translate negatively; MODIFIES 'this'

  public void multiplyBy(int f)

multiply all coordinates be a given scalar (i.e. expands scale)

  public Int2 getInt2(int i)

get the i'th Int2

  public IntArray getXY()

get the coordinate coordinate array as ints x,y,x,y, ...

  public int getCoordinate(int i,
                           Choice2 j)

get a single coordinate value

  public IntArray getXorY(Choice2 axis)

get a single coordinate array - e.g. all x-coordinates

  public void swapXY()

swap all X and Y coordinates; MODIFIES array

  public void sortXYAscending()

sort X and Y within each point; MODIFIES array

  public void sortXYDescending()

sort X and Y within each point; MODIFIES array

  public Int2Vector sortAscending(Choice2 ax)

sort ARRAY on X or Y coordinate; returns new array

  public Int2Vector sortDescending(Choice2 ax)

sort ARRAY on X or Y coordinate; returns new array

  public String makeString()

we are not allowed a toString() here, as Vector is a final class

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