Jcg.geometry

Class PointCloud_2

java.lang.Object

Jcg.geometry.PointCloud<Point_2>

Jcg.geometry.PointCloud_2

Direct Known Subclasses:

PolyLine_2

public class PointCloud_2
extends PointCloud<Point_2>

Class representing a collection of points (in 2D)

Version:

dec 2012

Author:

Luca Castelli Aleardi, Ecole Polytechnique (INF562)

Constructor Summary

Constructors

Constructor and Description
PointCloud_2() Create a new empty point cloud
PointCloud_2(java.util.ArrayList<Point_2> points) Create a new point cloud (a copy) from a collection of points
PointCloud_2(int n) Create a point cloud of size n

Method Summary

Modifier and Type	Method and Description
Point_2[]	boundingBox() Compute the bounding box (enclosing all points)
Point_2	max(int d) Return the point with greatest coordinate value (in direction d)
Point_2	min(int d) Return the point with smallest coordinate value (in direction d)
static PointCloud_2	pointsInCircle(int n) Generate points inside a circle at random

Methods inherited from class Jcg.geometry.PointCloud

add, dimension, listOfPoints, remove, size

Methods inherited from class java.lang.Object

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

Constructor Detail

PointCloud_2

public PointCloud_2()

Create a new empty point cloud

PointCloud_2

public PointCloud_2(int n)

Create a point cloud of size n

Parameters:

n - number of points

PointCloud_2

public PointCloud_2(java.util.ArrayList<Point_2> points)

Create a new point cloud (a copy) from a collection of points

Parameters:

a - list of points (stored as an ArrayList)

Method Detail

boundingBox

public Point_2[] boundingBox()

Compute the bounding box (enclosing all points)

Specified by:

boundingBox in class PointCloud<Point_2>

Returns:

Point_2[] the array containing the min and max bounds

max

public Point_2 max(int d)

Return the point with greatest coordinate value (in direction d)

Specified by:

max in class PointCloud<Point_2>

Parameters:

d - dimension (0 or 1, corresponding to x or y axis)

Returns:

Point_2 the greatest point (with greatest d-coordinate)

min

public Point_2 min(int d)

Return the point with smallest coordinate value (in direction d)

Specified by:

min in class PointCloud<Point_2>

Parameters:

d - dimension (0 or 1, corresponding to x or y axis)

Returns:

Point_2 the smallest point (with smallest d-coordinate)

pointsInCircle

public static PointCloud_2 pointsInCircle(int n)

Generate points inside a circle at random

Parameters:

n - the number of points