HPoint.java

// Hyper-Point class supporting KDTree class

package org.codemap.kdtree;

class HPoint {

    protected double [] coord;

    protected HPoint(int n) {
	coord = new double [n];
    }

    protected HPoint(double [] x) {

	coord = new double[x.length];
	for (int i=0; i<x.length; ++i) coord[i] = x[i];
    }

    protected Object clone() {

	return new HPoint(coord);
    }

    protected boolean equals(HPoint p) {

	// seems faster than java.util.Arrays.equals(), which is not 
	// currently supported by Matlab anyway
	for (int i=0; i<coord.length; ++i)
	    if (coord[i] != p.coord[i])
		return false;

	return true;
    }

    protected static double sqrdist(HPoint x, HPoint y) {
	
	return EuclideanDistance.sqrdist(x.coord, y.coord);
    }
    


    public String toString() {
	String s = "";
	for (int i=0; i<coord.length; ++i) {
	    s = s + coord[i] + " ";
	}
	return s;
    }

}