datapoint.java

来自「Clustering demo.very good」· Java 代码 · 共 47 行

public class DataPoint{
    public double mX,mY;
    private Cluster mCluster;
    private double mEuDt;

    public DataPoint(){}

    public DataPoint(double x, double y){
        this.mX = x;
        this.mY = y;
        this.mCluster = null;
    }

    public void setCluster(Cluster cluster) {
        this.mCluster = cluster;
        calcEuclideanDistance();
    }

    public void setCluster1(Cluster cluster) {
        this.mCluster = cluster;
    }

    public void calcEuclideanDistance(){ 
    //called when DP is added to a cluster or when a Centroid is recalculated.
        mEuDt = Math.sqrt(Math.pow((mX - mCluster.getCentroid().getCx()),2) + Math.pow((mY - mCluster.getCentroid().getCy()), 2));
    }

    public double testEuclideanDistance(Centroid c){
        return Math.sqrt(Math.pow((mX - c.getCx()), 2) + Math.pow((mY - c.getCy()), 2));
    }

    public double getX() {
        return mX;
    }

    public double getY() {
        return mY;
    }

    public Cluster getCluster() {
        return mCluster;
    }

    public double getCurrentEuDt() {
        return mEuDt;
    }
}