lavieri

/**
 *
 * @author Tomaz Lavieri
 */
public class GeometricVector {
    private final Point3D start;
    private final Point3D end;

    public GeometricVector(Point3D start, Point3D end) {
        this.start = start;
        this.end = end;
    }

    public double size() {
        double xPow2 = Math.pow(end.getX()-start.getX(), 2);
        double yPow2 = Math.pow(end.getY()-start.getY(), 2);
        double zPow2 = Math.pow(end.getZ()-start.getZ(), 2);
        return Math.sqrt(xPow2 + yPow2 + zPow2);
    }
}