// Metric.java
// by Scot Drysdale on 5/16/06

import java.awt.*;

// Provides a distance measure from a shape to a point.  
// Different subclasses will supply different measures.
public abstract class Metric {
	// Computes the distance from a shape to a point.
	public double distance(Shape s, Point p)
	{
		return distance(s,p.getX(), p.getY());
	}
	
	//	 Computes the distance from a shape to an (x,y) pair.
	public abstract double distance(Shape s, double x, double y);
}