line.java

Cubic Spline Interpolation

import java.awt.*;

public class Line
  implements Drawable
{
  public String name;
  public Dot p0, p1;
  public Color color;

  public Line( String name, Dot p0, Dot p1, Color color )
  {
    this.name = name;
    this.p0 = p0;
    this.p1 = p1;
    this.color = color;
  }

  public void paint( Graphics g )
  {
    g.setColor( color );
    g.drawLine( p0.getX(), p0.getY(), p1.getX(), p1.getY() );
  }

  public int getX()
  {
    return ( p0.getX() + p1.getX() ) / 2;
  }
  public int getY()
  {
    return ( p0.getY() + p1.getY() ) / 2;
  }
}