module A(float len) extends Sphere(0.1)
{
	{setShader(GREEN);}
}
DatasetRef diagram = new DatasetRef("plot");

protected void init ()
[
	Axiom ==> A(1);
	{
	diagram.setTitle("My fancy plot");

	 diagram.clear();
     diagram.setColumnKey(0,"max(x)").setColumnKey(1,"max(y)").setColumnKey(2,"max(z)");
	 chart(diagram, XY_PLOT);
     
	}
]

public void run ()

[
	A(x) ==> F(x) [RU(30) RH(90) A(x*0.8)] [RU(-30) RH(90) A(x*0.8)];
	{
		diagram.addRow().set(0,max(location((*A*)).x)).set(1,max(location((*A*)).y)).set(2,max(location((*A*)).z));
		
	}	
]