global proc make_line (int $d)
{
	// clear the scene of any extra items....
	select -all;
	delete;
	
	vector $np1 = <<0,0,0>>;
	vector $np2 = <<2,1,0>>;
	vector $np3 = <<4,2,0>>;
	vector $np4 = <<6,3,0>>;
	vector $np5 = <<8,4,0>>;
	vector $np6 = <<10,5,0>>;

	string $makeline = "curve -d $d -p "+$np1+" -p "+$np2+" -p "+$np3+" -p "+$np4+" -p "+$np5+" -p "+$np6 ;
	eval $makeline;

};

make_line 3;