d3.layout.line = function(){

  "use strict";

    var exports = {};
	var d3 = window.d3;

	var pts = [];
	var width = 100,
		offsetX = 0,
		offsetY = 0;
		
	function line(data) {
		return line.points(data);
	}

	line.points = function(data) {
		if (!arguments.length) return pts;
		var qty = data.length;
		var s = d3.scale.linear().domain([-1, qty]).range([0, width]);
		var i = -1;
		while (++i < qty) {
			var d = data[i]; // if not object, make it so
			d.x = s(i) + offsetX;
			d.y = offsetY;
			d.transform = "translate(" + d.x + " " + d.y + ")";
			data[i] = d;
		}
		return data;
	};

	line.width = function(number) {
		if (!arguments.length) return width;
		width = number;
		return line;
	};

	line.offsetX = function(number) {
		if (!arguments.length) return offsetX;
		offsetX = number;
		return line;
	};

	line.offsetY = function(number) {
		if (!arguments.length) return offsetY;
		offsetY = number;
		return line;
	};

	//		transform: function(d) { return "translate(" + d.x + " " + d.y + ") rotate(" + d.r + ")"; }

	// ---------------------
	//  Public Interface
	// ---------------------
	return line;

};