def pseudo_angle_for_edge(point0, point1)
	    delta = Point[point1.x.to_f, point1.y.to_f] - Point[point0.x.to_f, point0.y.to_f]
	    if delta.x >= 0
		if delta.y >= 0
		    quadrant_one_psuedo_angle(delta.x, delta.y)
		else
		    1 + quadrant_one_psuedo_angle(delta.y.abs, delta.x)
		end
	    else
		if delta.y >= 0
		    3 + quadrant_one_psuedo_angle(delta.y, delta.x.abs)
		else
		    2 + quadrant_one_psuedo_angle(delta.x.abs, delta.y.abs)
		end
	    end
	end
def pseudo_angle_for_edge(point0, point1)
	    delta = Point[point1.x.to_f, point1.y.to_f] - Point[point0.x.to_f, point0.y.to_f]
	    if delta.x >= 0
		if delta.y >= 0
		    quadrant_one_psuedo_angle(delta.x, delta.y)
		else
		    1 + quadrant_one_psuedo_angle(delta.y.abs, delta.x)
		end
	    else
		if delta.y >= 0
		    3 + quadrant_one_psuedo_angle(delta.y, delta.x.abs)
		else
		    2 + quadrant_one_psuedo_angle(delta.x.abs, delta.y.abs)
		end
	    end
	end
Return a number that increases with the slope of the {Edge}
 @return [Number]  A number in the range [0,4)