[EN] This paper explores the particular way of drawing the architecture Le Corbusier: a synthesis of different graphic traditions acquired in his youth and which he was able to integrate coherently in a very personal style. Trying to define his way of drawing, William JR Curtis assimilated it to a system of shorthand notes and considered it equipped with an alchemical power. It is a fact that this way of drawing opened a fruitful approach to studying and generating architecture. This paper attempts to clarify one of his qualities: the ability to situate, putting into play the notion of horizon. As it is known, the concept took its precise form with the emergence of Renaissance perspective, but in the case of Le Corbusier it was reform...