The name is absent




Figure 1 : Le principe du diagramme espace-echelle de Furnas et Bederson (1995). Un objet defini en (a) dans
un plan
xy est representee en (b) a divers niveaux de grossissement en utilisant deux axes spatiaux uι et u2 et un
axe d’echelle v.





Figure 2. A gauche, le rectangle represente la vue courante sur cet objet. Au centre, cette vue conserve une taille
constante a tous les niveaux de grossissement, donnant ainsi sur l’objet une information (a droite) d’autant plus
detaillee mais en meme temps d’autant moins complete qu’on la fera monter sur l’axe de l’echelle (zoom avant,
vers le haut).

Cet outil de representation permet de comprendre de maniere intuitive les variations
pertinentes d’une tache donnde. Les Figures 3 et 4 montrent comment faire varier sdpardment
l’dchelle et la difficultd d’une tache de pointage (Guiard, 2001).



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