usecolor -8 8 setxrange -5 6 setyrange 20 setxunit setCourierBold /affiche_serie { /le_y 6 def /le_x -8 def /i 0 def 6 { /fillstyle {les_couleurs i get cvx exec fill} def le_x le_y 1 sub le_x 2 add le_y frame* les_couleurs i get le_x 2.5 add le_y .5 sub crtext /i i 1 add store /le_y le_y 2 sub store } repeat /le_y 6 def /le_x 0 def 6 { /fillstyle {les_couleurs i get cvx exec fill} def le_x le_y 1 sub le_x 2 add le_y frame* les_couleurs i get le_x 2.5 add le_y .5 sub crtext /i i 1 add store /le_y le_y 2 sub store } repeat } def /les_couleurs [ (grey37) (grey38) (grey39) (grey4) (grey40) (grey41) (grey42) (grey43) (grey44) (grey45) (grey46) (grey47) ] def affiche_serie