[Pharo-users] Roassal question

Hi, i have a little problem, where i think roassal could perhaps be helpfull, but i have to admit this is the very first time i looked into roassal, hence i have a stupid question: i have a collection of something like rectangles, lets say: coll:=Array with: (Rectangle origin: 500@500 corner: 510@520) with: (Rectangle origin: 505@504 corner: 511@522). now i want to produce a graph that shows these rectangles together with the x & y axis that show their positions (in a sensible way). any simple hints how i could go about this task? werner