Dennis Lee Bieber a écrit :
>
> Perhaps you missed that the loop (in Paper) that invokes each
> primitive's draw() is passing itself (the Paper instance)...
>
Oops, sorry I missed it in fact.
But I still have a problem with my the primitives (some pathes I had to
build ):
i.e a mathematical ray is infinite, so I must draw a segment on screen
and need the paper sizes to calculate the segments starts and ends (
I've got a lot of objects like this ). I don't know how to build them
without passing a paper instance.
The actual implementation of some primitives uses :
def __init__(self, paper_instance, etc. ):
do something
But I as mentioned before, I'm not satisfied with it since I shall
write this do draw a Line :*
paper.draw( Line( paper, x1, y1, x2, y2) This is what I don't find
aesthetic : the repetition of "paper" calls.
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