Hi Romano and all,

>From my experience:

-use "show f" on each face when you need refresh small parts of window but
don't use it when you need show lot of small faces
-using one "show f" for whole window is better when you are controling more
faces in the window at the same time...then you rather use 'redraw function
in each small face instead of 'enagage

you can see the performance difference in following examples:

http://www.rebol.cz/~cyphre/draw-tutor-2orig.r - this script uses method of
refreshing each object face separately

http://www.rebol.cz/~cyphre/draw-tutor-2.r - this script uses method of one
global 'show of the whole window area

regards,

Cyphre

----- Original Message -----
From: "Romano Paolo Tenca" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, May 08, 2002 9:46 PM
Subject: [REBOL] Re: Graph Drawing & /View Performance


> Hi Christian,
>
> > (The lapse I made before was that I had an "show f" in the
> > node-face!'s engage function - there none was due. I probably have to
> > reread the chapter in "/View in 21 Days" on where to put stuff like
> > this - oh well ;-)
>
> I have tryed many show position/combination, also tryed  hardware move
with
> changes: 'offset, but
>
>  show window
>
> in this case was the best solution (i do not know why). I do not think
there
> is some good doc about show use, but if something is slow often the reason
is
> a great number of (and often also duplicate) show calling.
>
> ---
> Ciao
> Romano
>
>
>
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