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From: | Graham Douglas |
Subject: | Re: Re: Can anyone save my sanity -- help me to understand filtering? |
Date: | Sat, 7 Jul 2001 04:36:46 +0400 (MSD) |
Hallelujah!
I have seen the light!! Thanks to your
patient
explanations, Uwe,
and a superb Lua example
posted to me by Peter Shook (who I also thanked by
e-mail)
I now have filtering
working beautifully. Hurrah!
If I may make a
suggestion, the documentation on @Filter
*really* [desperately] needs much more explanation
-- especially for us
non-Unix types ;-). It is *such* a
potentially powerful option that doing without it
(through lack
of understanding) would, in my opinion, really
impact on
Lout's power (for me, anyway).
I now realise what was causing my
confusion:
(besides my brain cells... ;-))
1. The creation of those temporary files -- I only
got that by stepping through my own
compiled version of
Lout and doing disk searches for them
to see what they
contained (what a way to learn..., but
it worked).
2. That anything written to stdout communicated
with Lout and
*THAT* was how @IncludeGraphic
got to know the name of the file
new/filtered
EPS. Hence you need to print the name of the
EPS you want to
include to stdout [eg from
within Lua]. Sheesh, that was **not at all**
obvious from the
docs -- maybe it is obvious to Unix users, I
don't know.
This was the single biggest
hurdle to working this process out.
Anyway a big, big thanks to all.
I have written the PostScript prolog I mentioned
and already received
several requests -- which I answered. The offer
still stands for those
who want a copy.
Happy Louting
(a very happy) Graham
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