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fractint-digest       Tuesday, February 3 1998       Volume 01 : Number 098




----------------------------------------------------------------------

Date: Tue, 03 Feb 1998 09:04:56 -0600
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) Is this just me, or...?

James R. McKenzie "FIRSTNAME LASTNAME" wrote:
>
> Not to sound like a dunce but what's the big deal about messages not
> having subject headers?  Yes it's proper netiquette<sp> but still it
> doesn't stike me as a conspiracy or other plot of evil doings going on
> all about us.  Maybe it's just a few absent-minded people who click
> send prematurely without thinking.
>

All of the "Blank" email are being mangled:

1.  All tend to have a "blind carbon copy" (Bcc:) in the header
    that is blank.

2.  None have any Subject field in the header, even though they
    are replies to previous posts.

3.  None of them contain an X-Mailer field when previous posts
    by that same individual contain them.

4.  None of the From fields contain the full name and address as
    the poster normally includes it (they are missing the names).

5.  None of the To fields exist as they should from:
         [e-mail]

6.  None have the Mime-Version field.

7.  None have the Content-type field.

8.  etc......

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------------------------------

Date: Tue, 3 Feb 1998 08:31:30 -0800
From: "Jay Hill" <[e-mail]>
Subject: Re: (fractint) Is this just me, or...? NOT!

Subject:Re: (fractint) Is this just me, or...? NOT!

just in case...

> From: Paul N. Lee <[e-mail]>
> Subject: Re: (fractint) Is this just me, or...?
> Date: Tuesday, February 03, 1998 7:04 AM
>
> All of the "Blank" email are being mangled:
>
> 1.  All tend to have a "blind carbon copy" (Bcc:) in the header
>     that is blank.
>
> 2.  None have any Subject field in the header, even though they
>     are replies to previous posts.
>
> 3.  None of them contain an X-Mailer field when previous posts
>     by that same individual contain them.
>
> 4.  None of the From fields contain the full name and address as
>     the poster normally includes it (they are missing the names).
>
> 5.  None of the To fields exist as they should from:
>          [e-mail]
>
> 6.  None have the Mime-Version field.
>
> 7.  None have the Content-type field.
>
> 8.  etc......

And one was a repeat of an old one of mine - mangled.
So enough on this already, anyone look at my asinh
problem? :-)

Also, soon I will not have enough room on my web site for
Fractal of the Night and the Contest. So one will have to go.

Jay


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------------------------------

Date: Tue, 03 Feb 1998 10:37:59 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) Latest Plugin from the AltaMira Group

 - The only sad thing about this is the use of the FIF file format, which
 - Iterated Systems owns.  This will make the price high and availability
 - among other software very limited.

If you visit Iterated Systems' site, you will find that you can get their
Fractal Imager (which creates .FIF files) and Fractal Viewer (which
displays them) for free.  The relevant URLs are:

    http://www.iterated.com/nettech/fractalimager/
    http://www.iterated.com/nettech/fractalviewer/

This is definitely a change from the previous, outrageous pricing policy.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/  (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)


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------------------------------

Date: Tue, 3 Feb 1998 12:33:59 -0500 (EST)
From: Donald Archer <[e-mail]>
Subject: (fractint) Kerry Mitchell at MOCA

Fractaleers:

A very handsome fractal by Kerry Mitchell has been installed
in MOCA's Guest Gallery. Please take a look.

While you're there you can still peruse and enjoy the Sylvie
Gallet exhibit of 28 fractals. MOCA is at:

http://www.dorsai.org/~moca

Don
MOCA director



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------------------------------

Date: Tue, 03 Feb 1998 10:36:09 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) Porting xfractint to DOS / Windows

In article <c=GB%a=TMAILUK%p=DCNET%l=[e-mail]> ,
    Edward Avis <[e-mail]>  writes:
> MI/X X server, but complex apps like xfractint can need some effort.

xfractint only needs xlib right now, but that may change in the
future.

xmfract needs motif, the X toolkit and probably one or two other
things in addition to xlib.
- --
                                               Rich Thomson
                                               [e-mail]

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------------------------------

Date: Tue, 03 Feb 1998 10:58:14 -0700
From: Rich Thomson <[e-mail]>
Subject: (fractint) list volume, pars, attachments, a solution?

The volume on this list is getting quite heavy.  I'd like to propose that
we separate the posting of pars and formulas to a separate list, which is
to be moderated by a piece of software.

The piece of software will handle the following things:

- - Discarding any message that does not contain a par or formula entry

- - Extracts the par/formula file and inspects it for errors; if an
  image is recognized from the file (for instance a par using a builtin
  or one of the formulas included in the mail), a small thumbnail image
  is created.

- - Distributes par/frm files to list members in one of two ways:
  a) as plain text (no content-transfer-encoding, no MIME, etc.)
     embedded in a single message with begin/end lines to indicate
     the par/frm file names like so:

    ===== BEGIN snoopy.frm
    .... frm file here ....
    ===== END snoopy.frm
    ===== BEGIN snoopy.par
    .... par file here ....
    ===== END snoopy.par

     the exact begin/end pair construction isn't so important, just
     that the mail will be clearly marked and won't suffer from
     line wrap or =3D problems.

  b) alternately, one can obtain the pars/frms in MIME format, if
     you have more modern email software that can accept mime
     attachments or you just wish to avoid editing.

- - par/frm submissions to the list are annotated with comments at the
  beginning containing the date, subject and from fields of the
  submission. (automatic author labelling)

- - par/frm submissions can be sent to the distribution software either
  as embedded plaintext following the distribution software's
  convention, or as MIME attachments.

- - each user can decide if they want thumbnails included with the
  distributed par/frms

- - frms/pars/thumbnails and mail message commentary are combined
  together into a web page, one per submission, that serves as a
  reference archive of submissions.

I can set this up like a mailing list similar to fractint.  You
subscribe to the list distributing the kind of format you want
(embedded plain text with thumbnail, etc.).  Submissions go to a
single email address to which is attached a perl script that does the
moderation, formatting and thumbnail computation (with xfractint's
help).  If the submission doesn't contain any errors detected by the
script, it is send to the subscribers on the different lists in the
different formats.  Users can subscribe and unsubscribe themselves
from the list like any other and they can switch formats by
unsubscribing from one list and subscribing to the other one.

What do people think of this suggestion?  This would split off the
par/frm mail from this list and return the discussion more to methods,
help, etc.  Since the par distribution list would automatically web
archive every submission, you could refer to it by URL in the fractint
discussion if you wanted to.  The =3D problem would be gone forever;
the line wrap problem would be gone forever; the missing
formulaname and formulafile from a par problem would be gone forever,
missing colormaps, etc., etc., etc.
- --
                        Rich Thomson
                        [e-mail]

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------------------------------

Date: Tue, 3 Feb 1998 13:10:23 -0500 (EST)
From: Ian Kaplan <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

   I was thinking about something like this a few days ago, and I
concluded there were a few problems, none of them insurmountable-

*Server and web space to host the listserv/images
*Restricitng what the listserv accepts. Does it take the traditional
discussion ("This doesn't work!" "Nice image...") that accompanies a
.PAR? If so, then it has to be legal to send mail that doesn't actually
contain a .PAR to the list, and then it'll start getting difficult to
distinguish that list from this one...

...and so someone will need to invest some time to tell people on this
list "No, this belongs on the other list" and the reverse. Tim, as the
list admin, performs that function now, of course, but I suspect we'll
need much more frequent intervention if we start routing content that
way. We can't necessarily expect him to volunteer for the task.

Nu... Still a good idea.


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------------------------------

Date: Tue, 03 Feb 1998 11:26:17 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

In article <[e-mail]> ,
    Ian Kaplan <[e-mail]>  writes:
>    I was thinking about something like this a few days ago, and I
> concluded there were a few problems, none of them insurmountable-
>
> *Server and web space to host the listserv/images

I can secure this without difficulty.

> *Restricitng what the listserv accepts. Does it take the traditional
> discussion ("This doesn't work!" "Nice image...") that accompanies a
> .PAR? If so, then it has to be legal to send mail that doesn't actually
> contain a .PAR to the list, and then it'll start getting difficult to
> distinguish that list from this one...

I don't see this as a problem.  The moderation software simply mails
back your discussion to you and asks you to send it to a discussion
list.

> ...and so someone will need to invest some time to tell people on this
> list "No, this belongs on the other list" and the reverse.

The par/frm list would automatically reject discussion, so noone has
to do anything once the moderation software is scripted and debugged.
I think if you make the par/frm list have advantages over embedding
pars/frms directly in a fractint message, then people will use the
better system.
- --
                                               Rich Thomson
                                               [e-mail]

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------------------------------

Date: Tue, 03 Feb 1998 12:32:25 -0600
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

Rich Thomson wrote:
>
> I'd like to propose that we separate the posting of pars and
> formulas to a separate list, which is to be moderated .....
> ....... ( snipped ) .......
> What do people think of this suggestion?  This would split off the
> par/frm mail from this list and return the discussion more to methods,
> help, etc.  Since the par distribution list would automatically web
> archive every submission, you could refer to it by URL in the fractint
> discussion if you wanted to.
>

A good idea to start off with, but a lot still to work out.....

What size thumbnails??  A percentage of the original image or a set
size??  Will they be GIF or JPEG images??  If JPEG, how much compression
will be applied??

How long will the PAR/FRM/Thumbnail set be archived??  The month of
January produced so many images that many megabytes would be needed just
for that one month.  I forsee gigabytes needed if any lengthy archive
was established that held thumbnails with the PAR/FRM.

What about the individuals that post several FRM and PAR in a single
email??  Will they be archived as a set or single items??  If the
distribution of a "multiple" FRM/PAR/Thumbnail goes out to every
subscriber, a large posting could be a few hundred-KB of email.

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------------------------------

Date: Tue, 3 Feb 1998 13:54:09 -0500 (EST)
From: Ian Kaplan <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

Rich wrote:
>     Ian Kaplan <[e-mail]>  writes:

>
> > *Restricitng what the listserv accepts. Does it take the traditional
> > discussion ("This doesn't work!" "Nice image...") that accompanies a
> > .PAR? If so, then it has to be legal to send mail that doesn't actually
> > contain a .PAR to the list, and then it'll start getting difficult to
> > distinguish that list from this one...
>
> I don't see this as a problem.  The moderation software simply mails
> back your discussion to you and asks you to send it to a discussion
> list.
>
> > ...and so someone will need to invest some time to tell people on this
> > list "No, this belongs on the other list" and the reverse.
>
> The par/frm list would automatically reject discussion, so noone has
> to do anything once the moderation software is scripted and debugged.
> I think if you make the par/frm list have advantages over embedding
> pars/frms directly in a fractint message, then people will use the
> better system.


Mmm... But the average life of a par is more like:

1. Par posted.
2. Someone points out that it's missing a }.
3. Par posted, corrected.
4. Someone says it still doesn't work for them.
5. Two other people explain that that person is missing a formula, and
post the formula.

Those discussion-y posts take up about as much volume as the actual pars,
and are much more annoying (though quite necessary) to my mind. Plus the
posts telling people that the pars they posted are pretty, of course. I
think that's the group-of-posts that could be most usefully moved to a
separate list. Nu?


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------------------------------

Date: Tue, 03 Feb 1998 10:46:11 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: (fractint) Re: Spam from web pages

If there is software to scan web pages for e-mail addresses, I was not
aware of it, but that doesn't mean it isn't there! :)  It's a little less
practical, and a lot more time-consuming, to harvest addresses from
existing web pages, unless you're prowling through an online community like
GeoCities, because there are so many pages which don't contain addresses.

If you are really paranoid about e-mail addresses being on your web page,
but still want people to be able to contact you, you will need to create a
feedback form, and hide your actual e-mail address in the script that
processes the form.  In this way, your address is never visible directly
from a web page.  This is not an amateur solution, though, as most web
hosts don't let you supply your own CGI scripts without paying extra.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/  (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)


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------------------------------

Date: Tue, 03 Feb 1998 10:43:07 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) Is this just me, or...? NOT!

Jay,

 - Also, soon I will not have enough room on my web site for
 - Fractal of the Night and the Contest. So one will have to go.

I have space, if you still want to keep the pages up.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/  (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)


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------------------------------

Date: Tue, 03 Feb 1998 13:17:50 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

In article <[e-mail]> ,
    Ian Kaplan <[e-mail]>  writes:
> 1. Par posted.
> 2. Someone points out that it's missing a }.

The moderation software does a sanity check on the par and mails it
back to the author if it encounters problems.

> 3. Par posted, corrected.
> 4. Someone says it still doesn't work for them.
> 5. Two other people explain that that person is missing a formula, and
> post the formula.

These are exactly what the moderation software eliminates.

> Those discussion-y posts take up about as much volume as the actual pars,

Again, segregating the pars to a separate list lets you get the pars
and not the discussion if that is what you want.

> and are much more annoying (though quite necessary) to my mind. Plus the
> posts telling people that the pars they posted are pretty, of course. I
> think that's the group-of-posts that could be most usefully moved to a
> separate list. Nu?

All these kinds of discussionary posts would be automatically culled
by the moderation software.
- --
                                               Rich Thomson
                                               [e-mail]

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------------------------------

Date: Tue, 03 Feb 1998 13:19:27 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

In article <[e-mail]> ,
    "Paul N. Lee" <[e-mail]>  writes:
> What size thumbnails??  A percentage of the original image or a set
> size??  Will they be GIF or JPEG images??  If JPEG, how much compression
> will be applied??

None of this really matters although individual values will be chosen
for those parameters.

> How long will the PAR/FRM/Thumbnail set be archived??  The month of
> January produced so many images that many megabytes would be needed just
> for that one month.  I forsee gigabytes needed if any lengthy archive
> was established that held thumbnails with the PAR/FRM.

Indefinately; disk space is cheap.

> What about the individuals that post several FRM and PAR in a single
> email??  Will they be archived as a set or single items??  If the
> distribution of a "multiple" FRM/PAR/Thumbnail goes out to every
> subscriber, a large posting could be a few hundred-KB of email.

Each submission would be archived as a group; whether a submission
constitutes 10 par files or 1 par file is up to the submitter.  The
moderation software would impose a size restriction on submissions,
the exact value can be determined by experiment or fiat.
- --
                                               Rich Thomson
                                               [e-mail]

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------------------------------

Date: Tue, 3 Feb 1998 15:27:11 -0500 (EST)
From: Ian Kaplan <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

Rich wrote...
>
>
> In article <[e-mail]> ,
>     Ian Kaplan <[e-mail]>  writes:
> > 1. Par posted.
> > 2. Someone points out that it's missing a }.
>
> The moderation software does a sanity check on the par and mails it
> back to the author if it encounters problems.

Works for me... were you going to write a separate par-parser or rely on
XFractint's? Is a given XFractint installation reasonably guaranteed to
work with any valid par, or can it have machine-specific problems? Do you
have any way to isolate pars which are syntactically correct but clearly
not doing what they were intended to, or will you just live with those?
Can XFractint return meaningful error messages to your perl scripts? I
haven't worked with it in batch mode.

Nu...


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Date: Tue, 3 Feb 1998 15:35:22 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: (fractint) M-set area: an Idea

There are well-known upper & lower bounds on the area of M. I have a
thought: Get similar bounds for the areas of the M-set for z^n+c, for n=3,
4, 5, and 50. This last will be nearly a circle and the area estimate
should be quite good. If there's a logical progression from the estimated
areas, then the area for z^50+c could be used to get a precise guess at
the area of M, with orders of magnitude more precision than we have now.


- --
    .*.  Friendship, companionship, love, and having fun are the reasons for
 -()  <  life. All else; sex, money, fame, etc.; are just to get/express these.
    `*'  Send any and all mail with attachments to the hotmail address please.
Paul Derbyshire [e-mail] [e-mail]

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Date: Tue, 03 Feb 1998 13:35:17 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

In article <[e-mail]> ,
    Ian Kaplan <[e-mail]>  writes:
> Works for me... were you going to write a separate par-parser or rely on
> XFractint's?

Syntax of a par is pretty simple, so the moderation script can check
it for validity itself.

> Is a given XFractint installation reasonably guaranteed to
> work with any valid par, or can it have machine-specific problems?

I'm not aware of any machine-specific problems, other than some
slowness :)

> Do you
> have any way to isolate pars which are syntactically correct but clearly
> not doing what they were intended to, or will you just live with those?

The software is just intended to catch the obvious errors, it can't
examine the output of a syntactically valid par and make aesthetic
judgements about the resulting image...

> Can XFractint return meaningful error messages to your perl scripts? I
> haven't worked with it in batch mode.

See above.
- --
                                               Rich Thomson
                                               [e-mail]

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Date: Tue, 3 Feb 1998 12:41:27 -0800
From: "Jay Hill"<[e-mail]>
Subject: (fractint) Probably a stupid goof, Fractint asinh function and Damien...

I wrote:
>I'm still puzzled by this asinh function and so have made a web page to
>show the problem.
>Here is a formula involving sinh and asinh of the complex variable c. If
the
>test is true, I color the corresponding pixel white.  Otherwise, some
other
>color.
|2*sinh[(asinh(sqrt(-6.75)*c))/3]| <= 1
>Probably a stupid goof. Sure would like to get it working.  After this
one,
>I have a really hard one that also does not work. I hope breaking breaks
>the other.

Yes, a stupid goof!  If I would have written it in Fractint as shown above
instead of "translating it into code"...  It works fine!  I used 'abs()'
which
in fractint means something else.  Good grief, Dr. J is gunna be mad at
me tonight...   He has been pacing in so many dimensions, wondering
about this.  :-)

Sorry to bother the list.


Damien wrote:

>I have space, if you still want to keep the pages up.
The images are as of right now spread across at least three sites, only
two are mine.  If you have room for all thumbs and big versions, we could
put them there. I could point to them my page so existing links several
sites
have would not break. Also, there is some prettying up (maybe) that could
be done  before the Kit is finally archived.   You of course could also
host
the HTML page, if this works for you.   Thanks for the offer.  It would be
nice
to have the big picture versions on the web.  They take about 80MByte +-.

Jay





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Date: Tue, 3 Feb 1998 21:10:21 -0000
From: "Bagpuss" <[e-mail]>
Subject: (fractint) Feb 1998 web pages update

Hi all,
    I have now updated the pages for February, there are now
contributions from 7 artists, with 37 images in total.  This
brings the pages up to date with all pars coming through my
mailbox up to 6:30pm GMT tonight.

The URL is http://ireland.iol.ie/~bagpuss

Enjoy.

Stephen
Consistency is the defence of a small mind -- Belgarath


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Date: Tue, 03 Feb 1998 15:17:59 -0600
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

Rich Thomson wrote:
>
> Paul N. Lee wrote:
> >
> > How long will the PAR/FRM/Thumbnail set be archived??
>
> Indefinately; disk space is cheap.

Some easy form of indexing and/or a search engine webpage would
facilitate accessing the archives.

>
> Each submission would be archived as a group; whether a submission
> constitutes 10 par files or 1 par file is up to the submitter.  The
> moderation software would impose a size restriction on submissions,
> the exact value can be determined by experiment or fiat.
>

Just as long as it will hold one of Paul Carlson's lengthy (and very
much appreciated) formula/explanation.  :-)

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Date: Tue, 03 Feb 1998 16:44:07 -0800
From: Peter Jakubowicz <[e-mail]>
Subject: (fractint) What's a Mitchell filter?

What's a Mitchell filter? TIA.


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Date: Tue, 03 Feb 1998 13:48:05 -0800
From: kathy roth <[e-mail]>
Subject: (fractint) FotN

Jay Hill wrote
>Also, soon I will not have enough room on my web site for
>Fractal of the Night and the Contest. So one will have to go.

I vote for FotN but would hate to lose either of them.


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Date: Tue, 03 Feb 1998 16:01:54 -0600
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) What's a Mitchell filter?

Peter Jakubowicz wrote:
>
> What's a Mitchell filter?  TIA.
>

It's for preserving image quality through interpolation.

Two pass Mitchell filtering is the best choice for Jpegs or images with
a lot of
fine lines.  This technique performs low-pass filtering that smooths out
noise.

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Date: Tue, 03 Feb 1998 15:12:49 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) What's a Mitchell filter?

In article <[e-mail]> ,
    Peter Jakubowicz <[e-mail]>  writes:
> What's a Mitchell filter? TIA.

Ah, you must have read something about anti-aliasing :)

The mitchell filter is quadratic filter kernel described in a paper by
Don P. Mitchell, hence the name "mitchell filter".  It is supported by
the zoom program
<ftp://ftp.xmission.com/pub/users/l/legalize/misc/zoom.zip>
- --
                                               Rich Thomson
                                               [e-mail]

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Date: Tue, 03 Feb 1998 16:17:45 -0600
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

Rich Thomson wrote:
>
> The volume on this list is getting quite heavy.
>

Something else that could help:  if those that reply to postings would
eliminate the FractInt Signature and other parts of unreferenced email
when replying.

Sending out a whole copy of the original post is usually not necessary
when commenting about a couple of sentences in that email.  I know disk
space is cheap, but in the long run, all of that duplicated email adds
up.

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Date: Tue, 03 Feb 1998 16:30:14 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) What's a Mitchell filter?

Rich,

 - The mitchell filter is quadratic filter kernel described in a paper by
 - Don P. Mitchell, hence the name "mitchell filter".

Quadratic?  I thought it was cubic.  Checking my Mitchell filter code sure
gives that impression, too.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/  (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)


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Date: Tue, 3 Feb 1998 19:50:33 -0500
From: Les St Clair <[e-mail]>
Subject: (fractint) gravijul

Hi Sylvie,

>>  It's been a while since we haven't seen pars based on gravijul!  Here=

are
mine:<<

Exquisite!

I especially liked #2

Any "gallet" variations on the gravijul.frm in the pipeline?

- - Les


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Date: Wed, 04 Feb 1998 13:15:57 +1300
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) list volume, pars, attachments, a solution?

I do like this idea, since it would make things a lot easier when it comes
to extracting pars and frms from the list for archiving.

At 13:19 03/02/98 -0700, Rich Thomson wrote:
>
>> How long will the PAR/FRM/Thumbnail set be archived??  The month of
>> January produced so many images that many megabytes would be needed just
>> for that one month.  I forsee gigabytes needed if any lengthy archive
>> was established that held thumbnails with the PAR/FRM.
>
>Indefinately; disk space is cheap.
>

I would like to make a suggestion at this point. The moderation software
(or an adjunct thereof), already checking the syntactic correctness of the
post (not just the occasional missing '}' or extra '{' but also a possible
row of '>') could also parse the formula and the par into some internal
structure, then unparse it back into .par or .frm. The reason for this
forward- and back-translation step is to normalise the entries: a standard
width for rows in a "colors=" entry field, for example, to quash wraparound
hassles; or trimming down on blank lines or gratuitous whitespace. Also,
the "=3D" or "a'" diseases could be filtered if present (though the former
may cause problems if done clumsily.) Comments would have to be retained
for expository and authorship purposes, but may have extra lines added
("Submitted: ##/##/#### by XXXXX <[e-mail]>" or some such) - attached by
the moderating software using subscriber information for purposes of
indexing and requests (see below).

If a PAR is submitted that requires a formula that is neither provided in
the submission nor is in the formula archive (which is maintained in an
orgform manner) - or not in the Fractint standard release, for that matter
- - an email could be sent back to the sender noting the fact and requesting
that the formula be supplied: the par is not posted until its formula is
available.

I would also suggest that a further type of posting could be submitted to
this list: requests for particular pars or formulae, or indexes of those
that are already archived, or copies of the archive. With submission date
comments added one could also ask for those entries which have been
submitted "since ##/##/##" or "by XXXX".

With all this extra functionality, of course, I note that the mailing list
itself becomes more like a noticeboard announcing new pars and formulae to
its subscribers.

I'm not sure about the thumbnail idea - wasn't there some trouble some time
back with binary attachements getting munted somewhere along the line? I'm
probably like everyone else in wishing that Fractint could render any high
resolution image in nothing flat, but there is still the option of using
the "V" screen to generate your own thumbnails.

Of course, if the idea about requesting and receving copies of the archive
were to be implemented, it would be a _very good_ idea to use a binary
encoding.


Just a couple of ideas I've spun off thinking about this; feel free to
start shooting of them down :-)

Morgan L. Owens




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End of fractint-digest V1 #98
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