[TUHS] Floppy to modern files for Usenet maps

Mary Ann Horton Gmail mah at mhorton.net
Wed Jul 10 06:54:46 AEST 2019


Thank you, Henry!

I was able to download the SVG and render it (mostly) legible for the 
map packet for the event tomorrow.

Any chance you could do the same for this file? It looks smaller, but 
it's a couple weeks newer so it's possible it's somehow better.

http://www.stargatemuseum.org/maps/philabs.26972.txt

Thanks!

     Mary Ann

On 7/9/19 12:19 PM, Henry Bent wrote:
> On Tue, 9 Jul 2019 at 13:34, Henry Bent <henry.r.bent at gmail.com 
> <mailto:henry.r.bent at gmail.com>> wrote:
>
>     On Tue, 9 Jul 2019 at 13:26, Seth Morabito <web at loomcom.com
>     <mailto:web at loomcom.com>> wrote:
>
>         On Tue, Jul 9, 2019, at 10:13 AM, Henry Bent wrote:
>         > On Tue, 9 Jul 2019 at 12:28, Mary Ann Horton Gmail
>         <mah at mhorton.net <mailto:mah at mhorton.net>> wrote:
>         >> Does anyone have anything put together that can easily do
>         the "leroy"
>         >>  thing described here:
>         >>
>         >> http://www.stargatemuseum.org/maps/032383.GRF.txt
>         >>
>         >>  and produce the graphical map it contains?
>         >>
>         >>  Mary Ann
>         >
>         > I got as far as compiling leroy on 4.1C BSD and feeding the
>         attached files through it.
>
>         I'm impressed that you were able to find leroy! I just did
>         about fifteen minutes of searching online and was unable to
>         find it. If you wouldn't mind, could you share it with us? I'd
>         enjoy playing with it.
>
>
>     It's on the 1981 Usenix tape, in the ucol directory:
>     https://www.tuhs.org/Archive/Applications/Shoppa_Tapes/usenix_81.tar.gz
>
>     It looks like leroy produces output for an "extended" form of
>     plot; from the docs:
>     --
>          The plot stream leroy emits is intended for,  and  must
>     be directed to, an extended UNIX plot filter.  These filters
>     recognize a number of commands not included in  the  vanilla
>     seventh  edition  filters,  mostly  dealing with the Hershey
>     fonts.  The extended plot filters are upward compatible with
>     their  predecessors  and  have been implemented in a fashion
>     which makes tailoring new devices filters very  straightfor-
>     ward.   The  source  code  is available on request. Filters
>     currently exist for the Tektronix 4014,  the  Versatec,  the
>     HP7221A, and the Qume.
>     --
>
>     -Henry
>
> I realized that UCol was using a PDP-11, not a VAX, so I switched to 
> running things under Ultrix 3.1. Using the extended plot libraries 
> that UCol provided on the usenix tape, I was able to get Tektronix 
> 4014 output which I was able to run through a modern tek2plot.  Here 
> are links to the raw plot file and an SVG, which I think is most 
> useful for this sort of display.
>
> https://drive.google.com/file/d/19mdAYvjlAq7qp5KyJWQrgMwefOfq7XuC/view?usp=sharing
> https://drive.google.com/file/d/1tX7Qclk-1V5BOrXWKP0bZouf6PoZ3KlK/view?usp=sharing
>
> -Henry
>
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