On Tue, 9 Jul 2019 at 13:26, Seth Morabito <web@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@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