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.


    Mary Ann

On 7/9/19 12:19 PM, Henry Bent wrote:
On Tue, 9 Jul 2019 at 13:34, Henry Bent <> wrote:
On Tue, 9 Jul 2019 at 13:26, Seth Morabito <> 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 <> wrote:
>> Does anyone have anything put together that can easily do the "leroy"
>>  thing described here:
>>  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:

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.

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.