Re: Software used for diagrams in DEC documentation

From	Johnny Billquist <bqt@softjar.se>
Newsgroups	comp.sys.dec, comp.os.vms
Subject	Re: Software used for diagrams in DEC documentation
Date	2011-04-25 23:40 -0700
Organization	Update Computer Club
Message-ID	<ip5pct$ovk$1@Iltempo.Update.UU.SE> (permalink)
References	<b5453b29-7e9d-472a-9fc8-b0d4e24ee3f1@34g2000pru.googlegroups.com> <ip333g$ruq$1@Iltempo.Update.UU.SE> <ip45t4$plf$1@news.xmission.com> <ip4d1c$bpm$1@Iltempo.Update.UU.SE> <ip4p3s$qts$2@news.xmission.com>

Cross-posted to 2 groups.

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On 2011-04-25 14:29, Richard wrote:
> [Please do not mail me a copy of your followup]
>
> Johnny Billquist<bqt@softjar.se>  spake the secret code
> <ip4d1c$bpm$1@Iltempo.Update.UU.SE>  thusly:
>
>> On 2011-04-25 09:01, Richard wrote:
>>> [Please do not mail me a copy of your followup]
>>>
>>> Johnny Billquist<bqt@softjar.se>   spake the secret code
>>> <ip333g$ruq$1@Iltempo.Update.UU.SE>   thusly:
>>>
>>>> On 2011-04-24 19:30, Richard wrote:
>>>>> Johnny Billquist<bqt@softjar.se>    spake the secret code
>>>>> <ip1ka0$cpo$1@Iltempo.Update.UU.SE>    thusly:
>>>>>
>>>>>> I doubt very many would want to go back to punched cards and uppercase
>>>>>> only terminals...
>>>>>
>>>>> Tektronix 4010 terminals are upper case only :-)
>>>>
>>>> I know... So are VT05.
>>>
>>> Oddly enough, I encounter many more Tektronix 401x terminals than I do
>>> VT05s!
>>
>> Well. I haven't touched a VT05 in about 20 years now. I don't know if I
>> could locate one if I wanted to. I'd have to check with old contacts for
>> that... I've not seen any in the wild for a long time.
>
> I'd love to get my hands on one.  I got an LA30 and it would be great
> to have the companion CRT model.

If I could locate any, it would be in Sweden. Probably not too practical 
from where ever you might live anyway... :-)

>>>> Anyway, it's not a terminal for interactive sessions. But they are ok
>>>> for playing with graphics (if you don't mind static ones).
>>>
>>> I did lots of interactive sessions on it.  Also, its a little known
>>> fact that you *can* have dynamic graphics on a 401x terminal, just not
>>> very many vectors can be refreshed fast enough for anything more than
>>> a small moving graphic.  Its done with the same mechanism that is used
>>> to do the graphic crosshair cursor.
>>
>> I know that you can have a vector or two that is dynamic (if you asked
>> me, I thought it was just one, but it's been a few years since I played
>> with this).
>
> The limit to the number of vectors you can have is based on how
> quickly you can transmit to the terminal.  Basically you have to do
> active refresh with dynamic vectors and at 9600 baud, that's not a lot
> of vectors.

You do not need to do active refresh on the one vector, or am I 
remembering that wrong?
But in case you want more, then you need to redraw each one in turn all 
the time.

>> But I guess you could always switch between several vectors by software.
>> But that will really limited, since you run at rather slow serial
>> speeds, and the vector drawing itself is rather slow, requiring lots of
>> fillers if you draw long ones.
>
> I never needed to supply any fill characters when drawing vectors, but
> it could be because we typically had 300 baud connections.

Heh. That could be the reason. At 4800 bps, you need several fillers if 
you go from one end of the screen to the other.

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt@softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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Software used for diagrams in DEC documentation urbancamo <mark@wickensonline.co.uk> - 2011-04-19 01:26 -0700
  Re: Software used for diagrams in DEC documentation ChrisQ <meru@devnull.com> - 2011-04-19 12:58 +0100
    Re: Software used for diagrams in DEC documentation Jan-Erik Soderholm <jan-erik.soderholm@telia.com> - 2011-04-19 14:00 +0200
    Re: Software used for diagrams in DEC documentation "John Reagan" <johnrreagan@earthlink.net> - 2011-04-19 08:42 -0400
      Re: Software used for diagrams in DEC documentation ChrisQ <meru@devnull.com> - 2011-04-19 16:55 +0100
        Re: Software used for diagrams in DEC documentation billg999@cs.uofs.edu (Bill Gunshannon) - 2011-04-19 16:07 +0000
          Re: Software used for diagrams in DEC documentation urbancamo <mark@wickensonline.co.uk> - 2011-04-19 12:54 -0700
            Re: Software used for diagrams in DEC documentation ChrisQ <meru@devnull.com> - 2011-04-19 22:27 +0100
              Re: Software used for diagrams in DEC documentation John Wallace <johnwallace4@yahoo.co.uk> - 2011-04-19 15:29 -0700
                Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-20 08:14 +0200
                Re: Software used for diagrams in DEC documentation ChrisQ <meru@devnull.com> - 2011-04-22 12:11 +0100
                Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-22 15:09 +0200
                Re: Software used for diagrams in DEC documentation John Wallace <johnwallace4@yahoo.co.uk> - 2011-04-23 03:32 -0700
                Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-25 11:07 +0200
              Re: Software used for diagrams in DEC documentation Hans Bachner <Hans@Bachner.priv.at> - 2011-04-19 23:55 +0000
              Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-20 06:38 +0200
              Re: Software used for diagrams in DEC documentation urbancamo <mark@wickensonline.co.uk> - 2011-04-20 00:54 -0700
                Re: Software used for diagrams in DEC documentation seasoned_geek <roland@logikalsolutions.com> - 2011-04-21 11:08 -0700
      Re: Software used for diagrams in DEC documentation Marc Van Dyck <marc.gr.vandyck@invalid.skynet.be> - 2011-04-23 22:03 +0200
        Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-24 07:24 +0200
          Re: Software used for diagrams in DEC documentation "Richard B. Gilbert" <rgilbert88@comcast.net> - 2011-04-24 09:20 -0400
            Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-24 09:49 -0700
              Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-25 02:30 +0000
                Re: Software used for diagrams in DEC documentation glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2011-04-25 02:40 +0000
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-24 23:07 -0700
                Re: Software used for diagrams in DEC documentation koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-04-25 08:15 -0500
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-25 10:58 -0700
                Re: Software used for diagrams in DEC documentation koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-04-25 15:25 -0500
                Re: Software used for diagrams in DEC documentation moroney@world.std.spaamtrap.com (Michael Moroney) - 2011-04-25 20:54 +0000
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-25 21:25 +0000
                Re: Software used for diagrams in DEC documentation glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2011-04-26 04:59 +0000
                Re: Software used for diagrams in DEC documentation kludge@panix.com (Scott Dorsey) - 2011-04-26 10:11 -0400
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-28 00:15 +0000
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-25 16:01 +0000
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-25 11:03 -0700
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-25 21:29 +0000
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-25 23:40 -0700
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-28 00:34 +0000
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-27 20:42 -0700
                Re: Software used for diagrams in DEC documentation MetaEd <metaed@gmail.com> - 2011-04-26 08:19 -0700
                Re: Software used for diagrams in DEC documentation Johnny Billquist <bqt@softjar.se> - 2011-04-26 09:46 -0700
                Re: Software used for diagrams in DEC documentation MetaEd <metaed@gmail.com> - 2011-04-27 12:19 -0700
                Re: Software used for diagrams in DEC documentation legalize+jeeves@mail.xmission.com (Richard) - 2011-04-28 00:24 +0000
                Re: Software used for diagrams in DEC documentation "Richard B. Gilbert" <rgilbert88@comcast.net> - 2011-04-25 08:02 -0400
              Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-25 10:53 +0200
          Re: Software used for diagrams in DEC documentation koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-04-25 08:14 -0500
            Re: Software used for diagrams in DEC documentation Paul Sture <paul.nospam@sture.ch> - 2011-04-25 23:13 +0200
  Re: Software used for diagrams in DEC documentation helbig@astro.multiCLOTHESvax.de (Phillip Helbig---undress to reply) - 2011-04-19 20:21 +0000
    Re: Software used for diagrams in DEC documentation   VAXman-  @SendSpamHere.ORG - 2011-04-19 21:15 +0000

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