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From: Robert Riches <spamtrap42@jacob21819.net>
Newsgroups: comp.os.linux.misc
Subject: Re: GIMP 3.0.0-RC1
Date: 11 Feb 2025 05:04:55 GMT
Organization: none-at-all
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Message-ID: <slrnvqlmjm.ct8.spamtrap42@one.localnet>
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On 2025-02-11, WokieSux282@ud0s4.net <WokieSux283@ud0s4.net> wrote:
> On 2/10/25 4:41 PM, D wrote:
>> 
>> 
>> On Mon, 10 Feb 2025, candycanearter07 wrote:
>> 
>>> D <nospam@example.net> wrote at 21:19 this Saturday (GMT):
>>> [snip]
>>>> My most powerful software was a multi-path checker to a storage system
>>>> that held a lot of pension money.
>>>>
>>>> It was written in bash. =D
>>>>
>>>> Ok, ok... I wrote a GUI for some kind of batch job mgmt software that 
>>>> IBM
>>>> hobbled together in order to trace dependencies, that was done in 
>>>> python.
>>> [snip]
>>>
>>>
>>> Did you use something like tkinter?
>>>
>> 
>> Hmm, it was a long time ago, so I no longer remember. I _think_ it was 
>> some kind of graph library that enabled you to generate graphics based 
>> on some kind of node and vertice notation. It then generated a pdf which 
>> you would zoom into, which visualized all the dependencies of all the 
>> batch jobs. Sorry, that's about the best I can do. The code is long lost 
>> in time, like tears in rain.
>
>    "Vector" graphics ? You don't see that approach much
>    any more. Was most popular when you could buy vector
>    CRT displays - think 1950s/60s movies about NORAD or
>    similar. They didn't have the stuff for big sharp
>    bitmaps so you just had the CRT move a bright dot
>    around XY coords. Kinda like working a pen potter.
>
>    Vector makes no sense but with anything but CRTs
>    as the dot path is made by directly driving the XY
>    coils in the tube rather than any kind of 'scan'
>    being involved.
>
>    Hmmm ... I think there was an old 'asteroid' kind
>    of arcade game that used vector. Very sharp, bright,
>    quick outline drawings.

Yes, there was an Asteroid arcade game that used vector graphics
on a CRT.  It was a rather pretty picture.

Tektronix had some fairly nice (but expensive) BASIC machines in
the late 1970s and into the earlier 1980s in the 4050 series:

    4051 6800 and ~12" perfectly flat screen 1024x768

    4052 bit-slice ~20MHz, same screen as 4051

    4054 bit-slice ~20MHz, 19" curved screen 4Kx3K

Everything in BASIC was 64-bit FP, for which the bit-slice CPU
had an opcode for FP add/sub/mult/div.  I don't remember whether
trig functions were opcodes or done by the ROM.

-- 
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)