Re: “We are doomed”

From	"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: “We are doomed”
Date	2024-01-22 12:24 -0800
Organization	A noiseless patient Spider
Message-ID	<uomitb$sk2b$2@dont-email.me> (permalink)
References	<uo6ufu$1kle9$1@dont-email.me> <uoeebu$387sh$2@dont-email.me> <uokcf9$dq2p$4@dont-email.me> <uoliqq$n00a$1@dont-email.me>

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On 1/22/2024 3:16 AM, Malcolm McLean wrote:
> On 22/01/2024 00:22, immibis wrote:
>> On 1/19/24 19:17, Malcolm McLean wrote:
>>> One problem that could be very easily fixed is that there is no 
>>> standard representation of a point or a vector. Whilst generally it's 
>>> just a POD structure with x and y members, the name varies, and 
>>> sometimes the dimensions are referred to by index instead of by 
>>> letter. You can also have a philosophical discussion about whether 
>>> points and vectors should be the same structures or incompatible 
>>> structures.
>>> But a simple standardisation would mean the end of pointless editing 
>>> of code just to conform to whatever the host program has chosen.
>>
>> And what should be the data type of the coefficients of the vector? 
>> And what should? Why not also have matrices? What is the maximum 
>> dimension supported? Are homogeneous coordinates a built-in feature? 
>> No, leave the graphics stuff to a graphics team.
> It should take a template, so any type can be used for the coefficients. 
> Unless you have some weird and wonderful ideas, it will of course be 
> scalar.
> I'd recommend a 2D with x and y and a 3D with x, y and z. Humanity is 
> not going to be elevated to a higher dimension any time soon. No 
> homogenous co-ordinates. No angle / magnitude notation. No need for 
> matrices because we already have a natural representation of the these, 
> since C++ supports 2 dimensional fixed size array.
> Needing to store points in 2D or 3D space is a common requirement, and 
> code needs to communicate with other modules. One of which will be the 
> graphics system, which may well have requirements beyond simple points 
> in space, but will include such a requirement.

And 4-ary with (x, y, z, w)

Again I am quite fond of the GLM library. It's just nice to me.

Thread

“We are doomed” Lynn McGuire <lynnmcguire5@gmail.com> - 2024-01-16 16:03 -0600
  Re: “We are doomed” Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-19 18:17 +0000
    Re: “We are doomed” Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-19 18:35 +0000
      Re: “We are doomed” Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-20 13:59 +0000
        Re: “We are doomed” "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-20 11:22 -0800
        Re: “We are doomed” Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-21 04:06 +0000
          Re: “We are doomed” Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-22 11:22 +0000
            Re: “We are doomed” "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-22 12:22 -0800
    Re: “We are doomed” "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-19 13:58 -0800
    Re: “We are doomed” immibis <news@immibis.com> - 2024-01-22 01:22 +0100
      Re: “We are doomed” Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-22 11:16 +0000
        Re: “We are doomed” "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-01-22 12:34 +0100
          Re: “We are doomed” Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-22 12:31 +0000
        Re: “We are doomed” "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-22 12:24 -0800
        Re: “We are doomed” MarioCCCP <NoliMihiFrangereMentulam@libero.it> - 2024-01-31 01:17 +0100

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