Re: [SLE] Need advice

Carl,

On Sunday 12 February 2006 17:46, Carl Hartung wrote:
On Sunday 12 February 2006 20:03, Randall R Schulz wrote:
Nonsense. Pixels have rectangular boundaries. That's all there is
to it.

Who told you this? It's not true! There are even imaging applications
that let you specify rectangular or circular pixels.

My god! What are you talking about? Pixels are display device entities.
Are you thinking of half-tone screens? They are completely different
things. The only control you have over the nature of the pixels is
choice of which device use use to render the image. Software cannot
(CAN NOT) do that.


They absolutely are immune to such artifacts.

Nonsense. Show me a real life demonstration of this supposed
"immunity." You cannot, ergo the "immunity" is only theoretical.

You insist on conflating the mathematical object and its rendering.

You started by saying that lines drawn on raster devices had the jaggies
(which they do--at all angles except those of the raster axes). Then
you said vector drawing was "less susceptible" to this problem. Either
it is exactly as susceptible, 'cause to view such a line or curve it
has to be rendered, or it is entirely immune to such effects because
the line or curve itself is a mathematical entity defined over the
reals.

Mixing them up just confuses the issue and leads to incorrect
understandings.


You mislead when you say "less susceptible." They are, plain and
simple, immune to it.

See my point above. I think you are being misleading by insisting on
imposing theoretical perfection in a real life, practical
circumstance.

On the contrary, I'm insisting on making the proper distinctions between
the principals and the engineering practice. You're muddling the issue
by refusing to separate the two.


...

Feel free to use as few words as you like. Zero's always a safe
choice.

OK, Randall, you've proven you have some knowledge but, from a
*practical* standpoint, has this tangent contributed one bit to the
resolution of Art's original problem? I don't think it has. That's
why I hate these kinds of unnecessary technical "wee wee" contests.
If you'd weighed the real value of offering your unnecessary
'corrections' to my original advice, maybe "zero" words would have
been better choice this time?

Yeah. I've worked in digital and print imaging in both raster and vector
realms. I know something about the principles (the math) and the
practical matters (the subtleties of film, ink, paper, CRT and LCD
displays).

As to why I correct you: When I see someone post incorrect, misleading
or oversimplified information and I know it, I like to correct it.
There's too much confusion afoot and knowingly letting it stand is not
cool to me.

That's why I challenge fallacies when I see them.


Anyway, the lights just flickered (winter storm) so I've gotta shut
down.

Carl

Don't lick any flag poles or lamp posts.


Randall Schulz

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