CAD CAM EDM DRO - Yahoo Group Archive

First angle and Third angle, etc

Posted by Peter Chen
on 2001-03-24 16:35:05 UTC
Good morning,

For people struggling with 3D visualisation, I think
it is cruel to impose on them the further unneccessary
confusion from having to cope with two different
projection systems. Eg.
Regarding my view on visualisation of isometric from
orthographic projections.
It is easier to explain how one go from

_________
| |\ | (arrow)
| ___ |__|
| | |___ | __
| |______|| | (arrow)
|_________|________\
| _______ | ____ |
| | | || |___| |
| |__|___|| |___| |
|_________|________|

to



________________
/ /|
/ / |
/ solid / |
/ ___ / |<-- glass pane
/ / /|____ / | (thin box)
/ /___// /| / |
/ | |/____/ |/ /| | line art on
/____|_______|_// //| | glass
| | |/ | /
| ____ | | / /
| | |____ | |/ /Side view
| | | | /
| |________| | /
| | /
|_______________|/
Front view

subsequently to

___
/ /|____
/___// /|
| |/____/ |
| | /
|_______|/


then to try to explain to the less technical how to go
from


__________
/| ___ |
/ | | |___ |
//|| | ||
// || |______||
/ |/|| |
| | ||_________|
| |// _______ /
| / / / //
| / /__/___//
|/_________/

to the isometric view?

Come on, American projection users, lend me some
support!

LIGHTER NOTES ON LANGUAGES - GRAPHIC, GCODES, QUEEN'S
ENGLISH, etc

Extract from article "India gives English a battering"
http://www.asianewsnet.net

The British, lament the historians and politicians
alike, ruled us for nearly a hundred years, *******
censored****. The last laugh will, however, be ours as
we will eventually get our revenge by ruining their
language forever. Have a century after they left our
shores, probably in disgust at the English we speak,
we are well on our way to deliver the coup de grace.
The English is already totterring under the assualt of
Bill Gates' grammar and language checks, and will be
unable to survive the battering that it is receiving
from us.

The "learn angrezi in one week" academies, "Inglish
Midium School" springing up all over the places are
also doing a wonderful job...." Soon there will be
millions of Indians speaking such execrable English
that the British would probably have to switch to
Welsh, Swahili or Basque to maintain their
self-respect.

.... It has this shop which boldly advertises itself
as "Pig Meet here". No it is not a place that some
animal lover has put up for porcine conviviality,
where pigs can party, but rather a place where one can
buy pork.

..... What do you do when you get a message asking you
to "wring" somebody? There are lots of people whose
necks I would love to "wring" (including those first
angle lovers :-))

.... dinner I attended at a fellow Indian's place in
Adelaide..... After dinner, our host generously asked
me if I wanted to have some pot. I thought this was
some strage Ozzie custom....... Only when we were
driving back was the mystery solved when my wife
complained about my being rude and not responding
properly when offered a glass of after-dinner port. I
rest my case.

The Statesman

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Discussion Thread

Peter Chen 2001-03-24 16:35:05 UTC First angle and Third angle, etc