# Re: Office Space ;) and coordinate systems

Thu, 1 Sep 94 17:20:41 EDT

I basically agree with andrieu@alta.com (Joe Andrieu) (see end)

Here's my vote for a beginning standard coordinate system...

-x = left
+x = right
-y = down
+y = up
-z = back
+z = front

(0,0) for center/origin

metric system for units

+y up

|
|
|
|
left right
-x ----------------------- 0 ----------------------- +x

|
|
|
|

-y down

:: Date: Mon, 29 Aug 94 17:00:25 PDT
:: To: www-vrml@wired.com
:: From: andrieu@alta.com (Joe Andrieu)
:: Subject: Re: Office Space ;) and coordinate systems
::

.....

:: Normal Space: z = up, x = across horizontally from left to right, y =
:: horizontally away from the "front", 1 unit = 1 meter.
::
:: Galactic Space: z,x,y = standard, but 1 unit = 1 AU.
::
:: Micro Space: z,x,y = standard, but 1 unit = 1 um
::
:: etc., any number of basis sets can be established.
::
:: Now different creators and authors can build objects and scenes specifying
:: a common native space - noting so in the definition file. Then others can
:: use these objects or link to these scenes and have some idea about scale
:: and orientation, knowing without looking what transformations will work.
:: These voluntary basis standards will help facilitate object exchange and
:: scene integration, but allow creators and authors to use unique and
:: arbitrary coordinate systems as they desire.
::
:: Is there any agreement that this set up would satisfy both our flexibility
:: and standardization concerns?
::
:: -j
::
:: P.S.
:: Common Behaviors is a completely different ball 'o wax.

Agreed. And behaviours sound like a whole lot of fun to me :)

::
::
:: Joe Andrieu andrieu@alta.com
:: 818-405-1812

```--
Robert K. Foster
Analyst / Designer / Programmer
Mid-Michigan MRI, Inc., Lansing, MI, USA