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Subject: 
Re: My proposal for the orientation of new elements
Newsgroups: 
lugnet.cad.dev
Date: 
Wed, 24 Feb 1999 14:14:57 GMT
Viewed: 
1057 times
  
"onyx" <onyx@flash.net> writes:

I agree that all wheel/tire combos should be placed around the same
point of origin, but to extend that idea, I believe that ALL elements
should be centered at the world origin (0,0,0) unless some specific
attribute of the element reasons otherwise.

We already have a convention for this, I think.  Parts with studs should
have the top of the part (excluding the studs) in the X-Z-plane, and
otherwise be centered.

Of course, special parts need special rules.  An example is the
"joystick" parts.  Both the base and the stick are centered around the
pivot point to make it easy to use them.

And as Steve Bliss said, when positioning a new part, we need to look at
how existing parts are handeled.  This should probably be the main rule,
I think.

Regarding the wheels, the rule Onyx proposes seems to be the one most
wheels comply with anyway, so it is a good one, I think.  There are some
exceptions, though:

  The giant space wheel
  The 24x43 hub (although the 24x43 wheel is correctly rotated).

I don't think it makes sense to rotate existing parts to make the
conform.  This would cause too many problems with existing models, I
fear.

Fredrik



Message has 1 Reply:
  Re: My proposal for the orientation of new elements
 
(...) Correcting positioning and rotational errors can be done when/if a part renumbered. Which doesn't really happen all that often (it just seems like it). Steve (26 years ago, 24-Feb-99, to lugnet.cad.dev)

Message is in Reply To:
  My proposal for the orientation of new elements
 
My proposal for the standard orientation of all new elements being added to the parts catalog. LEdit/LDraw have a "standard" or "default" view that looks upon models/elements from the upper front left. The LEdit/LDraw axes are as follows in the (...) (26 years ago, 24-Feb-99, to lugnet.cad.dev)

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