[LSC] Shortcuts, Aliases and Physical _Colour labels in the Parts library

[Steve Bliss]

I think the difference between an alias and a composite part may sometimes 
be subtle, but there's one important component:  alias (or shortcut) files 
are provided to cover more known part numbers, making things easier for 
modelers, translators, and database types.  Composite parts are actual parts 
(most people would probably identify the composite part as more of a 'real 
part' than the components which make up the composite part).

Composite parts are necessary to the library, in the sense of the library 
parts mapping nicely to real life.  Aliases are not as necessary.

Steve

----- Original Message ----- 
From: "Travis Cobbs" <tcobbs at gmail.com>
To: "LDraw Standards Committee" <lsc at ldraw.org>
Sent: Friday, October 12, 2007 12:21 PM
Subject: Re: [LSC] Shortcuts,Aliases and Physical _Colour labels in the 
Parts library


It does imply that, but I strongly suspect that this was an oversight.  And
even if it wasn't, I would argue that the term "shortcut" is ubiquitous
enough in the library in XXXXc01.dat files that it has that meaning also by
default.  If you do a search for "shortcut" in the official library, you'll
find a whole bunch of instances of both meanings.  As long as the definition
of shortcut allows 1 or more parts, and makes color specification optional,
we're still good.

The official definitions of Part, Subpart, Primitive, 48_Primitive, and
Shortcut should probably all be added to the spec, though (another item for
next year's LSC).

--Travis

On 10/12/07, Chris Dee <chris_w_dee at hotmail.com> wrote:

>

>  Dear LSC

>

>

>

> Here http://news.lugnet.com/cad/dat/parts/?n=6017 Steve implies that

> XXXXc01.dat files are not shortcuts. How do you expect these to be

> identified with the new Parts header? Specifically how should the "0

> !LDRAW_ORG …" line look? It seems that what Steve is thinking of as

> shortcuts are now covered by the Alias and Physical_Colour qualifiers.

>

>

>

> Chris (nearing completion of the CA Header migration)

>

>

>

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> 11/10/2007 15:09

>

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