[LSC] LDraw File Spec -Diagrams

[William Howard]

I've done some basic diagrams for the spec.

They will suffice for the purposes of discussion and ratifying the spec, but 
I'm far from happy with the artistic ability displayed within them!

However, I don't see improving the visual appearance of a diagram as a 
"material change" to the spec, so these can always be tidied up and/or 
improved later

William

----- Original Message ----- 
From: "Lars C. Hassing" <lars at hassings.dk>
To: "LDraw Standards Committee" <lsc at ldraw.org>
Sent: Monday, September 10, 2007 1:12 AM
Subject: Re: [LSC] LDraw File Spec -Initial public comments



> There's also this one I made for L3P:

> http://www.hassings.dk/l3/l3p/l3globe2.jpg

> http://www.hassings.dk/l3/l3p.html#l3globe

> I could make one without the globe.

> /Lars

>

>

> Chris Dee skrev:

>>

>> William

>>

>>

>> You have the orientation correct, but maybe an illustration like at 

>> http://www.ldraw.org/library/primref/ might be clearer. IIRC, I even drew 

>> this as an LDraw dat file.

>>

>>

>> Chris

>>

>>

>> ------------------------------------------------------------------------

>>

>> *From:* lsc-bounces at ldraw.org [mailto:lsc-bounces at ldraw.org] *On Behalf 

>> Of *William Howard

>> *Sent:* 08 September 2007 09:32

>> *To:* LDraw Standards Committee

>> *Subject:* Re: [LSC] LDraw File Spec -Initial public comments

>>

>>

>> How do I upload a picture to LDraw?

>>

>>

>> Diagram for 8a and 8b

>>

>>

>> http://www.brickish.org/members/files/whoward/LDrawCoordsSystem.png

>>

>>

>> Can someone just sanity check this

>>

>>

>> W

>>

>>     ----- Original Message -----

>>

>>     *From:* William Howard <mailto:william at howard-family.fsworld.co.uk>

>>

>>     *To:* LDraw Standards Committee <mailto:lsc at ldraw.org>

>>

>>     *Sent:* Friday, September 07, 2007 8:27 PM

>>

>>     *Subject:* Re: [LSC] LDraw File Spec -Initial public comments

>>

>>

>>     >I'll try to update the spec with the easy ones from here (and

>>     hence shorten the list) over the weekend

>>

>>

>>     I've made some of the easier edits (not uploaded the changes

>>     anywhere yet) and removed them from the list.  I've also removed

>>     the ones we have agreed not to do or are already in the spec.

>>

>>

>>     The reduced list is below

>>

>>

>>     I reckon I can do 1d, 1e, 3b, 9a, and 9c easily over the weekend.

>>

>>

>>     I have enough graphics background to make a first attempt at 8a and 

>> 8b

>>

>>

>>     BUT 5d is well outside my comfort zone so someone else (Travis?)

>>     will have to take this on

>>

>>

>>     William

>>

>>

>>

>>     ========================================================

>>

>>     1) General

>>     ----------

>>     d) File Type section needs dividing into Official and Unofficial

>>     WH: AGREE - but the Official section needs moving to the Parts

>>     Library Header spec

>>     TC: NEUTRAL

>>     LCH: NEUTRAL

>>

>>

>>     e) Common verticies paragraph needs a diagram

>>     WH: AGREE - Needs a diagram

>>     TC: AGREE

>>     LCH: AGREE

>>

>>

>>

>>     3) Filenames

>>     ------------

>>     b) The spec should not define what is permitted in an official

>>     filename (ie part file), but this text should be moved to the

>>     library header spec

>>     WH: AGREE

>>     TC: AGREE

>>     LCH: AGREE

>>

>>

>>

>>     5) Matrix operations

>>     --------------------

>>     d) Give matrix example(s) and mathematical example

>>     WH: AGREE

>>     TC: AGREE

>>     LCH: AGREE

>>

>>

>>

>>     8) Axis orientation

>>     -------------------

>>     a) Explain the "handedness" of the axis

>>     WH: AGREE

>>     TC: AGREE

>>     LCH: AGREE

>>

>>

>>     b) Explain that -y is up

>>     WH: AGREE

>>     TC: AGREE - (For these, a diagram would probably be useful.)

>>     LCH: AGREE - yes, an image is worth a 1000 words...

>>

>>

>>

>>     9) Meta commands

>>     ----------------

>>     a) META commands can do a lot and it should be stated at the

>>     beginning.

>>     WH: AGREE

>>     TC: AGREE

>>     LCH: AGREE

>>

>>

>>     c) "Write/Print" should note that this is not allowed in official

>>     parts files

>>     WH: AGREE - but interesting to note that some want the spec to

>>     include parts and some don't!

>>     TC: DISAGREE - Should have one spot in spec where we link to

>>     "rules for official parts" in separate document, and keep them out

>>     of spec entirely.

>>     LCH: DISAGREE (but agrees with TC's comment)

>>

>>     ------------------------------------------------------------------------

>>

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