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Subject: 
Re: Lego XML?
Newsgroups: 
lugnet.cad
Date: 
Tue, 29 Apr 2003 23:15:36 GMT
Viewed: 
768 times
  
In lugnet.cad, Kyle McDonald writes:
I know VRML was mentioned earlier, and now XML.

Someone may want to look at X3D (I think that's what it's called.)
It is a newer relative of VRML for 3D graphics done in XML.

Well actually I was thinking more along the lines of describing a model in
terms of it's parts, but not a full 3d description like X3D.  Something like
this (sorry, this looks terrible without a monospaced font):

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE model SYSTEM "http://brick-xml.sourceforge.net/DTD/brick-xml.dtd">
<model>

  <info creator="Gary Thomas" date="04/02/2002" title="Test MOC">
    Long description, blah blah blah blah.
  </info>

  <part id="3001" color="#FF0000" x="0" y="1" z="3"/>

  <!-- optional transform attribute uses matrix transformation -->
  <part id="3001" color="#FFFF00" x="2" y="1" z="3"  transform="matrix(1 0 0 0
1 0 0 0 1)"/>

  <!-- optional transform shows a rotation about the x axis -->
  <part id="3003" color="#000000" x="1" y="9" z="0" transform="rotate(90,0,0)"/>

  <!-- color uses optional alpha channel -->
  <part id="3005" color="#FFFFFFAA" x="6" y="0" z="0"/>

</model>

So in theory, it's still compatible with ldraw/lgeo parts, etc.


  Later,

  Gary


I haven't looked at it myself, but I hear about it all the
time on the Java3D list I'm on.

It might be interesting who knows.

-Kyle



Message has 2 Replies:
  Re: Lego XML?
 
(...) Looked fine to me. I only use a monospace font. :) (...) I see. I know nothing about X3D, but I imagined a model might be something like you describe. However, theoretically the part files the model referenced could (I think?) be coded in (...) (21 years ago, 29-Apr-03, to lugnet.cad)
  Re: Lego XML?
 
(...) 1 0 0 0 1)"/> (...) Wow, that is pretty cool. A person could write a 20-line Perl program to transmogrify that into .ldr format pretty easily, and vice-versa. (...) Waycool. BTW, how do people feel about specifying colors in hex RGB format? (...) (21 years ago, 30-Apr-03, to lugnet.cad)

Message is in Reply To:
  Re: Lego XML?
 
(...) I know VRML was mentioned earlier, and now XML. Someone may want to look at X3D (I think that's what it's called.) It is a newer relative of VRML for 3D graphics done in XML. I haven't looked at it myself, but I hear about it all the time on (...) (21 years ago, 29-Apr-03, to lugnet.cad)

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