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Subject: 
Re: Couple of queries with LDD exporting
Newsgroups: 
lugnet.cad.dat.models
Date: 
Wed, 23 Jan 2008 18:03:25 GMT
Viewed: 
18008 times
  
In lugnet.cad.dat.models, Tim David wrote:
> I have exported one of the Hobby train models from LDD into LDraw format, and
> done some tweaking on it, (missing parts and re-ordering for instructions)
> I have tried to include all unofficial parts in the .mpd to make it properly
> compatible with a basic Ldraw installation, but I seemed to have missed
> something as I get 'part not found' errors on opening it in MLCad. However all
> parts do seem to display. Is there anyway I finding out what is missing?

The MPD contains several references to a file called 'unknown'.  It looks like
most of these references were originally references to unofficial primitive
files, like 1-24edge.dat.  These 'unknown's occur in two subfiles - 553.dat
(which isn't used by the model, so it can be deleted), and 30663.dat (an
unofficial part).  If you open the MPD in a text editor, and replace the
contents of FILE 30663.dat with the contents of the actual
c:\ldraw\parts\30663.dat, you'll be in better.  But if you want to create an MPD
which can truly be used with a plain-vanilla LDraw installation, you'll need to
hunt down those unofficial primitive files, and include them in the MPD.

> The other issue seems to be be to do with the way the export works.
> All the parts ended up being placed slightly off the 'grid', i.e. with
> positional values with odd 100ths and 1000ths of an LDU off a whole number, I
> have managed to fix this, but the rotational vaues also seem strange, when
> viewed in MLCad they are OK but when the file is viewed in the text, it show
> some of the rotation values as numbers like -9.70801e-005. (probably best to
> view the file to see what I mean) Is there any way to correct this?

I'd say you could run it through an LDraw code compactor, but the only compactor
I know of (in LDraw Add-On) chokes on this file.  It seems like there was at
least one other code compactor utility, but I don't remember what it is.  Maybe
a little research would turn one up?

Steve



Message has 1 Reply:
  Re: Couple of queries with LDD exporting  [DAT]
 
(...) Right, done that and got rid of the errors, thanks for pin-pointing the location. Strangely all the 'missing' primitives were already in the .mpd file. I've also got rid of 553.dat There does seem to be a strangeness about 30367.dat (Cylinder (...) (19 years ago, 23-Jan-08, to lugnet.cad.dat.models)

Message is in Reply To:
  Couple of queries with LDD exporting  [DAT]
 
I have exported one of the Hobby train models from LDD into LDraw format, and done some tweaking on it, (missing parts and re-ordering for instructions) I have tried to include all unofficial parts in the .mpd to make it properly compatible with a (...) (19 years ago, 23-Jan-08, to lugnet.cad.dat.models)

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