Special:
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[DAT] (requires LDraw-compatible viewer)
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Subject:
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Re: More MPD
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 22 Mar 2000 14:53:46 GMT
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Viewed:
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1221 times
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Lars:
> 1. Are the files in an MPD public or private?
Public. - Mostly due to the need to be able to create a set
of LDraw readable files.
> Consider this example with three files:
>
> town.dat
> 1 16 -40 0 0 1 0 0 0 1 0 0 0 1 house1.mpd
> 1 16 40 0 0 1 0 0 0 1 0 0 0 1 house2.mpd
>
> house1.mpd
> 0 FILE house1.dat
> 1 4 0 0 0 1 0 0 0 1 0 0 0 1 3003.DAT
> 1 4 0 -24 0 1 0 0 0 1 0 0 0 1 roof.dat
> 0 FILE roof.dat
> 1 16 0 0 0 1 0 0 0 1 0 0 0 1 3043.DAT
>
> house2.mpd
> 0 FILE house2.dat
> 1 2 0 0 0 1 0 0 0 1 0 0 0 1 3003.DAT
> 1 2 0 -8 0 1 0 0 0 1 0 0 0 1 roof.dat
> 0 FILE roof.dat
> 1 16 0 0 0 1 0 0 0 1 0 0 0 1 3068.DAT
>
> For this to work as expected, "local files" in an MPD must be private,
> and cannot be referenced by other "real files".
Since the construction of the MPD files is based on a
collection of DAT files, there can only be one "roof.dat"
file, ...
unless you keep the DAT files for the two houses in
different directories.
> 2. I suggest BuildMpd and M-Peedy should be able to handle MPD's too
> as input files, and SplitMPD and M-Peedy should be able to split an MPD
> correctly into the original files, both MPD and DAT.
> You can use the town.dat above for test ;-)
OK. The transformation I imagine would result in:
0 FILE town.dat
1 16 -40 0 0 1 0 0 0 1 0 0 0 1 house1/house1.dat
1 16 40 0 0 1 0 0 0 1 0 0 0 1 house2/house2.dat
0 FILE house1/house1.dat
1 4 0 0 0 1 0 0 0 1 0 0 0 1 3003.DAT
1 4 0 -24 0 1 0 0 0 1 0 0 0 1 house1/roof.dat
0 FILE house1/roof.dat
1 16 0 0 0 1 0 0 0 1 0 0 0 1 3043.DAT
0 FILE house2/house2.dat
1 2 0 0 0 1 0 0 0 1 0 0 0 1 3003.DAT
1 2 0 -8 0 1 0 0 0 1 0 0 0 1 house2/roof.dat
0 FILE house2/roof.dat
1 16 0 0 0 1 0 0 0 1 0 0 0 1 3068.DAT
0 NOFILE
As you can see will this mean that we will have to change
some file names in the files, but it should be close to
trivial using a list of the files included in the MPD files.
> 3. Can I generally use the NOFILE meta command to skip the rest of the file,
> i.e. also for ordinary DAT files?
No. There can, theoretically, come a FILE meta-command after
a NOFILE meta-command.
> Should it be renamed to EOF/ENDOFFILE?
Due to its slightly different effect, no.
Play well,
Jacob
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Message is in Reply To:
 | | More MPD [DAT]
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| 1. Are the files in an MPD public or private? Consider this example with three files: town.dat 1 16 -40 0 0 1 0 0 0 1 0 0 0 1 house1.mpd 1 16 40 0 0 1 0 0 0 1 0 0 0 1 house2.mpd house1.mpd 0 FILE house1.dat 1 4 0 0 0 1 0 0 0 1 0 0 0 1 3003.DAT 1 4 0 (...) (25 years ago, 22-Mar-00, to lugnet.cad.dev)
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