Subject:
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Re: Previous step color scaling
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 17 Oct 2007 13:03:37 GMT
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Viewed:
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7761 times
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In lugnet.cad, Jim DeVona wrote:
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Here is the example car with PreL3P commands inserted:
0 Car
0 Name: CAR.DAT
0 Author: James Jessiman
0 Original LDraw Model - LDraw beta 0.27 Archive
0 Car
0 !PREL3P +codes none
0 !PREL3P -ldconfig faded.ldr
1 0 0 0 -90 1 0 0 0 1 0 0 0 1 4315.DAT
1 7 0 0 -60 1 0 0 0 1 0 0 0 1 4600.DAT
1 0 0 0 0 1 0 0 0 1 0 0 0 1 3031.DAT
1 7 0 0 60 1 0 0 0 1 0 0 0 1 4600.DAT
1 0 0 0 90 -1 0 0 0 1 0 0 0 -1 4315.DAT
0 !PREL3P -ldconfig normal.ldr
1 46 30 -8 -90 1 0 0 0 1 0 0 0 1 3024.DAT
1 46 -30 -8 -90 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 0 -8 -60 0 0 1 0 1 0 -1 0 0 3020.DAT
1 4 30 -8 -10 0 0 1 0 1 0 -1 0 0 3623.DAT
1 4 -30 -8 -10 0 0 1 0 1 0 -1 0 0 3623.DAT
1 4 30 -8 30 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 -30 -8 30 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 0 -8 50 0 0 1 0 1 0 -1 0 0 3021.DAT
1 4 0 -8 90 1 0 0 0 1 0 0 0 1 3710.DAT
1 1 0 -8 0 1 0 0 0 1 0 0 0 1 4079.DAT
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If you have access to a *nix machine, or have installed the appropriate cygwin
components on a Windows box, the following script should take a bunch of step
files spit out from MLCad and insert the appropriate PREL3P commands in.
#! /bin/sh
prevfile=''
for thisfile in $*; do
if [ "$prevfile" = "" ]; then
echo 0 !PREL3P -ldconfig normal.ldr > faded.$thisfile
cat $thisfile >> faded.$thisfile
else
echo 0 !PREL3P +codes none > faded.$thisfile
echo 0 !PREL3P -ldconfig faded.ldr >> faded.$thisfile
cat $prevfile >> faded.$thisfile
echo 0 !PREL3P -ldconfig normal.ldr >> faded.$thisfile
diff $prevfile $thisfile | egrep ^\> | cut -c3- >> faded.$thisfile
fi
prevfile=$thisfile
done
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Example usage:
./fadesteps.sh CAR*.ldr
Given the two CAR ldr files in Jaco’s message, here is the output for step 2
(saved in a file named faded.CAR_00002.ldr):
0 !PREL3P +codes none
0 !PREL3P -ldconfig faded.ldr
0 Car
0 Name: CAR.DAT
0 Author: James Jessiman
0 Original LDraw Model - LDraw beta 0.27 Archive
0 Car
1 0 0 0 -90 1 0 0 0 1 0 0 0 1 4315.DAT
1 7 0 0 -60 1 0 0 0 1 0 0 0 1 4600.DAT
1 0 0 0 0 1 0 0 0 1 0 0 0 1 3031.DAT
1 7 0 0 60 1 0 0 0 1 0 0 0 1 4600.DAT
1 0 0 0 90 -1 0 0 0 1 0 0 0 -1 4315.DAT
0 !PREL3P -ldconfig normal.ldr
1 46 30 -8 -90 1 0 0 0 1 0 0 0 1 3024.DAT
1 46 -30 -8 -90 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 0 -8 -60 0 0 1 0 1 0 -1 0 0 3020.DAT
1 4 30 -8 -10 0 0 1 0 1 0 -1 0 0 3623.DAT
1 4 -30 -8 -10 0 0 1 0 1 0 -1 0 0 3623.DAT
1 4 30 -8 30 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 -30 -8 30 1 0 0 0 1 0 0 0 1 3024.DAT
1 4 0 -8 50 0 0 1 0 1 0 -1 0 0 3021.DAT
1 4 0 -8 90 1 0 0 0 1 0 0 0 1 3710.DAT
1 1 0 -8 0 1 0 0 0 1 0 0 0 1 4079.DAT
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Note that the script assumes that the files will be fed to it in step order. On
a *nix machine (and under cygwin as well, I assume), alphabetical order will be
used if you say *.ldr, so that makes usage easy. It also assumes that each step
file is an exact superset of the previous step file. This is true of the two
sample files Jaco posted.
The script is quick and dirty, so you’ll want to modify the lines that insert
the PREL3P meta-commands to use the ldr filenames of your own custom LDConfig
files if you choose to use filenames other than faded.ldr and normal.ldr for
those.
--Travis
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Message has 1 Reply:
 | | Re: Previous step color scaling
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| (...) I tried the script out in Windows using cygwin, and it seems to work. Some observations: Until prel3p 1.3 is released by Jim, I can't be sure it works. The output is a mixture of DOS and Unix line endings. The files generated by MLCAD have DOS (...) (17 years ago, 17-Oct-07, to lugnet.cad, FTX)
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Message is in Reply To:
| | Re: Previous step color scaling [DAT]
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| (...) Correct. Technically, the prel3p commands affect color substitution on following lines, so you'll need to insert code in two places: once at the beginning of the model to use the "faded" colors, and again at whatever point you wish to restore (...) (17 years ago, 17-Oct-07, to lugnet.cad)
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