Special:
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[DAT] (requires LDraw-compatible viewer)
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Subject:
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Re: Mirror Building
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Newsgroups:
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lugnet.cad.mlcad
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Date:
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Mon, 30 Mar 2009 20:13:56 GMT
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Viewed:
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16852 times
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> Why using a special program?
>
> First build the half of your model.
> This model is then referenced by the main file with a line like
> 1 16 0 0 0 1 0 0 0 1 0 0 0 1 modelhalf.dat
>
> The next line is then
> 1 16 0 0 0 1 0 0 0 -1 0 0 0 1 modelhalf.dat
>
> Or did I missunderstood your question?
hello Mike,
I think that this method only rotates the model...
was if I have somthing like that:
0 Untitled
0 Name: test.ldr
0 Author: MLCad
0 Unofficial Model
0 COLOR 71 Stone_Gray 0 163 162 164 255 163 162 164 255
0 COLOR 72 Dark_Stone_Gray 0 99 95 97 255 99 95 97 255
0 COLOR 151 Light_Stone 8 229 228 222 255 229 228 222 255
0 ROTATION CENTER 0 0 0 1 "Custom"
0 ROTATION CONFIG 0 0
1 0 -170 4 -10 1 0 0 0 1 0 0 0 1 6081.DAT
1 0 -150 20 0 1 0 0 0 1 0 0 0 1 2456.DAT
1 0 -110 12 10 1 0 0 0 1 0 0 0 1 4276b.dat
1 14 40 4 -10 1 0 0 0 1 0 0 0 1 6081.DAT
1 14 20 20 0 1 0 0 0 1 0 0 0 1 2456.DAT
1 14 -20 12 10 -1 0 0 0 1 0 0 0 -1 4276b.dat
0
I draw the black part and then I expect to have it "mirrored" like the
yellow one..
the same effect as you put the part in front of a mirror... not just
rotating it
am I right?
thank you
Cristian
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Message has 2 Replies:
 | | Re: Mirror Building [DAT]
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| (...) If you put a minus sign in front of one of the ones in an identity matrix, and leave everything else alone, it will mirror about the corresponding axis. For example, this one uses your original geometry, and mirrors the black part around the X (...) (16 years ago, 30-Mar-09, to lugnet.cad.mlcad)
| | | Re: Mirror Building [DAT]
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| (...) Oh, I made a mistake. It should be for the second line for rotation about Y: The next line is then 1 16 0 0 0 -1 0 0 0 1 0 0 0 1 modelhalf.dat You have to make sure that the origin of your modelhalf.dat will be at the "mirror surface". Here an (...) (16 years ago, 30-Mar-09, to lugnet.cad.mlcad)
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Message is in Reply To:
| | Re: Mirror Building [DAT]
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| (...) Why using a special program? First build the half of your model. This model is then referenced by the main file with a line like 1 16 0 0 0 1 0 0 0 1 0 0 0 1 modelhalf.dat The next line is then 1 16 0 0 0 1 0 0 0 -1 0 0 0 1 modelhalf.dat Got (...) (16 years ago, 29-Mar-09, to lugnet.cad.mlcad)
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