Subject:
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Re: Quick way to mirror-image a model?
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Newsgroups:
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lugnet.cad
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Date:
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Thu, 17 Jun 2004 19:21:53 GMT
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Viewed:
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1932 times
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In lugnet.cad, Dave Schuler wrote:
> For simple mirroring of the parts from left-to-right. This only works for parts
> oriented along the X, Y, and Z axes. If parts are rotated at odd angles (like
> 30 degrees, or whatever), then this won't quite work, but it should get you
> started.
> (snip)
Thanks for the responses--they were very helpful. I found the disadvantage to
Don's rotation matrix method to be that when it's used the mouse commands in
MLCad are reversed, i.e., dragging the part left moves it right--but it sure
worked great for a quick way to show the assembled model correctly.
Dave, I tried your method in Excel and it appears to work with some caveats,
though I don't really understand the column mappings:
For left-to-right, you said to use columns D and G--that's corresponding to the
Y position and the B rotation parameter. Shouldn't that be the X position and C
parameter?
Parts such as slopes & 2 x 2 corners aren't in their correct orientation--any
tips on how to get those right?
(Actually, is there a tutorial on the rotation matrix anywhere? That might
answer all my questions in one.)
Thanks!
Carl
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Message has 1 Reply:
 | | Re: Quick way to mirror-image a model? [DAT]
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| (...) You know, I think you're correct about that. I think I'm the last person who still uses LEdit as his primary LDraw platform, and for reasons of my own I always orient my parts and models rotated 90 degrees relative to the true LDraw standard (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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Message is in Reply To:
| | Re: Quick way to mirror-image a model?
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| (...) The way I usually do this is clunky, but it basically works. It also requires a little familiarity with MS Excel and some kind of text editor, as well as an understanding of the LDraw DAT-file format. Create a backup of the MOC file. Open the (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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