Subject:
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LD-Lite Rotation Matrices?
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 8 May 2002 01:31:56 GMT
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Viewed:
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443 times
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I have been using a matrix (-a-1,0,1,-0.5,-1,-0.5,1,0,1) for rendering
upside down images with LD-Lite. It works fine with one issue: The rendered
image is also rotated 180 degrees around the Y axis (assuming X horizontal,
Y vertical, and Z out of the page). Anyone have a matrix that will turn the
image upside down without rotating it?
I did a search of the lugnet.cad.* hierarchy and while I found lots of
discussion rotation matrices, I didn't find an answer to this question.
Thanks,
Mike
--
Mike Walsh - mike_walsh at mindspring dot com
http://www.ncltc.cc - North Carolina LEGO Train Club
http://www.carolinatrainbuilders - Carolina Train Builders
http://www.bricklink.com/store.asp?u=mpw - Brick Depot
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Message has 2 Replies:
 | | Re: LD-Lite Rotation Matrices?
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| (...) How about this? ldglite -v3 -a-1,0,-1,0.5,-1,-0.5,-1,0,0 file.dat (23 years ago, 8-May-02, to lugnet.cad)
| | | Re: LD-Lite Rotation Matrices?
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| (...) Try one of these, maybe they'll work: -a1,0,-1,-0.5,-1,-0.5,-1,0,-1 -a-1,0,1,0.5,1,0.5,1,0,1 Otherwise, fire up your favorite LDraw file editor, set up a 1-part file (I'd use something like 3626bp01, the minifig head). Set your view to Front. (...) (23 years ago, 8-May-02, to lugnet.cad)
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