Subject:
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Re: 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 14:12:44 GMT
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Viewed:
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523 times
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"Don Heyse" <dheyse@hotmail.spam.go.away.com> wrote in message
news:Gvso1G.9w5@lugnet.com...
> In lugnet.cad, Mike Walsh writes:
> > 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.
>
> How about this?
>
> ldglite -v3 -a-1,0,-1,0.5,-1,-0.5,-1,0,0 file.dat
That is very close to what I am looking for, it just needs an additonal
rotation.
Take a look at this page:
http://www.carolinatrainbuilders.com/sneakpeak.htm
The first image is the default view. The second is generated with the
matrix I have been using for upside down images (appears above in my
original message). The third image was generate with Don's matrix. What I
am hoping to accomplish is to get my upside down image generated with the
same model orientation as I have in the default image (nose of the truck in
the lower right hand corner of the image).
Thanks for your help.
Mike
--
Mike Walsh - mike_walsh at mindspring dot com
http://www.ncltc.cc - North Carolina LEGO Train Club
http://www.carolinatrainbuilders.com - Carolina Train Builders
http://www.bricklink.com/store.asp?u=mpw - Brick Depot
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Message has 1 Reply:
 | | Re: LD-Lite Rotation Matrices?
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| (...) Maybe this is it? l3glite -v3 -a1,0,-1,0.5,-1,0.5,-1,0,-1 file.dat Don (23 years ago, 8-May-02, to lugnet.cad)
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Message is in Reply To:
| | 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)
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