Subject:
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Re: View matrix used for default 3D view expressed in LDLite terms
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Newsgroups:
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lugnet.cad.mlcad
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Date:
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Mon, 22 Oct 2001 13:14:59 GMT
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Viewed:
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2726 times
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In lugnet.cad.mlcad, Larry Pieniazek writes:
> Does anyone know the values for the default 3D view that MLCad uses
> expressed similar to
>
> -A0.63,0.00,1.08,0.54,1.25,-0.31,-1.25,0.00,2.50
>
> (this is the parm string to LDLite that gives you "Natural" if you selected
> it from the LDLite view selection pulldown)
>
> It's not Natural and it's not Oblique, I don't think.
We had a discussion about the "natural" and "oblique" matrices about
a year ago where it turned out the "natural" matrix did some rather
UN-natural shearing.
http://news.lugnet.com/cad/dev/?n=5362
Perhaps mlcad is using this matrix:
0.5,0,0.866025,0.433013,0.866025,-0.25,-0.75,0.5,0.433013
Which is a 60 degree rotation about y followed by 30 about x.
Just a guess though...
Have fun,
Don
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