Subject:
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Re: LDGlite and LPub
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Newsgroups:
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lugnet.cad.dev
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Date:
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Tue, 26 Oct 2004 04:46:19 GMT
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Viewed:
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2122 times
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In lugnet.cad.dev, Don Heyse wrote:
> In lugnet.cad.dev, Travis Cobbs wrote:
> > In case you don't want to think about the math, here it is:
> >
> > vfov = 2*atan(tan(hfov/2)/(width/height))
>
> See, this is why ldview is so much better. I'm still trying to absorb
> the first post and you whip out the math.
I thank you for the complement, but in this particular instance, I have to give
credit where credit it is due. I'm sure I could have derived the above equation
on my own, but here is the actual comment out of LDView that I got the above
from:
// From Lars Hassing:
// Vertical FOV = 2*atan(tan(hfov/2)/(width/height))
The orginal source was here:
http://www.hassings.dk/l3/l3p_ca.html
--Travis
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Message has 1 Reply:
 | | Re: LDGlite and LPub
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| (...) aspect ratio is always maintained even if the (horizontal) viewing angle is changed"? Does l3p not allow tall skinny windows? Should (width/height) always be (4/3) even if the window is tall and skinny? Or does it just mean the pov file will (...) (20 years ago, 26-Oct-04, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: LDGlite and LPub
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| (...) See, this is why ldview is so much better. I'm still trying to absorb the first post and you whip out the math. Ok, apparently I knew about the horizontal/vertical bit at one point because the code to print an l3p command line contains this (...) (20 years ago, 26-Oct-04, to lugnet.cad.dev)
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