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question about the angle of full radiance output   Message List  
Reply | Forward Message #26 of 91 |
Re: question about the angle of full radiance output


So in the full radiance output file, if the radiance is just below
the water surface (like say 0), the angle in that radiance table
(theda and phi) should be referring to under water angle while the
angle for the above surface (like say -1) radiance should be in the
air. Am I right?

Thanks
--- In HydroLightUsers@yahoogroups.com, Curtis Mobley
<curtis.mobley@...> wrote:
>
> The directions in H are defined by the partitioning of all
directions
> into "quads", as shown in Fig 2 of the Users Guide, and as
described in
> section 2.4 of the Users Guide. These directions/quads are the
same
> above and below the sea surface. Thus, for example, if the sun is
in a
> particular quad above the surface, its refracted beam will be in a
> different quad below the surface (for a level surface). Let me
know if
> this doesn't answer your question.
>
> Curt
>
> cindyzju wrote:
>
> >
> > If I use the full radiance output setting, the angle I get is
below
> > the water or in the air or depends on the which depth I am
gettting
> > from?
> >
> > thanks
> >
> >
>
>
> --
> -----------------------------------
> Curtis D. Mobley, Ph.D.
> Vice President and Senior Scientist
> Sequoia Scientific, Inc.
> 2700 Richards Road, Suite 107
> Bellevue, WA 98005
> voice: 425-641-0944 ext 109
> fax: 425-643-0595
> email: curtis.mobley@...
> WWW: www.sequoiasci.com
> personal: www.curtismobley.com
> -----------------------------------
>





Tue May 8, 2007 9:13 pm

cindyzju
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Message #26 of 91 |
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If I use the full radiance output setting, the angle I get is below the water or in the air or depends on the which depth I am gettting from? thanks...
cindyzju
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May 8, 2007
4:27 pm

The directions in H are defined by the partitioning of all directions into "quads", as shown in Fig 2 of the Users Guide, and as described in section 2.4 of...
Curtis Mobley
hydrolightman
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May 8, 2007
5:21 pm

So in the full radiance output file, if the radiance is just below the water surface (like say 0), the angle in that radiance table (theda and phi) should be...
cindyzju
Offline Send Email
May 8, 2007
9:14 pm

Correct. Thus a direction of theta = 45 deg, phi = 90 deg, is the same direction either above or below the surface. The theta,phi coordinate system does not...
Curtis Mobley
hydrolightman
Offline Send Email
May 8, 2007
9:36 pm
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