Re: Implementing view

[logari81]

On Mon, 2010-11-08 at 08:39 -0600, Jordi Gutiérrez Hermoso wrote:
> While attempting to run some old Matlab code of mine, I ran across
> scripts/plot/view.m and its partial implementation. This seemed like
> low-lying fruit, so I started implementing it fully, but I'm a little
> confused about view matrices.
> 
> Matlab behaves something like this, according to help I got in the
> #octave channel:
> 
>      http://matlab.pastebin.com/1kup33S5
>      http://matlab.pastebin.com/g6K3eFTm
> 
> I've been trying to figure out exactly what is it doing. I can
> understand the rotation part of the matrix, but why is there also a
> translation, and why does this translation change if you change the
> azimuth and elevation? If someone can figure this out, please let me
> know.
> 
> Thanks,
> - Jordi G. H.

Hi, have you seen the following matlab documentation?

http://www.mathworks.com/help/techdoc/ref/viewmtx.html

it seems quite complete. If I 've understood right, the only feature
missing in the actual view implementation in octave is the possibility
of returning the transformation matrix T. Is this correct?

BR

Kostas