Thanks Markus,<br>I'll try and see if it this way can clear up my theoretical-doubts.:)<br><br>Annalisa<br><br><div class="gmail_quote">2009/7/15 Markus Neteler <span dir="ltr"><<a href="mailto:neteler@osgeo.org">neteler@osgeo.org</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi Annalisa,<br>
<div><div></div><div class="h5"><br>
On Tue, Jul 14, 2009 at 9:36 AM, Annalisa Minelli<<a href="mailto:annagrass6@gmail.com">annagrass6@gmail.com</a>> wrote:<br>
> Hello All,<br>
> I'm trying to do some simulation of view in NVIZ and I have to look an<br>
> object at a fix distance from a fix point.. so I usually use the "position"<br>
> panel (where I can set coords and elevation of the two points) but sometimes<br>
> it happens that when you obtain this view you see some white space under<br>
> your "feet" so I tried to avoid this modifying the perspective parameter<br>
> (slide in the main panel).<br>
> Doing this I noted that if I modify the perspective parameter the distance<br>
> of observation changes; what does this angle represent? who can explain me<br>
> its specific meaning? and why if I increase/diminish it the observed object<br>
> goes/comes far/near?<br>
<br>
</div></div>the tcltk nviz isn't "the future", perhaps you could try the new nviz based<br>
on python? It can be controlled via command line which might help a lot.<br>
<font color="#888888"><br>
Markus<br>
</font></blockquote></div><br>