Re: [savi-users] 1.32a vs 1.40

[<L....@su...>]

Greg,

can you describe in detail the problems you saw with the October snapshot? I thought I was down to a cosmetic error in updating the list; it might be something I've missed, and need to know about.

thanks,

L.

<http://www.ee.surrey.ac.uk/Personal/L.Wood/><L....@su...>



-----Original Message-----
From: Greg [mailto:gr...@o3...]
Sent: Thu 2008-12-04 19:08
To: Wood L Dr (Electronic Eng)
Cc: sav...@li...
Subject: RE: 1.32a vs 1.40
 
FYI:	Still have problems on the October snapshot, back to 1.3.2a 

Building the new geomview takes a few new library's, cant remember which ones, but I think glib was one of them.

Greg

-----Original Message-----
From: Lloyd Wood [mailto:L....@su...] 
Sent: Monday, November 24, 2008 5:00 PM
To: Greg
Cc: Lloyd Wood; sav...@li...
Subject: Re: 1.32a vs 1.40

On 24 Nov 2008, at 14:25, Greg wrote:

> 1)      I also tried 1.4.0a, it had the same issue

yes - that was a cosmetic change to the configure script during  
packaging (something I forgot to do for 1.4.0), and not a functional  
change.

The 25 October snapshot I mentioned should perform better and fix most  
of the editing issues.


 > 2)      Regarding O3b, the orbits are 288 minutes (4.8 hours / 5  
per day).

That's an altitude of 8075.5 km - different from the Space News report  
(8000km) and the Sea Launch press release (7825 km). Is there a  
citable source for this?

(You'll probably find that repeating an exact number of times per day  
is considered undesirable for interference reasons; ICO had to tweak  
their altitude to avoid this.)


>  4)      Is there any way to change the content of the  
> "constellation" menu item? It seems to pull from the /data  
> directory, but I did not see where it populated the items.

look in savi/tcl/main.tcl at proc main(constellations_menu).

Since this is in tcl and can be edited before runtime without needing  
to recompile savi, there's not much point in having e.g. an external  
tabbed list to read in to build the menus.

I'm considering redoing the menu to move the not-well-known systems  
off to to a More... option that pulls up a subdirectory. Suggestions  
on what's preferred welcome.


> 5)      Is there any way to change the base map (either in Geomview  
> or the 2d map?)

savi/maps has the bitmaps for 2D coverage; notes on how those were  
created are at the
bottom of the README-COVERAGE-TEXTUREMAPPING textfile.

The 3D continents for Geomview are in savi/oogl/earth.vect which  
includes comments of origin.

It would be good to have an up-to-date map dataset that could be used  
to generate consistent 3D vectors and 2D bitmaps.

L.

SaVi satellite constellation visualization: http://savi.sf.net/

<http://info.surrey.ac.uk/Personal/L.Wood/><L....@su...>