Re: [Stellarium-pubdevel] Horizon position

[Matthew G. <mat...@gm...>]

In version 0.10.0, adjust the view as you like it, then open the
config dialog and click the save button.  The field of view and
direction of view will be saved and used when Stellarium is
re-started.  The settings for initial direction of view and field of
view which are written to the config.ini can then be copied to a 0.9.1
config file if you want to use that version of Stellarium. The value
is a vector whose meaning is not very clear to the end user -  I think
this method is the easiest way to get a value you are happy with.

When the horizon is near the bottom of the screen, the edges will
always be curved upwards with stereographic projection (and azimuthal
mount).  If you want a straight horizon, placed at the bottom of the
screen you should use perspective projection (I think, I don't have
Stellarium to hand right now, and I'm not 100% sure which one it is).

If you mean that you want to create a landscape which covers less than
the region where azimuth is below 0 degrees, it depends on the
landscape type.  However, if you do this more than a few degrees, you
will start to see weird mirroring effects with the atmosphere around
dawn and dusk.

P.S.  This sort of general usage question is probably better posted in
the forums or a support request, as it is not really a development
topic (unless I have misunderstood your meaning).

2008/10/31 Steve Ingamells <st...@in...>:
> Hi,
>
> I have asked this before, but never got to a satisfactory conclusion, mainly
> because I had other stuff to deal with. I have gone over the source as best
> I can but I can't see where the "horizon" position is set...
>
> The reason is that we want to show more sky and less ground, while keeping
> the horizon as horizontal as possible, at least in the initial view, in the
> stereographic projection.
>
> There appears to be no way to move the horizon down the screen - the edges
> of the horizon are always at the middle of the screen.
>
> Viewport_y setting does nothing as far as I can tell...
>
> Any suggestions?
>
> Best regards,
> Steve
>
>