Re: Query about Scenery Load

senthil kumar wrote:

>
> Hai,
>
> I am using flightgear-0.9.4. In code, I would like to change the 
> location of Runway. How can I do it?
> I thought that gbs points of OBJECT_BASE is used for positioning 
> Runway, but when I delete OBJECT_BASE in .stg file, the Runway is 
> placed in correct position. How it happens?

OBJECT_BASE is the terrain tile
OBJECT's are airports

> And I know that gbs points in runway btg (eg KSFO.btg) are not used 
> for positioning.

The gbs locates the center point of the OBJECT_BASE or OBJECT. All 
vertex's in the .btg files have gbs subtracted from them making them 
offsets relative to the gbs.

> Can you please explain how sceneries are displayed, which function 
> display the terrain and runway and which function position the terrain 
> and runway….
> Regards,
> M.Senthil Kumar
>
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