Michael Selig <[EMAIL PROTECTED]> said:

> Chase views:
> 
> [1] One view like the old one, but minus the sway that was due to 
> sideslip.  In this case the horizon on the screen is always level.  (I 
> don't think the new chase view behaves like this.  The horizon is not 
> level, it rolls w/ the aircraft.)
> 

Actually only the pitch is applied to the model.  The roll is not.  From the
side it does look a little funky. In relation to the horizon, the pitch angle
gets doubled.

> [2] What would be seen from a following aircraft.  In this case, the 
> horizon will move like it does on the HSI.  The final view will look very 
> much like the current cockpit view minus the instruments but w/ the 3D 
> model of the aircraft shown.
> 

Hmmm...try setting the z-offset to -25.0 in the pilot view.

> [3] A lagged version of [2].  Not as important, but neat.  It would 
> effectively show what one would record from a video camera in the chase 
> plane. The 3D model of the aircraft will not always be centered on the 
> screen.  In extremely rapid maneuvers, the 3D model might even move off of 
> the screen (out of the camera field of view).
> 
> It seems that to do 2 and 3, the aircraft trajectory history (so many feet 
> of flight path trajectory) needs to be saved and used by the viewer code.

Yes, some sort of fifo buffer would work.

> Tower view:
> 
> [1] One version w/ the view positioned at the end of the runway and 
> slightly behind and above the aircraft, looking down on the aircraft.  This 
> view is extremely useful for testing new-aircraft nonlinear-aero 
> models.  It's hard to judge stall and other extreme maneuvers from the 
> cockpit, but from the tower one can gauge these things pretty well.
> 
> [2] Another from the tower at the particular airport.
> 
> Maybe the latest code can already do these things w/ input via xml(?).
> 

Almost.  It should by the end of the week, maybe sooner.  Once I have the
basic viewer xml configuration setup, I will probably be expanding it to allow
quite a lot of control via xml configs.

Best,

Jim

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