Re: [Flightgear-devel] What does control gear/gear[0]/position-norm property in A-10?

[Roberto I. <ro...@gm...>]

>> I'd like to simply bind the press of a key to a custom animation (a
>> rotation around an axis at a fixed speed, between two extreme positions,
>> in both directions), can you point me to a simple/basic example?
>>     
>
> You can use the nasal "interpolate" function to do that if I understand you 
> correctly.  You can write a nasal function using interpolate to manipulate 
> any property you want and call it from a keybinding (see for example the 
> beaufighter gunsight & door toggle functions.)
>
> Cheers,
>
> AJ
>   

Thank you AJ, that was the right hint :-)
The beaufighter door animation is the one I needed, simple and 
effective. Now, I have a fully working rotate animation and proper key 
bindings.

I have to point out the beaufighter toggle_cdoor function is not 
completely correct (it doesn't work right if you toggle the animation 
while the door is already rotating). I had to change it a little bit in 
order to get it at constant speed. But that was a very solid point to 
start from; now I know a little how to write such animation nasal 
scripts :-) I whish there were more NASAL tutorials around.

  cheers,
    Roberto