Hi Melchior,

thanks for the info. I will try to make use of this with the yasim gears.

Maik


Melchior FRANZ schrieb am 20.12.2006 00:56:
> * Maik Justus -- Wednesday 20 December 2006 00:47:
>   
>> does anyone know, how to access the ground properties by the FDM?
>>     
>
> Looks like the groundcache provides this:
>
> bool
> FGGroundCache::get_agl(double t, const SGVec3d& dpt, double max_altoff,
>                        SGVec3d& contact, SGVec3d& normal, SGVec3d& vel,
>                        int *type, const SGMaterial** material, double *agl)
>
>
> The ground cache is already used by JSBSim and YASim for gear contact.
> See simgear/scene/material/mat.hxx for SGMaterial. It has methods to
> read friction/bumpiness/...
>
> m.
>   


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