[Flightgear-devel] ground properties, was Re: osg/plib, difference in collision detection

[Maik J. <mj...@gm...>]

Hi,

does anyone know, how to access the ground properties by the FDM?

Maik

Detlef Faber schrieb am 10.12.2006 14:14:
> Am Sonntag, den 10.12.2006, 10:37 +0000 schrieb Stuart Buchanan:
>   
>> --- syd wrote:
>>     
>>> Another feature that would be nice would be a scenery texture
>>> detection system ....
>>> Land on forested area, city,etc,  should cause a crash ...
>>> Water and ocean should cause a crash unless your flying an amphibian...
>>> Farms , grass ,tundra should be safe ....
>>> As it is now , I get careless because I know if I miss a runway or
>>> runout of fuel, I can just taxi back to it (through the forest)...
>>>       
>> You might want to take a look at materials.xml. It defines some
>> interesting properties that might make things more realistic for you -
>> friction-factor, rolling-friction, bumpiness, load-resistance. These
>> should affect the ground-handling of the aircraft, and may also affect
>> landings enough to "discourage" an off-runway landing. 
>>
>> The properties may be FDM specific though.
>>
>>     
> I have to admit I didn't know that. But it seems there is no FDM that
> actually uses those properties (The <solid> tag for all water surfaces
> is "false", but yasim,jsbsim and uiuc will happily land on water).
>
> Is there any possibility to access these properties via the property
> browser, to process these values via nasal? 
>
> Greetings
>
> Detlef
>
>
>   
>> -Stuart
>>
>> Send instant messages to your online friends http://uk.messenger.yahoo.com 
>>
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>   
ground properties,