joints

is there some documentation about joints?

i would like to create an axle and something thats spins around the axle?
which type of joint should i take?

walabar you must know this ????

you do know about the OgreNewt::veichle class right?

yes of course, i'll show you the problem
it's not for a wheel, but i found a sollution:
OgreNewt::BasicJoints::Hinge

the reason why i need an axle: see the picture, i would like this to rotate free (so using steering from the tire class is not a sollution)



the next problem:
for now, the whole black piece is the chassis of the vehicle

but if i would like to use joints my chassis woul have different scenenodes is that possible ? and how ??

you need to make the mesh into seperate pieces (rigid bodies): the "board" the "wheel mounts" and the "wheels".

connect the "wheel monuts" to the "board" with a hinge (pin = UNIT_Y)

connect the "wheels" to the "wheel mounts" with another hinge (pin = UNIT_X or UNIT_Z)

my wheel mount is ok !



but i dont know how i should get the tire to this wheel mount,
i use the standard tire class,

Tire (OgreNewt::Vehicle *vehicle, Ogre::Quaternion localorient, Ogre::Vector3 localpos, Ogre::Vector3 pin, Ogre::Real mass, Ogre::Real width, Ogre::Real radius, Ogre::Real susShock, Ogre::Real susSpring, Ogre::Real susLength, int colID=0)

explain simple plz (if the sollution is difficult),

thx for previous help

as scene as it isnt a veiecle you could just add a joint, try newton playground to find what joint you need

yeah, you can't use the vehicle tires like that outside of the vehicle system. so for this you will need to use a chamfer cylinder shape for a standard body as your wheel.

k, that might be a sollution,
but then i have the problem that my wheels in the back have a suspension and the wheel in the front not, i think that would give a strange behavior off the vehicle, but i'll try it,

i thougt mayby to define the wheel mount as a vehicle, and then it would be possible to attack the tire, but that isnt possible probably ?

why not remove the vehicle altogether and just use joints? the object you show wouldn't have any suspension in reality anyway...