[ODE] Object speed

[Alexandre Ribeiro de Sá]

AHOY!

I have a small question, how can I get the speed from a object?
I made this test... but... I don't know... the result is too... -_-'... 
hehehehe
        if( BodyPos.posX < 0 ) BodyPos.posX * -1;
        if( BodyPos.posY < 0 ) BodyPos.posY * -1;
        if( BodyPos.posZ < 0 ) BodyPos.posZ * -1;

        Speed = ((BodyPos.posX + BodyPos.posY + BodyPos.posZ)/3 - OldPos);
        OldPos = (( BodyPos.posX) + ( BodyPos.posY) + ( BodyPos.posZ)) / 3;


Thx
Alexandre Ribeiro de Sá