[Bf-python] problem getting IK solvers informations from script

[nagash at free.fr]

Hi, 
I try to write an export script that can export bones animations using 
IKsolvers but it seems that neither IPO curves nor getLoc/getQuat on bones give 
the modification due to IK resolutions. 

In fact, between two key frames, some bones have moved because of others have. 
I don't know how to get this movement or how to compute it (maybe just need 
to multiply by the IK matrix if i can't get it...I'm beginner at blender python 
scripting). 

If anybody have a solution or an idea, please help me. 

Thanks
--
Julien