yade-users team mailing list archive

Thread
Date

Is there a way to record the total rotated angle (rotational displacement) for the spheres?

To: yade-users <yade-users@xxxxxxxxxx>
From: "Feng, Chen" <fchen3@xxxxxxx>
Date: Sat, 14 Jan 2006 16:10:36 -0500
Delivered-to: janek_listy@xxxxx
Reply-to: yade-users@xxxxxxxxxx
Sender: yade-users-admin@xxxxxxxxxx

Like in the positionOrientation recorder, the position of the sphere can be 
obtained through: tx = b->physicalParameters->se3.position[0]...
How to record the angular position of the particle itself?
Since I want to implement a displacement convergence criterion, which will use 
the following equation:

             ||D[i]-D[i-1]||
Tolerance = _________________ < eps
               ||D[i-1]||

The ||D[i]|| is the Elclidean norm, therefore I think both the translational 
displacement and rotational displacement should be recorded, the translational 
displacement can be recorded through b->physicalParameters->se3, is there any 
variable record the rotational displacement in RigidBodyParameters? Or I can 
have a way to implement it? 
THanks a lot

With best regards,

Feng, Chen
______________________________________________________________________
Graduate Student
Department of Civil and Environmental Engineering
University of Tennessee, Knoxville
(865) 974-4835 (Office)
______________________________________________________________________

_______________________________________________
Yade-users mailing list
Yade-users@xxxxxxxxxxxxxxxx
http://lists.berlios.de/mailman/listinfo/yade-users