[Chimera-users] access rotation and translation matrices

Hello, I have been trying to rotate a large volume relative to a reference volume using the vop resample command. The problem is that both volumes are nearly 2GB. However, If I were to bin the volumes (by n) and had access to the rotation R(alpha, beta, gamma) and translation T(x,y,z) matrices I could perform the rotation in an alternate program via R and nT. Thanks! Lori