[SciPy-user] Rotate volume data and regrid?

Hi scipy-experts, I have a 3D array (180x200x200 elements) that represents a 3D volume in space. I want to rotate the data in this array by an arbitrary amount around an arbitrary point inside the volume, then re-grid the result back into the original voxels. Does anyone know of a scipythonic or numpythonic function, package, or even an algorithm to achieve this? -best Gary