[Chimera-users] radial density map

Hi all, I have a mrc map of virus, T=7 icosahedron. Does anyone know how to make radial density map (averaged radial density VS radius of virion)? I tried chimera method of shortcut rd. It took long time but return one result. For the rd result, is it make along x, y or z axis? Or along assigned axis, like 5 fold symmetric axis? I have asymmetric extra density around 5-fold axis. What will happen in my case if use rd? Are there any other ways to make the plot besides of rd? Thank you so much. Sincerely yours, Jian