On Aug 25, 2015, at 6:16 PM, Smith Liu <smith_liu123@163.com> wrote:

Dear Elaine, Here there is a sentence "a particle has a diameter of 100 pixels and the width of the reconstruction box is 256 pixels". Will you please tell me by Chimera how can I know the diameter of the particle and the width of the reconstruction box, as described in the cited sentence?

I am looking forward to getting a reply from you. Best regards. Smith

Dear Smith, It is recommended to send Chimera questions to chimera-users@cgl.ucsf.edu (CC’d here) instead of to me directly. I don’t know where that sentence came from, so I’m not even sure it is a Chimera question. By “pixels” maybe the authors mean grid units. They probably just knew this about their own data without trying to get it from Chimera, but at least for the width of the box, you can see the grid dimensions just to the right of the dataset name in the Volume Viewer dialog. <http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/volumeviewer/framevolumeviewer.html> Best, Elaine ----- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco