[Chimera-users] How to accurately and proportionally adjust structure size

Tom Goddard goddard at sonic.net
Wed Nov 2 13:09:59 PDT 2016

To compare sizes precisesly you also probably want to use orthographic projection instead of persepective projection, so more distant features don’t appear smaller than closer features.  The Chimera command to set this mode is

	set projection orthographic


> On Nov 2, 2016, at 12:59 PM, Elaine Meng <meng at cgl.ucsf.edu> wrote:
> Dear Xiaoyan Zhu,
> This previous post with some Python code may be the answer:
> <http://plato.cgl.ucsf.edu/pipermail/chimera-users/2005-May/000369.html>
> However, I see it is rather old (2005), so maybe the programmers can comment on whether this should still work.
> I hope this helps,
> Elaine
> ----------
> Elaine C. Meng, Ph.D. 
> UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
>> On Nov 2, 2016, at 10:20 AM, Zhu, Xiaoyan <xiaoyan.zhu at marquette.edu> wrote:
>> Hello,
>> I am trying to compare the cryoEM structures of radial spoke from different organisms. In the mean time, I want to display the same structure from different views. 
>> I have trouble to adjust the size accurately and proportional within the same and between different models.​
>> For example, when I adjusted the structure from distal view and then rotated to the proximal view, the distance from screen changed and so the size changed. If I manually adjust the structure after rotation, I don't know how to make the structures from both views identical size.
>> Similar thing troubles me when I want to adjust the size of two independent structures proportionally.
>> Hope I made myself clear.
>> Thank you a lot!
>> Xiaoyan Zhu 
>> Ph.D. Candidate 
>> Department of Biological Sciences, Marquette University
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