Eric, there is a way around this, but I have to check to see if there is a
bug there. The issue is that the zoom command also recenters. The solution
is to do the moveto command with the same orientation:
var q = script("show orientation rotation")
moveto quaternion @{!q} 100 0 10
That sets the orientation to the current orientation and zooms to 100% at a
translation of 10% in y.
All in one go it looks like:
moveto quaternion @{!script("show orientation rotation")} 100 0 10
Bob
You have the echo background, so that should do it. So I'm not catching on
to the problem, I think.
To test, what I did was this:
load 1crn.pdb
center 1
now I zoomed out so that it was just a spot. With CTRL-ALT, I moved the spot
to wherever I wanted. That's the center of zoom. Now zooming out, it is
rotating about residue 1 at that screen position. I'm pretty sure that's
what you are after.
Is it just that you haven't figured out how to do that with a script?
I see in the state script:
moveto 0.0 { 997 -20 73 172.8} 134.42 -11.6 34.33 {17.231571 12.934429
4.9705715} ...
134.42 is the zoom; -11.6 34.33 are the x and y translations in screen
percent.
Really that should do it. You want something like:
moveto 0.0 { 997 -20 73 172.8} 100.0 0 10 {17.231571 12.934429 4.9705715}
(zoom is 100%, x-translation 0%, y-translation 10%, center model on residue
1)
Bob
--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
Northfield, MN 55057
http://www.stolaf.edu/people/hansonr
phone: 507-786-3107
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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