Chimera Commands Index
cofr [ view | models | front | independent | fixed ]
[ atom-spec |
x,y,z [ coordinateSystem N ]]
If no arguments are supplied,
cofr reports the coordinates of the current center of rotation
in the laboratory frame of reference. These values are also reported in
the Rotation tool.
The center can be shown with “+” crosshairs in the
with the command set showCofR.
The keyword options specify
center of rotation method:
The remaining options specify a particular fixed center of rotation.
can include any combination of
the center of rotation will be set to the center of the bounding sphere
of the specified items. Alternatively, the center can be entered as
coordinates x,y,z in a specified coordinate system.
The coordinateSystem can be specified
by reference model number N, optionally preceded by #;
otherwise, the laboratory frame of reference will be used.
- view - continually adjusting to the current center of view
- models - the center of models method:
center of the bounding sphere of the displayed parts of
- front - the front center method
(also specified with ~cofr): when the view is zoomed out,
behaves like center of models;
when the view is zoomed in on parts of objects,
behaves like center of view, except the center of rotation
depth (Z-coordinate) is set to that of the frontmost displayed
unclipped atom whose VDW sphere intercepts a line perpendicular to the
screen in the window center.
The center is not updated when only rotations are performed.
- independent - each model rotating about its own center rather
than a single collective center; can also be specified with
the command set independent
- fixed - at a fixed point relative to the model(s)
(changes only the method, retains the current center)
The center of rotation can also be controlled with
the Rotation tool.
Set Pivot and
Focus in the