Chimera Commands Index
[ offset default | x,y,z ]
Label displays labels for all atoms in
The default label information is atom name with any alternate location ID
appended, but can be changed with
to element, atom type, or another
atom attribute, or even to
residue information (note rlabel
shows residue labels, as opposed to atom labels with residue information).
~Label removes atom labels.
Label font and size can be set in the
By default, the offset of a label is automatically adjusted
based on the display style
of the corresponding atom. The offset keyword allows specifying
an absolute offset that will not be adjusted, or a return
to the default behavior. The word default
can be truncated. An absolute offset is specified by
three comma-separated values x,y,z representing distances along the
X-, Y-, and Z-axes in the laboratory coordinate system:
Negative distances can be used. Label offsets can also be adjusted
with the mouse.
- the X-axis is horizontal in the plane of the screen,
increasing to the right
- the Y-axis is vertical in the plane of the screen, increasing upward
- the Z-axis is perpendicular to the screen, increasing outward
(toward the viewer)
Various labeling tasks require approaches other than label:
the Actions menu,
- to label an atom with arbitrary text,
select the atom and either
choose Actions... Label... other...
and enter the desired text, or
open the Selection Inspector
and enter the desired text in the label field
- to label a bond or pseudobond,
select it and use the
to create or change its label
- to show temporary "balloon" labels, useful
for quick identification of an atom or bond:
set Show atomspec balloon in the
General preferences to
true (default) and place the cursor over the atom or bond of interest.
The label information will appear and remain until the cursor is moved away.
- to create arbitrary labels independent of any displayed items, use