*
object form described above can be used to space
individual objects differently, however, it is also possible to
change the overall spacing of a matrix by inserting the
following codes between \xymatrix
and the following {
:
@= dimen | set spacing |
@R= dimen | set row spacing |
@C= dimen | set column spacing |
@! | uniform spacing |
@!R | uniform row spacing |
@!C | uniform column spacing |
In the first three you can use the operators +
, +=
,
-
, and -=
, instead of =
with the same meaning as in
section 2.2, i.e., replace `set' with `increase',
`increase to at most', `decrease', and `decrease to at least',
respectively. For example,
$\xymatrix@1@=0pt@!{A&B\\ C&D}$
in the text typesets .
Finally a special notation allows rotation of an entire matrix:
@ d | rotate towards d |
Only the matrix grid will rotate, however, not the actual contents.