# [Xy-pic] uniform (but different) row and column spacing (fwd)

Les Saper saper at math.duke.edu
Mon Aug 21 02:51:05 CEST 2006

```Let me retract the very last sentence of my post; @R=1cm @C=1.5cm @!0 is
indeed an acceptable work-around.

However the remainder of my post still stands: is the observed
behavior of  @!R=1cm and @!C=1.5cm a bug?

- Les Saper

On Sun, 20 Aug 2006, Les Saper wrote:

> According to the Xy-Pic reference manual, the code @!R=<dimen> should give
> uniform row spacing by pretending that all entries have height and width
> <dimen> (of course only the height matters here).  Likewise @!C=<dimen>
> should affect column spacing.  Thus it should not matter in which order the
> two codes are given.
>
> Consider the following two xymatrices (the code @=0pt means there will be no
> extra space between columns and rows):
>
> \xymatrix @=0pt @!R=1cm @!C=1.5cm {
> {\bullet} & {\bullet} \\ {\bullet} & {\bullet}}
>
> \xymatrix @=0pt @!C=1.5cm @!R=1cm {
> {\bullet} & {\bullet} \\ {\bullet} & {\bullet}}
>
> They should produce identical non-square rectangles of dots, 1.5cm x 1cm.
> Instead each produces a square of dots, the first one 1.5cm x 1.5cm and the
> second one 1cm x 1cm.  What appears to be happening is that the second of the
> two codes is overring the first and it is applying to _both_ columns and
> rows.
>
> Is this a bug?  Or have I misinterpreted the documention? If the latter, can
> someone suggest how to accomplish what I want?  (Note that I need to have the
> entries retain their true sizes to have arrows begin and end at the right
> places, so @R=1cm @C=1.5cm @!0 is not an option.)
>
> Thanks,
>
> Les Saper
>
> -----------------------------------------------------------
> Leslie Saper                    e-mail: saper at math.duke.edu
> Department of Mathematics       phone: 919-660-2843
> Duke University                 Fax: 919-660-2821
> Box 90320
> Durham, NC   27708-0320
> USA
>
>
>
```