Xy-pic User's Guide: Next: 2.6 Changing the target. Up: 2 More Arrows and . Previous: 2.4 Sliding arrows sideways.

## 2.5 More targets

The target address can be given in a large number of formats called positions. The full range of possibilities is described in the reference manual [8]; here is a number of useful ones in addition to the hop format described in section 1.3:

- , where r,c are integers, denotes the relative entry found r rows below and c columns to the right of the current entry (the current entry itself is thus `[0,0]`). This always corresponds to a `[`hop`]`, e.g., `[1,2]` is the same as `[drr]` and `[-2,0]` is the same as `[uu]`.

- , where r,c are positive integers, denotes the absolute entry found in the rth row and cth column of the diagram. The top left entry is `"1,1"`.

- , where is any target, changes the base entry of the present arrow to and then sets the target to t relative to the original base. For example,

  >     \xymatrix{
  >      A \\
  >      B & C \ar@<1ex>[ul]
  >            \ar@<1ex>[ul];[] }

  typesets

  i.e., the second `\ar[ul]` arrow starts at the `[ul]` entry and ends in the current entry.

See section 3.5 for how to use a label as a target.

Xy-pic User's Guide: Next: 2.6 Changing the target. Up: 2 More Arrows and . Previous: 2.4 Sliding arrows sideways.