On 29/06/2019 17:24, Paul A. Rubin wrote:
On 6/29/19 7:43 AM, Steve Hnizdur wrote:
Hi
I need to use this code
\[\newdir{ >}{{}*!/-10pt/@{>}}\xymatrix{X\ar[r]\ar@{ >->}[d] & Y\ar@{
>->}[d]\\Z \ar[r] & W}\]
in order to move the tail of the vertical arrows away from the entries
X and Y. This works in an ERT but when inputting in native LYX it
strips out the important spaces in \newdir{ >} and @{ >->}. Is there
any way to force LYX to accept these spaces.
Many thanks
I think the problem is that you named your new arrowhead " >" (meaning
the name contains a space). Changing that to something else seems to fix
the problem. Based on an example in the LyX xy-pic help file, I used a
vertical bar (so the first argument to \newdir is "|>"). I've attached a
working (for me at least) LyX file.
Paul >
Hi
Thanks for that. I had taken the code directly from the XY-pic User’s
Guide. Now, having played with it ANY allowable LYX character seems to
work e.g. x.
There have been other instances where LYX will not allow input of
characters, for instance the tilde ~. I needed this in \ar@{~>}[r] in
xy-pic to produce a squiggly arrow. I eventually forced it in by pasting
into the maths environment. The screen shows LYX thinks there is a
space, the code view shows a tilde, but when trying to input tilde from
the keyboard LYX converts it to \sim which then throws a compile error.
Cheers
--
Steve Hnizdur
