[Xy-pic] Re: Modifying one dimension of a box

[Alexander Perlis]

Michael Abbott <michael@araneidae.co.uk> asked:
> Why do lines to *=<3x>[F-]{} go to the center, while lines to
> either *=<3x>[F-]{ } or *=<3x>[o][F-]{} respect the boundary?

Not an answer, but a comment:
By using *=<3ex>[][F-]{}, the boundary is respected. This is closest
in spirit with *=<3ex>[o][F-]{}, since [] and [o] are each shape
specifiers.

However (and someone who knows, please correct me), it should be the
case that [] is the default shape specifier, so leaving it off ought
to work, yet Michael's experience indicates otherwise.


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