[OS X TeX] xy-pic problems

Ross Moore ross at maths.mq.edu.au
Sat Oct 30 14:51:39 CEST 2004


On 30/10/2004, at 9:47 AM, Roger Hart wrote:

> I've been trying to use xy-pic to draw some diagrams and have had two 
> major troubles which I've been unable to solve: 1) the arrows it draws 
> are jagged, very noticeably so in printouts; 2) resizing does not work 
> properly, resulting in arrows missing their intended targets.

Load the package using the PostScript back-end:

   \usepackage[dvips,ps,all]{xy}

If you use TeXShop, then you will need to use  the  TeX+Ghostscript
processing mode.


> Unfortunately, the arrows are jagged.  And because xy-pic is designed 
> more for commutative diagrams than the matrices I wish to draw, I need 
> to reduce their size, and I've tried all sorts of arguments and values 
> to try to get the arrows to look nice, such as,
>
> @! @R=6pt @C=6pt @M=0pt @H=0pt @W=0pt
>
> but have been unable to get straight arrows at any size.  And when I 
> use various parameters above, the arrows fail to connect to their 
> targets.

Can you tell which fonts are being loaded for the Xy-pic pieces ?
It sounds like you may be using the (very) old bitmaps,
rather than the scaleable Type1 fonts.


>
> I'm not sure what I'm doing wrong, and obviously, I'm not much of an 
> expert on xy-pic.  I'd very much appreciate any suggestions.

Send an example .log file for one of your jobs,
and perhaps a PDF of it as well.


Hope this helps,

	Ross Moore


>
> Thanks very much,
>
> Roger
>
> ********************************
>
> Roger Hart
> Assistant Professor, Departments of History and Asian Studies
> University of Texas at Austin
>
> email: rhart at mail.utexas.edu
> http://uts.cc.utexas.edu/~rhart
>
> *********************************
>
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