[R] problem clipping R postscript plots within latex

Stephen Eglen stephen at cogsci.ed.ac.uk
Tue Aug 1 17:42:26 CEST 2000

 > > generated by R into a latex document.  Specifically, the latex package
 > > graphicsx allow you to specify the bounding box of the postscript
 > > file, so that you can just show _part_ of the postscript file if you
 > > tell it to also clip the area outside of the bounding box.
 > Ow. This stems from the use of "initclip" in the R-generated PS. One
 > shouldn't do that, one should bracket clipped graphics within
 > gsave/grestore instead. Sounds a bit tricky to get right.

Thanks.  To solve my current problem, I changed the definition of the
`cl' operator in the postscript file to:

/cl  { gsave initclip newpath 3 index 3 index moveto 1 index
       4 -1 roll lineto  exch 1 index lineto lineto
       closepath clip grestore newpath } def

[i.e. just adding the gsave ... grestore pair]

Whether this is the proper solution though is another matter...


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