Re: Visualising row and column marks

[Valeriy E. Ushakov]

On Tue, Dec 11, 2001 at 17:31:34 +0800, Grahame Bowland wrote:

> I'm sure this could be done with a @Graphic and some postscript, but how
> do I get the coordinates of the marks to embed within the postscript?

xmark and ymark.  This is documented in the Expert's Guide.B
E.g.

    def @Show right x {
      { 0 0 moveto xsize 0 lineto xsize ysize lineto 0 ysize lineto
        closepath 0.75 setgray fill
        1 0 0 setrgbcolor
        xmark 0 moveto xmark ysize lineto stroke
        0 ymark moveto xsize ymark lineto stroke
      } @Graphic x
    }

SY, Uwe
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