2007/10/10, Peter Rolf <[EMAIL PROTECTED]>: > Hi Peter, > > MASON Peter J schrieb: > > I'm trying to layout a grid of bullets. The results isn't the expected > > one. Perhaps someone could offer help here? Thanks. > > > > Here's the sort of thing I'm doing .... > > > > \setuplayout[leftmargin=0pt, leftmargindistance=0pt, backspace=0pt, > > rightmargin=0pt, rightmargindistance=0pt, cutspace=0pt, width=middle, > > topspace=0pt, header=0pt, headerdistance=0pt, footer=0pt, > > footerdistance=0pt, bottomspace=0pt, height=middle] > > > > %\showlayout > > > > \starttext > > \setuppositioning[unit=cm] > > \startpositioning > > \newcount\Row > > > > \Row = 0 > > \loop > > { > ^^ > > \newcount\Col > > > ^^ > > \Col = 0 > > \loop > > \position(\Col, \Row) {$\bullet$} > > \ifnum\Col < 14 > > \advance\Col by 1 > > \repeat > > } > ^^ > > \ifnum\Row < 36 > > \advance\Row by 1 > > \repeat > > \stoppositioning > > \stoptext > > > You introduce "spurious spaces" (line break sometimes adds a space) in > you loops. See > > http://tug.ctan.org/tex-archive/info/texbytopic/ > > if you want to learn more about it. > > > \starttext > \setuppositioning[unit=cm] > \startpositioning > \newcount\Row > \newcount\Col > > \Row=0 > \dorecurse{36} > {\Col=0 > \dorecurse{14} > {\position(\Col,\Row){$\bullet$} > \advance\Col by 1 > }% > \advance\Row by 1 > } > \stoppositioning > \stoptext > > > Remove the comment sign behind the inner loop and see what happens. > > Also see > > http://wiki.contextgarden.net/System_Macros/Loops_and_Recursion > > for the nicer ConTeXt loop macros. > > > Best wishes, Peter
Hi, there is smarter and better solution than loop for doing this work, you can use leaders. I prefer myself xledaers in this example (alternative b). \defineoverlay[PageGrid][\PageGrid] \setupbackgrounds[page][background=PageGrid,offset=5mm] \starttext % alternative a: \def\PageGrid {\setbox\scratchbox\hbox to\dimexpr\paperwidth-1cm\relax {\leaders\hbox to 1cm{\hss$\bullet$\hss}\hfill}% \vbox to\dimexpr\paperheight-1cm\relax {\leaders\vbox to 1cm{\vss\box\scratchbox\vss}\vfill}} \page[empty] % alternative b: \def\PageGrid {\setbox\scratchbox\hbox to\dimexpr\paperwidth-1cm\relax {\xleaders\hbox to 1cm{\hss$\bullet$\hss}\hfill}% \vbox to\dimexpr\paperheight-1cm\relax {\xleaders\vbox to 1cm{\vss\box\scratchbox\vss}\vfill}} \page[empty] % alternative c: \def\PageGrid {\setbox\scratchbox\hbox to\dimexpr\paperwidth-1cm\relax {\cleaders\hbox to 1cm{\hss$\bullet$\hss}\hfill}% \vbox to\dimexpr\paperheight-1cm\relax {\cleaders\vbox to 1cm{\vss\box\scratchbox\vss}\vfill}} \page[empty] \stoptext Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________