Am 04.04.2011 um 01:22 schrieb Tim Steenvoorden: > Thanks Peter! You are right it is easier to draw both the wave and the > line in Metapost. And the dx=-\cutspace is just what I needed for left > pages! > > I striped the frames out of the code and placed just the graphics in > the layer with a reuseMPgraphic. Also, I pulled out the definition of > the wave into a MPinclusions. I have to do LoadPageState in each > graphic though. > > %\showframe > \setuppapersize[A5][A5] > \setuppagenumbering[alternative=doublesided] > > \startMPinclusions > numeric periods, width; > path wave; > periods := 3 + 1/4; > width := periods * 2*pi; > wave := origin for x=0 step 0.1 until width: > .. (x,x*sin(x)) > endfor; > \stopMPinclusions > > \startreusableMPgraphic{rightwave} > LoadPageState; > pickup pencircle scaled 1pt; > draw origin -- (TextWidth,0) -- wave xscaled (CutSpace/width) yscaled > (LineHeight/width) shifted (TextWidth,0); > %setbounds currentpicture to unitsquare xscaled (TextWidth+CutSpace); > \stopreusableMPgraphic > > \startreusableMPgraphic{leftwave} > LoadPageState; > pickup pencircle scaled 1pt; > draw reverse wave xscaled (-1*CutSpace/width) yscaled > (LineHeight/width) -- (TextWidth,0); > \stopreusableMPgraphic > > \definelayer[decorations][position=yes,option=test] > \setupbackgrounds[page][background=decorations] > > \starttext > > {\ss\bfc A chapter title} > \blank[small] > {\ss\bfx \date \hfill Author Name} > \setlayer[decorations][location=r]{\reuseMPgraphic{rightwave}} > > \input knuth > > \page > > {\ss\bfc A very long chapter title on two or more lines} > \blank[small] > {\ss\bfx \date \hfill Author Name} > \setlayer[decorations][location=r,dx=-\cutspace]{\reuseMPgraphic{leftwave}} > > \input knuth > > \stoptext > > Just one problem is left. The graphic occupies space in the text layer > as if the location was set to rb. If you place it with the position=no > option, it is properly placed in the background and it doesn't disturb > the text. Is this a bug or a feature? > > I tried to play a bit with the bounding boxes, but I think I don't > understand them that well.
Your problem is that you use {\ss\bfc …} etc. to place the title rather than contexts \title command where you can define your own command. With such a command you can put all text in a frame with your graphic a background. - http://wiki.contextgarden.net/Generate_Authorlist_from_Head_Content - http://wiki.contextgarden.net/Titles#A_complex_graphical_element_under_the_chapter_title 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________