OK, now maybe I get it. This might help someone...
It's the **contents** of the layer that get repeated if you set repeat=yes in \definelayer - as in http://wiki.contextgarden.net/Layers If you do a \setlayer then this simply adds to the existing stack of contents displayed on the layer. You get more and more stuff until you do a \resetlayer, assuming you set repeat=yes in the \definelayer. Thus(?) \definelayer is all about the contents of the layer (? Apart from setting the dimensions and so on... I think that's what deflected me into thinking that this command was about the canvas, and the \setlayer about the contents.) The \setupbackgrounds[page][state=repeat,background={XXX}] is the command that puts the logical layer on each page. If this seems about right then I'll have a go at adding a sentence or two to the wiki...maybe on-one else thinks of it in terms of the existence and then the population of a layer...? On 26 April 2011 17:44, Hans Hagen <pra...@wxs.nl> wrote: > On 26-4-2011 6:26, Ian Lawrence wrote: > > >> But when I get to a new page I'd like to be able to change that plug, >> or even have the layer blank > > that happens automatically unless the state of the layer is set to 'repeat' > > so normally, once a layer is placed its content is forgotten > >> \page[yes] >> >> \setlayer [SPTinteractivemedium] % name of the layer >> [hoffset=0px, voffset=0px,] % placement (from upper left >> corner of the layer) >> { \externalfigure [dummy][width=100px]} % the actual >> contents of the layer >> >> And; >> >> \page[yes] >> \setlayer [SPTinteractivemedium] % name of the layer >> [hoffset=0px, voffset=0px,] % placement (from upper left >> corner of the layer) >> { \externalfigure ??????? } % HOW TO SET THE >> \externalfigure to >> NOTHING, or hide the layer? > > \resetlayer [SPTinteractivemedium] > >> I might try changing the backgrounds on a page by page basis, but this >> seems inelegant, as the \setups ought to be before the \starttext..? > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com > | www.pragma-pod.nl > ----------------------------------------------------------------- > ___________________________________________________________________________________ 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 ___________________________________________________________________________________
