Hi René, I will take the most basic version of your request to be: you'd like "export to PDF" to produce a PDF file with one page per layer, showing the successive layers one after the other (first background + layer 1 only, then add layer 2, add layer 3, etc. until all layers are there).
(Note: if you don't want the first annotation layer to appear immediately, just add an empty layer under your other layers... so it seems more useful to start with layer 1 included.) (This is the simplest thing to do -- graying things out etc. would be ok for pen annotations but might be harder for other things). This is a non-trivial patch, but not all that difficult -- one needs to change the printing code so that (1) printing a page can stop after a specified layer, and (2) the main printing loop iterates over layers as well. The annoying thing is that we have two different sets of PDF export code (legacy vs. new); and the new PDF export code is factored with printing, but when printing one definitely shouldn't export the layers one by one. If I have time I'll try to code it right away, since it seems pretty useful. Denis On 07/06/2015 02:57 AM, rrvhassel wrote: > Hellow Denis, > > > several years I'm using xournal, a very nice program. > At this moment I have a question, the following: > "If you make a xournal file with different layers, > how can I behave those different layers in a pdf-file?" > So I doesn't want that those layers merge to one file. > > I want to make a pencast. So I want to speak to the > students about a subject and by clicking at a pdf-file > I want to let them see something, which is written down > at my Wacom Bamboo tablet. But I don't want to > let them see everything at once, but part by part. > > See for a example the webpage of Sue Glascoe: > http://www.livescribe.com/cgi-bin/WebObjects/LDApp.woa/wa/MLSOverviewPage?sid=hTfc27c7QDPk > > or: > http://tech4mathed.com/Livescribe/LivescribeResources_GlascoeDownloadablePencasts.html#complexnumbers > > > Here you see that text changes of color from gray to black or green, > such a thing would also be nice to do with xournal. > I have no idea if that is difficult to realize, > > > Kind regards, > > > Rene' van Hassel > -- Denis Auroux UC Berkeley, Department of Mathematics 817 Evans Hall, Berkeley CA 94720-3840, USA aur...@math.berkeley.edu ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Xournal-devel mailing list Xournal-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xournal-devel
