On Mon, 2008-12-22 at 14:28 -0600, John Griessen wrote: > Peter Clifton wrote: > > > http://www2.eng.cam.ac.uk/~pcjc2/geda/screenshots/gschem_alpha.png > > > > Just a dumb example, but its pretty, don't you think? > > Sure do. Should be possible to blend anything, right?
Yes, but only with the "OVER" composite operator for now. Lets try to stay on cairo's fast paths! > Some symbols could be transparent > rather than the example opaque triangle? Yes, I added the opaque triangle path deliberately to show I could do that. Otherwise it would have shown through to the translucent box I drew behind it. > What about layer order - could one make a stack up > with a transparent zone on top of opaque symbols to emphasize a zone? Layer order is the file-order at the moment. Peter B made some noises about adding some code to allow you to shuffle the order in the file from within gschem. Zone emphasis like I did with that box? If it were on top of the symbol, then it would have painted translucent green over the symbols. > Or, how about zones that dim the > view through them for de-emphasis? There is no sub-compositing of symbols, so if you paint something down, you can't then undo the fact later. And the blend operation is always "OVER", so no dimming effect. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) _______________________________________________ geda-dev mailing list geda-dev@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev
