>From: Simon Budig <simon@xxxxxxxx> > >The Link you gave does not work. Try now: ftp://ftp.funet.fi/pub/sci/audio/devel/constraints/ http://ftp.funet.fi/pub/sci/audio/devel/constraints/ >In fact there is a vector based infrastructure and I also believe that >it is quite flexible. Simply fiddle a bit with the Path tool to get an >idea how this works. Could you read the sketchpad.pdf and check how it differs from how the path tool is handled? The constraints directory has other pdf papers of which you could read at least the introductory sections. They give some background and motivation. The qoca subdirectory has some papers related to Qoca constraints library (GPL) -- search the source code from the web. Regards, Juhana