sounds like a topic that would benefit form some academic papers. have you tried a search for papers on the topic on "google scholar"? ---- Best Regards, Dmitry Grinberg (847) 226 9295
On Wed, Nov 26, 2008 at 12:56 PM, Luc Le Blanc <[EMAIL PROTECTED]> wrote: > I'm working on implementing a freehand sketching tool in my cave survey > freeware (http://www.speleo.qc.ca/Auriga). I must implement a small subset of > what CAD programs like HandlixDraw (http://www.handlix.com/) can do: recover > pen input, compress the series of screen points to skip the less meaningful > ones, find knots (inflexion points), turn that into a spline and allow > further editing when a knot is tapped and dragged. > > Any tip, code sample, online or book info on the data reduction, line > smoothing and knot-finding aspects of the problem would be appreciated. So > far, I found plenty of online literature on creating a spline that follows > knots, but nothing of the upstream processes that lead to these knots, even > less when considering the possibly wobbly line and the uneven dot spacing you > may get from sketching on a small PDA screen. > > > Luc Le Blanc > -- > For information on using the ACCESS Developer Forums, or to unsubscribe, > please see http://www.access-company.com/developers/forums/ > -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
