On 10 Sep 2012, at 13:20, JuanPi wrote: > On Mon, Sep 10, 2012 at 1:01 PM, c. <carlo.defa...@gmail.com> wrote: >> Hi, >> >> I need to compute the "signed distance" of a point P from a polygon Q, >> i.e., the distance of P from the polyline including Q with a "+" sign if >> the point is inside the polygon and a "-" sign if it is outside. >> >> I see "distancePointPolygon" in the geometry package computes the distance >> but always returns a positive number. Is there already a function to do >> what I need? >> >> If not, any idea where I can look-up the algorithm to modify >> "distancePointPolygon" >> according to my needs? >> >> Thanks, >> c. > > Hi, > > I would not modify the function, but use it together with inpolygon > (in the core geomtry package). > > I guess this is what you want > http://agora.octave.org/snippet/FRXH/ > > Let me know
Yes, I had already answered my own qeustion seconds after I posted it ;) Cool to see that snippets are working on the new Agora though ... c. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
